Polyurethanes with end silane groups

FIELD: chemistry.

SUBSTANCE: composition is obtained by mixing of (a) first polyurethane with end silane groups obtained by interreaction of: (i) monofunctional compounds with (ii) isocyanate component containing two isocyanate groups and following interreaction of reaction product of components (i) and (ii) with (iii) compound containing group reactive toward isocyanate and one or more reactive silane groups whereat at least 10 mole % of component (iii) is compound of formula (I): with formation of moisture-crosslinked alcoxysilane functional polyesterurethane; and (b) second polyurethane with end silane groups obtained by interreaction of: (i) linear, branched or cyclic alkylmonofunctional alcohol containing 1-20 of carbon atoms, amine and/or thiol with (ii) isocyanate component containing two isocyanate groups and with product of the interreaction of components (i) and (ii) with compound (iii) containing group reactive toward isocyanate and one or more reactive silane groups corresponding to formula (I).

EFFECT: coating films applied to the substrate possess excellent tensile strength and tensile elongation which provides reducing of film cracking, blistering and peeling.

17 cl, 4 ex

 

1. The scope of the invention

The present invention relates to compositions based on urethane with alkoxysilane functional groups, in particular to compositions based on urethane with alkoxysilane functional groups, used in adhesives, sealants and compositions for coatings.

2. Prior art

Adhesives are usually used to connect or fasten two or more bonding materials. The bonding materials are any two or more of the material or part of material, which are connected to each other, including wood, metals, plastics, paper, ceramics, stones, glass, concrete, etc. Used for this purpose adhesives based on various technologies, including mixtures elastomer/solvent/resin, epoxy, latexes, polyurethanes, silicones, cyanoacrylates, acrylates, hot melts and more. Such adhesives can have one or more disadvantages, such as the possible content of toxic and often flammable solvents, possible incompatibility with one or more classes of connected materials, possible undesirable long curing time and in many cases lack the strength they formed the connection in the connection.

Often applied to the substrate coating preferably giving the desired external VI is a, in many cases, by applying multiple coating layers, the latter of which may be pigmented or non-pigmented top layer. Unfortunately the article containing the substrate with a coating, aging, and appearing under normal wear and friction scratches tend to degrade the appearance of the coated substrate surface.

The sealant is typically a thin film, often containing plastic, which is applied to one or more surfaces of one or more substrates to prevent penetration of liquid or gas through the film. Sealant can be used to prevent exposure of the substrate or often additionally to prevent exposure through defects in the substrate or between the gaps that may exist between the substrates.

In U.S. patent No. 6590028 name Probst and others describes aqueous two-component polyurethane system, the way they are received and used to produce coatings with high resistance, high stability and excellent optical properties.

In published patent application U.S. 2003/0039846 A1 in the name Roesler, etc. described two-component composition for coatings containing polyisocyanate component, a component capable of interacting with isocyanates, containing less than 3 wt.% aromatic floor the amine and from 0.1 to 1.8 wt.% from the mass of other components of the connection, containing at least one epoxy group and at least one alkoxysilane group.

In published patent application U.S. 2003/0173026 A1 in the name of Wu and others, describes a composition based adhesive with wilanowie functional groups for coupling window glass with a painted substrate. The method comprises applying to the glass or substrate composition based adhesive with wilanowie functional groups, contacting the glass substrate and curing the adhesive.

In published patent application U.S. 2003/0153671 A1 in the name Kaszubski, etc. described moisture-curable adhesive comprising a polymer containing reactive end silicone band, transparent filler and dehydrating agent.

However, both the original and especially after exposure to the elements previously known compositions adhesives, sealants and composition for coating does not provide sufficient tensile strength and/or elongation at break for the protection of substrates to which they were applied. In the cured film obtained from such adhesives, sealants and compositions for coatings, prone to cracking, swelling or peeling, exposing located underneath the substrate.

Therefore, in the technique, there is an urgent need for such compositions, adhesives, sealants, and in which omposite coating, which give opaque film with excellent breaking strength and elongation at break, changing as the source properties, and after exposure to the elements.

The invention

The present invention is directed to obtaining a cured composition on the basis of polyetherurethane with alkoxysilane functional groups, obtained by blending

a) a first polyurethane with integral wilanowie groups, obtained by the interaction of:

i) monofunctional compounds selected from the group consisting of polyethers, polyamines, polyethers with terminal amino groups or polysulfides containing hydroxyl, amine or tirinya functional groups, or mixtures thereof, having srednecenovogo molecular weight of from 500 to 20000, with

ii) an isocyanate component containing two isocyanate groups, the interaction of the reaction product (i) and (ii)

iii) a compound containing groups capable of interacting with isocyanates, and one or more reactive Milanovich groups, in which at least 10 mol.% component (iii) is a compound corresponding to the formula (I):

where

X represents identical or different organic groups which are inert with respect to isocyanate groups at a temperature below 100°C, when the us is ovii, that, at least, these two groups are alkoxy or acyloxy groups,

Y represents a linear or branched alkylenes group containing from 1 to 8 carbon atoms, and

R1represents an organic group inert to isocyanate groups at a temperature of 100°C, or a group corresponding to the formula (II):

with the formation of blagodatnejshego of politicalarena with functional alkoxysilane groups; and

b) a second polyurethane with integral wilanowie groups, obtained by the interaction of:

i) containing 1-20 carbon atoms, a linear, branched or cyclic alkylphosphocholines alcohol, amine and/or thiol with

ii) an isocyanate component containing two isocyanate groups, the interaction of the reaction product (i) and (ii)

iii) a component containing reactive towards isocyanate group and one or more reactive Milanovich groups corresponding to the above formula (I).

The present invention relates also to compositions for coating, the composition of the sealant or adhesive composition comprising the above-described cured composition on the basis of politicalarena with alkoxysilane functional groups and one or more components selected and the pigments, plasticizers and fillers.

In another embodiment of the invention described above, the composition for the coating is applied, at least part of the surface of the substrate to obtain a substrate with the coating.

Another embodiment of the invention relates to a method of connection of the first bonding material with a second bonding material, including:

causing, at least part of the surface of the first bonding material and at least a portion of the surface of the second bonding material described above adhesive composition;

contacts containing the adhesive composition to a surface of the first bonding material containing the adhesive composition to a surface of the second bonding material to form a linked composite and

curing the adhesive composition in the associated composite.

Detailed description of the invention

In addition to the examples describing the process or when otherwise indicated, all numbers or expressions referring to quantities of ingredients, reaction conditions, etc. used in the description and claims, should be understood as modified in all instances by the term "about". Various numerical limits disclosed in this patent application. Because these limits are continuous, they include any value between the minimum and maximum value. Unless specifically indicated otherwise, the various numerical limits specified in this proposal represent an approximation.

Embodiments of the present invention relates to cured compositions based on polyetherurethane with alkoxysilane functional groups, obtained by blending

a) a first polyurethane with integral wilanowie groups and

b) a second polyurethane with integral wilanowie groups.

Used herein, the term "silane group" refers to a silanol group containing at least two alkoxy or acyloxy group, which in some cases is defined as the Deputy "X". Silane group containing two or more alkoxy and/or acyloxy group that is reactive a silanol group. In one of the embodiments of the invention X is a group according to the formula: -O-R10where R10selected from the containing 1-5 carbon atoms, a linear or branched alkyl.

Used herein, the term "urethane" refers to a compound containing one or more urethane groups and/or urea groups. Without limiting the invention, examples of urethanes which can be used in the invention include compounds containing one or more urethane groups and, possibly, urea group, and compounds containing urethane groups, and g is uppy urea.

In the embodiment of the invention the first polyurethane with integral wilanowie groups (a) can be obtained by the interaction of:

i) monofunctional compounds selected from polyethers, polyamines, polyethers with terminal amino groups or polysulfides having hydroxyl, amino or tirinya functional groups, and mixtures thereof, having srednecenovogo molecular weight of from 500 to 20000, with

ii) an isocyanate component containing two isocyanate groups.

In the embodiment of the invention monofunctional compounds may have srednecenovogo molecular weight of at least 500, in some cases, at least 1000, and in other cases at least 1500. Monofunctional compounds can also be srednecenovogo molecular weight up to 20,000, in some cases up to 17500, and in other cases up to 15000. Srednecenovogo molecular weight determined by gel chromatography (GPC) with polystyrene standards.

In the embodiment of the invention the reaction product of i) and ii) is subjected to interaction with

iii) a compound containing a group capable of interacting with isocyanates, and one or more reactive Milanovich groups, in which at least 10 mol.% component (iii) is a compound corresponding to the formula (I):

where

X represents identical or different organic groups which are inert with respect to isocyanate groups at a temperature below 100°C., provided that at least two of these groups are alkoxy or acyloxy groups. In a special embodiment of the invention, one or more groups X are the corresponding formula-O-R10where R10is selected from the containing 1-5 carbon atoms, a linear or branched Akilov.

Y represents a linear or branched alkylenes group containing from 1 to 8 carbon atoms, and

R1represents an organic group inert to isocyanate groups at a temperature of 100°C, or a group corresponding to the formula (II):

where Y and X have the above values.

Used here, the term "alkyl" refers to the monovalent aliphatic hydrocarbon radical with a chain of General formula CsH2s+1where s represents the number of carbon atoms or the limit values of their possible content according to special orders. The term "substituted alkyl" refers to an alkyl group in which one or more hydrogen atoms replaced by an atom other than carbon atom, or group. Non-limiting examples of such atoms or groups include halides, amines, alcohols, oxygen such as ketone or aldehyde group) and thiols.

Used herein, the term "cycloalkyl" refers to the monovalent aliphatic hydrocarbon radical with a chain, forming a ring of the General formula CsH2s-1where s represents the number of carbon atoms or maximum possible value of their content according to special orders. The term "substituted cycloalkyl" refers to cycloalkyl the group containing the structure of the ring one or more heteroatoms. Non-limiting examples are-O-, -NR -, and-S - and/or if one or more of the hydrogen atoms replaced by an atom other than carbon atom, or a group, non-limiting examples of such atoms or groups include halides, amines, alcohols, oxygen (such as ketone or aldehyde group) and thiols. R represents an alkyl group with 1-24 carbon atoms.

Used herein, the term "aryl" refers to the monovalent radical of aromatic hydrocarbons. Aromatic hydrocarbons include cyclic carbon compounds containing conjugated double bonds, in which 4t+2 electrons included in the received cyclic conjugated pi-orbital system, where t is an integer and at least 1. Used here aryl group may include a single aromatic ring structure, one or more condensed aromatic ring structure is R, covalently linked aromatic ring structures, some of which or all of which may include heteroatoms. Non-limiting examples of such heteroatoms, which may be included in an aromatic ring structure include oxygen, nitrogen and sulphur.

Used herein, the term "alkylene" refers to acyclic or cyclic bivalent hydrocarbon radical with the length of the hydrocarbon chain from C1(in the case of an acyclic hydrocarbon radical) or from C4(in the case of a cyclic hydrocarbon radical) to C25usually With2to C12which may be substituted or unsubstituted and may have substituents. Non-limiting examples alkilinity groups may be lower alkyl radicals containing from 1 to 12 carbon atoms. As non-limiting illustrations "propylene" may include both n-propylene, and isopropylene group and the like, "butylene" may include both n-butylene, and isobutilene and tertbutylphenol group.

Used herein, the term "oxyalkylene" refers to alkalinous group containing one or more atoms of oxygen. The term "kalkeren" refers to divalent aromatic group which may be substituted in the ring. The term "alkylaryl" refers to any acyclic alkalinous g is the SCP, containing at least one aryl group, a non-limiting example of which is phenyl.

Embodiments of the invention provide that the product obtained by the interaction of the reaction product (i) and (ii) with iii), is cured under the action of moisture polyetherurethane with alkoxysilane functional groups.

In the embodiment of the invention monofunctional compounds a-i) can have a structure according to formula (III):

where R2is selected from the containing 1-22 carbon atoms, a linear, branched or cyclic alkyl, aryl, aralkyl, alkaryl or alkenyl; in each case, R3independently selected from hydrogen, methyl or ethyl and in each case Z is independently selected from oxygen, sulfur or-NR4-where R4selected from hydrogen, methyl, ethyl, propyl, n-butyl and tertbutyl. The coefficient n is an integer from 1 to 5, in some cases from 1 to 4, in other cases from 1 to 3, in some situations, from 1 to 2, in other situations, from 2 to 4 and in some cases from 2 to 5. The coefficient m is an integer and can mean at least 1, in some cases at least 2, in other cases at least 3, in some situations, at least 4, and in other situations at least 5. The coefficient m can also mean on the 1000, in some cases, up to 750, in other cases up to 500 and in some cases up to 250. The value of the coefficient m can have any of the above mentioned value, or between the above limit values.

In a special embodiment of the invention monofunctional compounds a-i) is monohydroxybenzene simple polyester. In the specific embodiment a simple polyester may be polyoxypropylene and/or polyoxyethylene.

Suitable polyethers that may be used in the invention include polyethers with srednetsenovoj molecular weight of at least 250, in some cases, at least 500, and in other cases at least 1000. Value srednetsenovoj molecular weight of polyetherpolyols can have a value of up to 20,000, in some cases, up to 15000, and in other cases up to 12000. Brednikova molecular weight of polyetherpolyols can change and accept the value between any of the above values.

In the embodiment of the invention, the polyethers have a maximum unsaturation of 0.1 milliequivalent/g (mEq/g) or less, in some cases, less than 0.04 mEq/g, in other cases less than 0.02 mEq/g, in some situations less than 0.01 mEq/g, in other situations to 0.007 mEq/g or less and in special situations of 0.005 mEq/g or less. The amount of unsaturation varies in the depending on the method, used to obtain a polyether, as well as its molecular weight. Such polyethers are known and can be obtained, not limited to the above examples, oksietilirovannye and/or oxypropylene corresponding molecules. Non-limiting examples of suitable source molecules include aliphatic, cycloaliphatic and analiticheskie alcohols, phenol and substituted phenols such as methanol, ethanol, the isomeric structure propanol, butanol, pentanol and hexanol, cyclohexanol and more high-molecular compounds such as Nonylphenol, 2-ethylhexanol and the mixture containing 12 to 15 carbon atoms linear primary alcohols (non-limiting examples include NEODOL® 25, supplied by Shell Chemical Company, Houston, TX). Suitable unsaturated alcohols such as allyl alcohol and hydroxyquinoline esters, such as hydroxyethylated and hydroxyethylacrylate. Preferred are the higher-molecular monohydroxybenzene, especially Nonylphenol and mixtures containing 12-15 carbon atoms of linear primary alcohols.

According to the embodiment of the invention polyethers obtained by a method described in one or more European patent application EP-A 283148 and U.S. patents№3278457, 3427256, 3829505, 4472560, 3278458, 3427334, 3941849, 4721818, 3278459, 3427335 and 4355188 listed here in CA is este links. According to a particular embodiment of the invention polyethers obtained using as catalysts double metal cyanide.

According to the embodiment of the invention component a-i) is contained in a concentration of at least 40%, in some cases at least 45%, and in other cases at least 50% by weight of the composition. Component a-i) may also contain at a concentration up to 99%, in some cases up to 95%, in other cases up to 90%, in some situations up to 85%, and in other situations up to 80% by weight of the composition. The content of component a-i) in the composition can have any of the above mentioned value, and changes between any of the above values.

According to the embodiment of the invention component a-ii) is contained in a concentration of at least 0.5%, in some cases at least 1%, and in other cases at least 2.5 percent by weight of the composition. Component a-ii) may also be contained in a concentration of at least 30%, in some cases up to 25%, and in other cases up to 20% by weight of the composition. The content of component a-ii) in the composition can have any of the above mentioned value, or change between any of the above values.

According to the embodiment of the invention component (a-iii) is present in a concentration of at least 0.5%, in some cases at least 1%, and in other cases at m is re, to 2.5% by weight of the composition. Component a-iii) may also be present in concentrations up to 35%, in some cases up to 30%, in other cases up to 25%, and in some situations up to 20% by weight of the composition. The content of the component (a-iii) in the composition can have any of the above value and can vary between any of the above values.

According to the embodiment of the invention is equivalent to the ratio of the JI project:IT component a-ii) to (a-i) is at least 1,5:1, in some cases, at least, of 1.6:1, and in other cases at least about 1.75:1. The equivalent ratio of NCO:OH of the component a-ii) to (a-i) may be up to 2.5:1, in some cases up to 2.4:1, in other cases up to 2.25:1, and in some situations up to 2.1:1. The equivalent ratio of NCO:OH of the component a-ii) to (a-i) can have any of the above value and can vary between any of the above values.

In the embodiment of the invention the first polyurethane with integral wilanowie groups (a) is present in a concentration of at least 45%, in some cases, at least 50%, and in other cases at least 55% by weight of the composition. The first polyurethane (a) with integral wilanowie groups is also present in concentrations up to 90%, in some cases up to 85%, in other cases up to 80% and in some situations up to 75% by weight of the composition. The contents of the first polyurethane with concave and wilanowie groups (a) in the composition can have any of the above mentioned value, and can vary between any of the above values.

According to the embodiment of the invention, the second polyurethane with integral wilanowie groups b) receive interaction:

i) containing 1-20 carbon atoms, a linear, branched or cyclic alkylphosphocholines alcohol, amine and/or thiol with

ii) an isocyanate component containing two isocyanate groups, followed by interaction of the reaction product of components (i) and (ii)

iii) a component containing a group reactive towards isocyanates, and one or more reactive Milanovich groups corresponding to the above formula (I).

In the embodiment of the invention, the component (b-i) is contained in a concentration of at least 2%, in some cases, at least 3%, and in other cases at least 5% by weight of the composition. Component b-i) may also be present in concentrations up to 30%, in some cases up to 25 wt.%, and in other cases up to 20% by weight of the composition. The content of the component (b-i) in the composition can have any value specified above, and may vary between any of the above values.

In the embodiment of the invention, the component (b-ii) is contained in a concentration of at least 25%, in some cases at least 30%, and in other cases at least 35% by weight of the composition. Component b-ii) may also be contained in a concentration of up to 60%, in some SL is the teas to 55 wt.%, and in other cases up to 50% by weight of the composition. The content of component b-ii) in the composition can have any of the above mentioned value, and can vary between any of the above values.

In the embodiment of the invention, the component (b-iii) is present in a concentration of at least 20%, in some cases at least 25%, and in other cases at least 30% by weight of the composition. Component b-iii) may also be present in concentrations up to 65%, in some cases up to 60 wt.%, in other cases, up to 55%, and in some situations up to 50% by weight of the composition. The content of the component (b-iii) in the composition can have any of the above value and can vary between any of the above values.

In the embodiment of the invention is equivalent to the ratio of the JI project:IT component b-ii) to (b-i) is at least 1,5:1, in some cases, at least, of 1.6:1, and in other cases at least about 1.75:1. The equivalent ratio of NCO:OH of the component (b-ii) to (b-i) may also be up to 2.5:1, in some cases up to 2.4:1, in other cases up to 2.25:1, and in some situations up to 2.1:1. The equivalent ratio of NCO:OH of the component (b-ii) to (b-i) can have any of the above mentioned value, and can vary between any of the above values.

In the embodiment of the invention, the second polyurethane with integral wilanowie groups b) composition is employed, at least 10%, in some cases at least 15%, in other cases at least 20%, and in some situations at least 25% by weight of the composition. The content of the second polyurethane with integral wilanowie groups (b) can be up to 55%, in some cases up to 50%, and in other cases up to 45% by weight of the composition. The content of the second polyurethane with integral wilanowie groups b) in the composition can have any value specified above, and may vary between any of the above values.

In the embodiment of the invention, the isocyanate component containing two isocyanate groups, a-ii and b-ii) includes, but is not limited to, organic diisocyanates of the formula (IV):

where R5represents an organic group obtained by removing isocyanate groups from an organic diisocyanate with a molecular weight of from about 112 to 1,000, in some cases from about 140 to 400.

In the embodiment of the invention, the isocyanates are compounds of the above formula in which R5represents a divalent aliphatic hydrocarbon group containing from 4 to 18 carbon atoms, a divalent cycloaliphatic hydrocarbon group containing from 5 to 15 carbon atoms, divalent analiticheskoy hydrocarbon group containing from 7 to 15 at the MOU carbon, or a divalent aromatic hydrocarbon group, containing from 6 to 15 carbon atoms.

In addition, in this embodiment of the invention suitable organic diisocyanate may include 1,4-tetramethyldisilane, 1,6-hexamethylenediisocyanate, 2,2,4-trimethyl-1,6-hexamethylenediisocyanate, 1,12-dodecyltrimethoxysilane, cyclohexane-1,3 - and -1,4-diisocyanate, 1-isocyanato-2-isocyanatobenzene, 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane (isophorondiisocyanate or IPDI), bis(4-isocyanatophenyl)methane, 1,3 - and 1,4-bis(isocyanatomethyl)cyclohexane, bis(4-isocyanatophenyl)methane, 2,4'-diisocyanatohexane, bis(4-isocyanato-3-methylcyclohexyl)methane, α,α,α',α'-tetramethyl-1,3 - and/or -1,4-xylylenediisocyanate, 1-isocyanato-1-methyl-4(3)-isocyanatomethyl, 2,4 - and/or 2,6-hexahydrotriazine, 1,3 - and/or 1,4-delete the entry, 2,4 - and/or 2,6-tolylenediisocyanate, 2,4 - and/or 4,4'-diphenylmethanediisocyanate and 1.5-diisocyanatomethyl and mixtures thereof.

In some embodiments of the invention can be used in small amounts, i.e. up to 5%, in some cases, from 0.1 to 5%, and in other cases from 0.5 to 3.5% by weight of the total contents of isocyanate components, polyisocyanates containing 3 or more isocyanate groups. Non-limiting examples of suitable polyisocyanates which may be used include 4-isocyanatomethyl-1,8-octamethylene the Anat and aromatic polyisocyanates, such as 4,4',4"-triphenyltetrazolium and polyvinylpyrrolidine received by postironium condensates of aniline with formaldehyde.

In a particular variant embodiment of the invention, diisocyanates include bis(4-isocyanatophenyl)methane, 1,6-hexamethylenediisocyanate and isophoronediisocyanate, especially bis(4-isocyanatophenyl)methane and isophorondiisocyanate.

In one variant embodiment of the invention monofunctional compound in b-i) is a compound with a molecule containing a linear, branched or cyclic alkyl having 1-20 carbon atoms, in some cases, 2-16 carbon atoms and one hydroxyl, amino or Tilney group. Non-limiting examples of suitable monofunctional compounds for b-i) include ethanol, n-propanol, n-butanol, n-tertbutanol, n-Propylamine, n-butylamine, trebutien, n-propylmercaptan, n-butylmercaptan, tertbutyl mercaptan and mixtures thereof.

In one variant embodiment of the invention components (a-iii) and b-iii) can include compounds of structural formula (V):

where Y and X have the above meaning.

In a particular variant embodiment of the invention components (a-iii) and b-iii) can independently be a compound selected from N-phenylaminopyrimidine, bis(γ-triethoxysilylpropyl)amine, N-cyclohexylamine is retaxation, N-methylenedioxymethcathinone, N-buylamisilnoprescriptionsale, N-buylamisilnoprescriptionsale, 3-(N-ethyl)amino-2-methylpropionitrile, 4-(N-ethyl)amino-3,3-dimethylethoxysilane, 4-(N-ethyl)amino-3,3-dimethylethoxysilane, 4-(N-ethyl)amino-3,3-dimethyloctadecylchlorosilane, 4-(N-ethyl)amino-3,3-dimethylbutylnitrile, 4-(N-ethyl)amino-3,3-dimethylethoxysilane, 3-(N-ethyl)-amino-2 methylpropylketone and mixtures thereof.

In another variant embodiment of the invention components (a-iii) and b-iii) independently from each other may be one or more compound of formula (VI):

where

Y and X have the above values,

R6and R9are linear or branched alkyl group containing 1-9 carbon atoms, and

R7and R8are the same or different and represent hydrogen or linear or branched alkyl group containing 1-9 carbon atoms.

In one variant embodiment of the invention cured composition based alkoxycyanobiphenyl polyetherurethane may include one or more plasticizers, one or more adhesion promoters, one or more catalysts, one or more moist collectors, one or more alignment, one or more smace is atela, one or more controllers fluidity, one or more agents that prevent the formation of film on the surface, one or more of antispyware, one or more fillers, one or more viscosity regulators, one or more pigments, one or more dyes, one or more UV absorbers, one or more stabilizers and/or one or more antioxidants.

Non-limiting examples of plasticizers that can be used in the present invention include dioctylphthalate (DOP), dibutyl phthalate (DBP), diisodecylphthalate (DIDP), dioctyladipate, istallment, diethylenglycol, pentaerythritol ether, bucilla, methylacetylene, tricresylphosphate and trioctylphosphine, polypropylenglycol and polybutylenglycolether and the like. Such plasticizers can be used alone or in combination of two or more of them.

Non-limiting examples of adhesion promoters that can be used in the present invention include epoxy resins, phenolic resins, silanes and aminosilane agents combinations known in the field, alkylsilane and/or aromatic polyisocyanates.

Non-limiting examples of catalysts which can be used for curing in the present invention include esters of titanates, e.g. the measures tetrabutyltin and tetrapropylene; organic compounds of tin, for example, dibutyltindilaurate, dibutylamine, dibutylaminoethanol, olowookere and abonament; activit lead compounds with amines and salts of these compounds and carboxylates, for example butylamine, octylamine, dibutylamine, monoethanolamine, diethanolamine, triethanolamine, Diethylenetriamine, Triethylenetetramine, oleylamine, octylamine, cyclohexylamine, benzylamine, diethylaminopropylamine, xylylenediamine, triethylenediamine, guanidine, diphenylguanidine, 2,4,6-Tris(dimethylaminomethyl)phenol, morpholine, N-methylmorpholine and 1,3-diazabicyclo(5,4,6)-undecene-7 (DBU); low molecular weight polyamide resin obtained by the interaction of excess polyamines and polienovykh acids; products obtained by the interaction of excess polyamines and epoxy compounds; known condensation catalysts silanols, for example, the agents of the combination of silanes containing amino group (for example, γ-aminopropyltrimethoxysilane and N-(β-amino-ethyl)amino-propylmethyldimethoxysilane). These compounds can be used individually or in combination.

Non-limiting examples of moist collectors, which can be used in the present invention include calcium oxide, activated alumina, calcium chloride, silicia the ü, VINYLTRIMETHOXYSILANE and chloride of zinc.

Non-limiting examples of the leveling agents which can be used in the present invention include cellulose derivatives such as nitrocellulose and acetylsalicylate.

Non-limiting examples of wetting, which can be used in the present invention include glycols, silanes, anionic surface-active agents and other known in the field of wetting.

Non-limiting examples of regulating the turnover of agents that can be used in the present invention include polyacrylic esters, nonionic surfactants based on fluorinated alilovic esters, nonionic alkylsilane polyether alcohols, silicones, and the like, as well as agents supplied to the market under the trade name RESIFLOW® from Estron Chemical, Inc., Parsippany, NJ, agents, supplied under the trade name of Benzoin® from DSM, Inc., agents supplied under the trade name MODAFLOW® from Monsanto and agents, supplied under the trade name SURFYNOL® from Air Products, Bethlehem, PA.

Non-limiting examples of agents that prevent plenkoobrazovatel on the surface, which can be used in the present invention include lecithin; oxides, non-limiting examples of which include Butyraldehyde the SIM, methylethylketoxime; hydrochinone limiting examples of which include 2,5-di-(tertbutyl)hydroquinone, methyl ether of hydroquinone or anthraquinone.

Non-limiting examples protivovspenivayushchie agents that can be used in the present invention include agents that are supplied under the name FOAMEX® from Rohm and Haas Company, Philadelphia, PA; agents that supplied under the trade name of BYK® from BYK-Chemie USA, Wallingford, CT, and agents, supplied under the trade name of FoamBrake® from BASF Corp., Mount Olive, NJ.

Non-limiting examples of fillers that may be used in the present invention include fumed silica, precipitated silica, silicic anhydride, a hydrate, silicic anhydride, talc, gas, soot, lime powder, colloidal calcium carbonate, coated or uncoated, crushed calcium carbonate coated or uncoated precipitated calcium carbonate coated or uncoated, kaolin, diatomaceous earth, fired clay, clay, titanium dioxide, bentonite, organic bentonite, iron oxide, zinc oxide, activated zinc white and fibrous fillers such as glass fiber or filaments. The filler can have any suitable particle size. In the embodiment of the invention the particle size of the filler may range from 5 nm to 10 μm, in some is that cases from 10 nm to 5 μm, and in other cases from 25 nm to 1 μm.

Non-limiting examples of viscosity regulators, which can be used in the present invention include soluble in alkalis or acids and modified to impart hydrophobicity soluble in alkali or acid emulsion polymers, such as supplied under the name ACRYSOL® from Rohm and Haas Company, cellulose, modified cellulose, natural gums, such as xanthan gum, and the like.

Non-limiting examples of pigments that can be used in the present invention include silicon dioxide, calcium carbonate, magnesium carbonate, titanium oxide, iron oxide and gas soot.

Non-limiting examples of dyes that can be used in the present invention include potravnyi dyes, i.e. dyes obtained from plants, insects and algae, and direct dyes, non-limiting examples of which include dyes based on benzidine and derivatives benzidine.

Non-limiting examples of UV absorbers which may be used in the present invention include UV absorbers based on benzotriazole, salicylate, benzophenone, difficult amines and Nickel.

Non-limiting examples of stabilizers that can be used in the present invention, vklyuchayuschiy hydrogen chloride, non-limiting examples of which include epoxydecane soybean oil, esters of beta-thiodipropionic acid, non-limiting examples of which include lauric, stearyl, ministerului or tridecylamine esters, mercaptobenzimidazole, zinc salt of 2-mercaptobenzimidazole, dibutyldithiocarbamate zinc, dictatorially, pentaerythritoltetranitrate-(beta-dodecylmercaptan)propionate and phosphate of lead.

Non-limiting examples of antioxidants that can be used in the present invention include 2,6-ditertbutyl, 2,4-ditertbutyl, 2,6-ditretbutyl-4-METHYLPHENOL, 2.5-ditretbutilfenol, n-octadecyl-3-(3,5-di (tertbutyl-4-hydroxyphenyl)propionate, pentaerythrityl-tetrakis[3-(3,5-ditretbutyl-4-hydroxyphenyl)propionate], 2,2'-Methylenebis(4-methyl-6-tertbutylphenol), 4,4'-butylidene-bis(3-methyl-6-tertbutylphenol), 4,4'-thio-bis(3-methyl-6-tertbutylphenol), N,N'-diphenyl-p-phenylenediamine, 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline and antioxidants, supplied under the trade name IRGANOX® from Ciba Specialty Chemicals, Basel, Switzerland.

In the embodiment of the present invention are compositions for coatings, the composition of the sealant or adhesive composition comprising the above-described cured composition on the basis of polyetherurethane with alkoxysilane functional groups and one or more washes is in, selected from one or more pigments, one or more plasticizer and/or one or more filler.

In the present invention it was discovered that instead of disilane to get cured alkoxyalkanols of polyetherurethanes used in compositions for coatings, sealants or adhesives, can be used monosilane. It was found that if the high-molecular polyester monosilane used individually, the cured product was too soft for use. If low molecular weight monosilane used individually, the cured product was too hard. However, if in the above-described curing composition used a combination of high and low molecular weight polyester monosilane, you get songs to cover, song, sealants and adhesives, providing optimum physical properties of the cured product.

Suitable pigments which can be used when implementing the invention, but are not limited to, include perylenes, chinagreen, phthalocyanines, isoindolines, dioxazines (tribendimidine), 1,4-diketopiperazines, intraperitone, antandroy, flavanone, indanthrene, perinone, parentani, thioindigo, 4,4'-diamino-1,1'-dianthrones and azo compounds, and substituted about Sevodnya and mix.

Suitable plasticizers that may be used when implementing the invention, include, but are not limited to the above-described plasticizers. Similarly, suitable fillers include the above-described fillers, but not limited to.

The present invention relates also to a method of coating a substrate comprising applying the above composition for coating at least a portion of the surface of the substrate. The invention relates also to a substrate with a coating obtained by the method described above. When such a substrate may include, but are not limited to, one or more materials selected from wood, metals, plastics, paper, ceramics, minerals, stone, glass and concrete. In a particular variant embodiment of the invention, the substrates may include wood and metals, such as substrates made of iron and aluminum substrates, and plastic.

Composition for coating may be applied by conventional methods such as brushing, dipping, sprinkling, spraying, and the like. After application to the substrate the composition give to stick to education on the substrate, essentially continuous film. Film formed on the surface of the substrate by removing liquid from the film during heating or after a period of air drying.

The present invented the e relates also to method of connection of the first bonding material with a second bonding material, including:

applying the above adhesive composition, at least part of the surface of the first tight bonding material and at least a portion of the surface of the second bonding material

contacts containing the adhesive composition to a surface of the first bonding material containing the adhesive composition to a surface of the second bonding material for formation of the associated composite; and

curing the adhesive compositions in the associated composite.

The method of connection leads to the formation of the composite. The composite includes a first bonding material and the second bonding material, which independently of each include one or more materials selected from wood, metals, plastics, paper, ceramics, minerals, stone, glass and concrete.

The present invention is described in more detail in the following examples are illustrative only of the invention, since the person skilled in the art will be apparent, numerous modifications and variations. Unless otherwise indicated, all parts and percentages are by mass parts " and " percent.

Examples

Example 1

This example shows getting cienporcienmusic aspartate according to the invention. Aspettava resin was obtained according to the patent school is No. 4364955 in the name of Kramer and others A 5-liter flask equipped with stirrer, thermocouple input for nitrogen, an additional funnel and a condenser, was added 1483 (8,27 equivalent, EQ.) 3 aminopropyltrimethoxysilane then adding 1423,2 g (8,27 EQ.) diethylmaleate for two hours at 25°C and kept at this temperature for five hours. The number of unsaturation, as defined by iodine titration, was 0.6, indicating that the reaction occurred approximately 99%. The viscosity measured by Brookfield viscometer® Digital Viscometer, Model DV-II+, Brookfield Engineering, Inc., Middleboro, MA, the spindle 52, 100 rpm, at 25°C, was equal to 11 JV.

Example 2

This example describes how to obtain polyurethane with integral wilanowie groups (PCB 1) according to the invention. A 5-liter round bottom flask equipped with a mixer, the input of nitrogen, an additional funnel and a condenser, was added 150,9 g (1.1 EQ.) isophorondiisocyanate, 3664,1 g (0.6 EQ.) poliefirnaya with equivalent molecular weight 6411 obtained according to U.S. patent No. 4355188 and 0.6 g of dibutyltindilaurate. The reaction mixture was heated to 60°C for three hours, after which the content of isocyanate groups of the NCO was 0.65 wt.% according to NCO titration (theoretical content = 63%). Then added 202,2 g (0,57 EQ.) aspartate with wilanowie functional groups from Example 1 and the mixture was stirred at 60°C for 60 mine is, then the content of NCO groups by IR was not detected. At this moment added 20 g of VINYLTRIMETHOXYSILANE as an absorber of moisture. The viscosity was 16100 CPS (at 25°C.

Example 3

This example describes how to obtain polyurethane with integral wilanowie groups (PCB 2) according to the invention. A 5-liter round bottom flask equipped with a mixer, the input of nitrogen, an additional funnel and a condenser, was added 366,7 g (3.3 EQ.) isophorondiisocyanate, the 122.7 g (0,165 EQ.) n-butanol and 0.2 g of dibutyltindilaurate. The reaction mixture was heated to 60°C for three hours, after which the content of isocyanate groups of the NCO was 14 wt.% according to NCO titration (theoretical content = 14,2%). Then added 605,1 g (of 1.65 EQ.) aspartate with wilanowie functional groups from Example 1 and the mixture was stirred at 60°C for 60 minutes, after which the content of NCO groups by IR was not detected. At this moment added 5.5 g of VINYLTRIMETHOXYSILANE as acceptor moisture. The viscosity was 242000 CPS (at 25°C.

Example 4

This example describes how to get Milanovich sealants according to the invention. The sealant composition:

37.5 wt.%a mixture of prepolymers;
17.5 wt.%JAYFLEX® DIDP, isdecimal,
supplied by ExxonMobil Chemical Corp.,
Houston, TX;
to 0.8 wt.%SILQUEST® A-1120, aminosilane,
supplied by Crompton Corp.,
Middlebury, CT;
0.1 wt.%dibutyltindilaurate;
0.5 wt.%SILQUEST®A-171, VINYLTRIMETHOXYSILANE,
supplied by Crompton Corp.

For mixing the above components used high-speed centrifugal mixer. Mixing was carried out at a speed of mixing 2200 rpm for one minute. Added filler Ultra PFlex® (0,07 m precipitated calcium carbonate coated)supplied Minerals Technology, Inc., New York, NY, the two parts with obtaining 43,6 wt.% from the composition. Added the first portion of 23.6 wt.% from 43,6 wt.% and was mixed into the mixture at a speed of 2200 rpm for one minute. Then the mixture was mixed into the remaining portion of the filler 20 wt.% from 43,6 wt.% within one minute at a speed of 2200 rpm After that, all the content was stirred for another minute when MSE of the spine 2200 rpm The resulting material was then subjected to degassing at 50°C under vacuum (less than 28 mm Hg) for one hour.

Were prepared with the following composition sealants (part of a pre-polymer mixture specified in mass units) by mixing the following ingredients:

100
The PCB 1The PCB 2Disilane3UTS (psi)1Modulus (psi)2Elongation at break, %
4A10000SoftSticky
4B01000Fragile
4C70300333126427
4D0022377498

1The tensile strength.
2The modulus at 100%relative elongation at break.
3Kanegafuchi M203, disilane supplied by Kaneka America Corp., New York.

The data obtained show that silane sealant based on high-molecular-weight poliefirnaya is too soft for use; silane sealer on the basis of a low-molecular monooly is too hard to use; but a mixture of both gives the sealant, which is favorably compared with the sealant on the basis of commercial disilane. This result was previously not known.

Although the invention in the previous described in detail for the purpose of illustration, it should be understood that such details are only used for this purpose only, and that the specialist can be changed, without departing from the essence and scope of the invention, to the extent that it is limited by the claims.

1. Cured composition based alkoxycyanobiphenyl polyetherurethane, obtained by blending
a) a first polyurethane with integral wilanowie groups, obtained by the interaction of:
i) mo is Funktsionalnyi compounds, selected from the group consisting of polyethers, polyamines, polyethers with terminal amino groups or polysulfides with hydroxyl, amino or thiol functional groups and mixtures thereof, and having srednecenovogo molecular weight of from 500 to 20000, with
ii) an isocyanate component containing two isocyanate groups, the interaction of the reaction product (i) and (ii) with
iii) a compound containing a group reactive towards isocyanates, and one or more reactive Milanovich groups, in which at least 10 mol.% component (iii) is a compound of formula (I)

where X means alkoxygroup containing from 1 to 5 carbon atoms, Y represents remotemachine or branched alkylenes group containing from 1 to 8 carbon atoms, and
R1means a group of the formula

where R6and R9are the same or different and indicate an alkyl group containing from 1 to 9 carbon atoms, and
R7and R8mean hydrogen,
with the formation of the moisture-curable alkoxycyanobiphenyl polyetherurethane and
B) a second polyurethane with integral wilanowie groups, obtained by the interaction of:
i) containing 1-20 carbon atoms, a linear, branched or cyclic alkyl is monofunctionalized alcohol, amine and/or thiol with
ii) an isocyanate component containing two isocyanate groups, the interaction of the reaction product (i) and (ii) with
iii) a compound containing a group reactive towards isocyanates, and one or more reactive Milanovich groups corresponding to the formula (I)as defined above.

2. The composition according to claim 1 in which the monofunctional compounds a-i) have a structure according to formula (III)

where R2selected from the containing 1-22 carbon atoms, a linear, branched or cyclic alkyl, aryl, aralkyl, alkaryl and alkenyl; in each case, R3independently selected from hydrogen, methyl and ethyl; n denotes a number from 1 to 5, m denotes a number from 10 to 1000; and in each case Z is independently selected from oxygen, sulfur and-NR4-where R4selected from hydrogen, methyl, ethyl, propyl, n-butyl and tert-butyl.

3. The composition according to claim 1 in which the monofunctional compound in a-i) is monohydroxybenzene simple polyester.

4. The composition according to claim 3, in which a simple polyester selected from polyoxypropylene or polyoxyethylene.

5. The composition according to claim 1 in which the monofunctional compound in b-i) selected from n-propanol, n-butanol and tert-butanol.

6. The composition according to claim 1 in which the isocyanate components of a-ii and b-ii) is independently selected and is diisocyanates of the formula (IV)

where R5selected from the group consisting of divalent aliphatic hydrocarbon group containing from 4 to 18 carbon atoms, a divalent cycloaliphatic hydrocarbon group containing from 5 to 15 carbon atoms, divalent analiticheskoi hydrocarbon group containing from 7 to 15 carbon atoms, or divalent aromatic hydrocarbon groups containing from 6 to 15 carbon atoms.

7. The composition according to claim 1 in which the isocyanate components of a-ii and b-ii) is independently selected from the group consisting of 1,4-tetramethyldisilane, 1,6-hexamethylenediisocyanate, 2,2,4-trimethyl-1,6-hexamethylenediisocyanate, 1,12-dodecyltrimethoxysilane, cyclohexane-1,3 - and -1,4-diisocyanate, 1-isocyanato-2-ISO-centosettanta, 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane, bis(4-isocyanatophenyl)methane, 1,3 - and 1,4-bis(isocyanatomethyl)cyclohexane, bis(4-isocyanatophenyl)methane, 2,4'-diisocyanatohexane, bis(4-isocyanato-3-methylcyclohexyl)methane, α,α,α',α'-tetramethyl-1,3 - and/or -1,4-xylylenediisocyanate, 1-isocyanato-1-methyl-4(3)-isocyanatomethyl-cyclohexane, 2,4 - and/or 2,6-hexahydroterephthalate, 1,3 - and/or 1,4-phenylenediamine, 2,4 - and/or 2,6-toluylene diisocyanate, 2,4 - and/or 4,4'-diphenylmethanediisocyanate and 1.5-diisocyanatobutane and their the mixtures./p>

8. The composition according to claim 1, in which the connection of the a-iii and b-iii) is a compound of formula (V)

where Y and X are defined above.

9. The composition according to claim 1, in which the connection of the a-iii and b-iii) is a compound selected from the group consisting of N-phenyl-aminopropyltrimethoxysilane, bis(γ-triethoxysilylpropyl)amine, N-cyclohexyltrichlorosilane, N-methylenedioxymethcathinone, N-buylamisilnoprescriptionsale, N-buylamisilnoprescriptionsale, 3-(N-ethyl)amino-2-methylpropionitrile, 4-(N-ethyl)amino-3,3-dimethylethoxysilane, 4-(N-ethyl)amino-3,3-dimethylethoxysilane, 4-(N-ethyl)amino-3,3-dimethyloctadecylchlorosilane, 4-(N-ethyl)-amino-3,3-dimethylbutylnitrile, 4-(N-ethyl)amino-3,3-dimethylethoxysilane and 3-(N-ethyl)amino-2-methylpropionitrile.

10. The composition according to claim 1, in which the connection of the a-iii and b-iii) is a compound of formula (VI)

where Y and X have the above values,
R6and R9are alkyl groups containing 1-9 carbon atoms, and
R7and R8represent hydrogen.

11. The composition according to claim 1, additionally containing one or more plasticizers, one or more adhesion promoters, one or more catalysts and/or one or more vlagopoglotiteli the lei, one or more leveling agents, one or more wetting, one or more agents that regulate the fluidity, one or more agents that prevent the formation of film on the surface, one or more of antispyware, one or more fillers, one or more viscosity regulators, one or more pigments, one or more dyes, one or more UV absorbers, one or more stabilizers and/or one or more antioxidants.

12. The composition according to claim 1, in which
a-i) is contained in an amount of from 40 to 99% by weight of the composition;
a-ii) is contained in an amount of from 0.5 to 30% by weight of the composition;
a-iii) is contained in an amount of from 0.5 to 35% by weight of the composition;
b-i) is contained in an amount of from 2 to 30% by weight of the composition;
b-ii) is contained in an amount of from 25 to 60% by weight of the composition;
b-iii) is contained in an amount of from 20 to 65% by weight of the composition.

13. The composition according to claim 1, in which the equivalent ratio of NCO:OH for a-ii) to (a-i) is from 1.5:1 to 2.5:1.

14. The composition according to claim 1, in which the equivalent ratio of NCO:OH for b-ii) to (b-i) is from 1.5:1 to 2.5:1.

15. The composition according to claim 1, in which the equivalent ratio of NCO:NH for the reaction product of a-i and a-ii) to the component (a-iii) is from 1.5:1 to 2.5:1.

16. The composition according to claim 1, in which the equivalent ratio of NCO:NH for the reaction product of b-i and b-ii) to component (b-iii) is 1:1 to 2.5:1.

17. The composition according to claim 1, in which the contents of the first polyurethane with integral wilanowie groups a) is from 45 to 90% by weight of the composition, and the content of the second polyurethane with integral wilanowie groups (b) is from 10 to 55% by weight of the composition.



 

Same patents:

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, particularly to the method of producing sealer-lubricant that comprises selecting diblock copolymer from the group of styrene-ethylene/butylene or styrene-ethylene, propylene and combination thereof. It also includes and combining diblock copolymer with mineral oil at temperature lower than that of glass transition of styrene zones. Proposed method can comprise also filtration of styrene-rubber diblock copolymer to produce particles sized to less than 1 mm.

EFFECT: sealer with higher creep resistance at 70 to 80°C.

6 cl, 3 dwg, 6 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: described is hardened composition containing: polymer polythioether; and polyepoxy-compound based on multi-base acid, in which polymer polythioether is obtained by method including the following stages: carrying out reaction of first polythiol with compound having one epoxy-group and second group, different from epoxy-group, which can react with thiol group with formation of first prepolymer, where polytiol preferably reacts with second group; carrying out reaction of first prepolymer and second polytiol with epoxy-group until second prepolymer is obtained; and carrying out reaction of second prepolymer and third polytiol with polyvinyl ether and polyfunctionalising agent. Also described is method of obtaining said above hardened composition, its application as sealant, leak-proof sealing up.

EFFECT: improved corrosion stability and adhesion of said hardened compositions under impact of fuels.

15 cl, 6 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to flat sealing material for manufacturing cylinder head gaskets. Material represents composite film reinforces with fibre and/or binding substance and made from first fibre (polyetherketone), second reinforcing fibre (aramid, carbon and their mixtures) and binding substance. Sealing material is produced by pressing one or more fibre sheet.

EFFECT: obtaining sealing product which is thermally stable at operating temperature to 330°C and has general layer thickness from 0,01 to 3 mm.

19 dwg

FIELD: chemistry.

SUBSTANCE: ready-for-use composition of drying-type binding mix includes binding substance, thickening system, filler, water and biocide, with thickening system containing non-linked sodium carboxymethylcellulose (CMC) with bottom limit of degree of substitution (DS) of 0.76 and bottom limit of polymerisation degree (DP) of 1000 at amount of 0.01 to 0.6 wt % of the total composition weight. CMC with degree of carboxymethyl substitution (DCMS) over or equal to 0.76, optionally together with non-ionogenic thickening agent, or CMC with DCMS under 0.75 is used as modifier of rheological properties and partial clay substitute in binding compositions.

EFFECT: elimination of most negative properties of clay in binding substance.

38 cl, 3 tbl

FIELD: chemistry.

SUBSTANCE: invention concerns multicomponent local foam system for obtaining foam polyurethanes for local construction purposes, consisting of polyisocyanate (component A), and polyene containing water (component B), stored in separate containers, and epoxy resin based on bisphenol A and bisphenol F, and/or siloxane forpolymer with average mol weight from 200 g/mol to 10000 g/mol with reactive end alcoxy groups (component C), generic catalyst for polyurethane generation reaction and/or generic binding agent for siloxane forpolymer (component D) in spatially divided form, and optional filler, one or more colourants or pigments and generic additives. When mixed, the components of foam system form interpenetrating polymer mesh structure out of foamed polyurethane and at least one other polymer, with excellent adhesion to adjoining wall material, thus reducing water penetration or forming mechanically stable cork in case of fire to render resistance to fire. Claimed foam system is foaming and solidifying in severe conditions on construction site, e.g. at temperatures from 0°C to 40°C, and non-homogeneously filling of volume.

EFFECT: sealing of fractures and/or through orifices in building walls and/or floors.

23 cl, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: proposed paste contains non-equilibrium content alloy powder with excess metal, capable of diffusion hardening and thermal reaction when heated with gallium. Gallium, saturated with nitrogen at pressure of not less than 5 MPa and temperature equal to melting point of gallium, is used in the paste. Minimum weight content of gallium is between 30% and 60%. Diffusion hardening temperature of the paste lies between 29.7°C and 700°C and the time interval lies between 2 and 8 hours.

EFFECT: increased strength of the paste.

3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to anaerobic sealing compositions used for sealing and locking threaded cylindrical or flanged joints. The composition contains ether of methacrylic acid, i.e. a mix of aromatic and aliphatic oligo ether acrylates containing at least 10 wt % of aromatic oligo ether acrylate, the initiating additive and accelerating additive, i.e. pre-alloyed mix of sulphonamide, amine and hydrazine compounds taken in the molar ratio of (2-2.5):1:1, a stabilising additive and filler.

EFFECT: improved quality of anaerobic composition due to reduction in time of assembling at ambient temperature after introducing proposed composition into threaded cylindrical or flanged joint.

2 tbl, 20 ex

FIELD: chemistry.

SUBSTANCE: invention refers to adhesive polymer composite material, method of production thereof, product keeping its shape, and hermetic or adhesive composition containing mentioned composite material used in automotive engineering, constructional engineering, wood working, printing industry, footwear industry, as well as in sealing materials and insulation substance. The task in view is solved due to application of polymer composite including at least one hydrogenated or nonhydrogenated polymer nitrile rubber with Mooney viscosity (ML 1+4 at 100°C) less than 30 at least one cross-linking agent or vulcanizing system, and if required at least one bulking agent. Hydrogenated or nonhydrogenated polymer nitrile rubber is derived from metathesis reaction of polymer nitrile rubber with one or several compounds of general formulas I, II, III or IV. If required it is followed by hydrogenation.

EFFECT: development of composite material with long adhesive capacity, elasticity and thermal stability.

9 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: hardened by moisture composition of hermetic contains (in wt %): amorphous poly-alpha-olefin polymer with silane functional group (5-80), thermoplastic elastomer (10-75) and gluing agent (5-60), as well as versions of insulating glass packets with application of claimed hermetic.

EFFECT: hermetic composition is suitable for combination of glass with various substrates.

12 cl, 1 tbl, 3 ex

FIELD: construction.

SUBSTANCE: grouting compound contains, wt %: mineral binding agent - expanding alumina, gypsum alumina cement, portland cement, lime, salts of silicic or phosphoric acids or their mixture - 50-95, and expanding additive, which is a product of acid and/or base interaction with cement - 5-50. To produce compound expanding additive is prepared by acid and/or base interacting with cement in water-disperse medium, suspension curing, drying, milling and mechanical mixing all compound components.

EFFECT: prevention of all leaks and reinforcement of element fixing in construction structures.

8 cl, 2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention refers to vessel under pressure intended for obtaining of 1-, 1.5- and/or 2-component foamed polyurethane, sealing foams and spray glues based on polyurethane e.g. for gluing of mat-type insulant and roof coverings with each other or with a base. This vessel contains prepolymer based on polyisocyanate and polyatomic alcohols, foaming means as well as usual auxiliary means such as antipyrens, stabilisators, openers, catalysts etc. The said prepolymer represents the monomer depleted prepolymer based on polyurethane and is obtained by inerreaction of asymmetric polyisocyanates having at least two isocyanate groups with one of them interreacting preferably with sterically hindered polyatomic alcohols. Two sterically hindered polyatomic alcohols have at least two hydroxyl functional groups, at least one of them is secondary or tertiary hydroxyl group. The foams are obtained from vessel under pressure due to very strong curing. The latter is caused by decrease of the monomer content in prepolymer due to chemical reactions 0°-5°C.

EFFECT: foam good shrinking properties, enhanced elasticity at low temperatures.

9 cl, 1 ex

FIELD: technological processes.

SUBSTANCE: invention is related to composition for production of sprayed hard polyurethane foams of heat- and hydro-insulation purpose, for instance for sealing of constructional structures (roof, walls and floors), for arrangement of refrigerating chambers, for heat insulation of pipelines, etc. Composition includes, at certain mass ratio, the following components: hydroxyl containing compound - oxypropylethylenediamine and simple ether based on propylene oxide, catalyst is dimethylethanolamine, foaming agent is water, foam regulator is surface active substance on the basis of oxyalkyl methyl siloxane block copolymers and polyisocyanate, and also additionally, fire retardant - trichloroethyl phosphate, complex catalyst - tin octoate, acetous sodium, triethanol amine and solution of catalytically active salts in glycols.

EFFECT: ecologically safe fire resistant composition makes it possible to provide for high strength indicators (compression strength), density of final hard foam plastic and start time sufficient for shaping of high-quality foamed product with even density in volume and proper external surface.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention concerns two-pack composition for ground reinforcement by compression in mining and construction engineering. Composition includes forpolymer component based on methylenediphenyldiisocyanate and multiatom alcohol component with several functional groups, mixing and compression of which ensures fast polymerisation, reaction temperature of 130°C, foaming below five times increase of initial volume, mechanical tension of 1 MPa by ageing for 30 minutes to 5 hours after gluing, and devoid of significant fissuring caused by internal tension during polymerisation. Limited reaction capability is achieved by volumetric mixing of components at 1:1 ratio of methylenediphenyldiisocyanate forpolymer with N=C=O number from 18 to 24, preferably 22, to multiatom alcohol with several functional groups maintaining N=C=O number from 1.1 to 1.4, and ensures good adhesion to carrier. One of the composition components includes foam suppressant consisting of non-ion surfactants and non-saponifying substances.

EFFECT: obtaining composition with enhanced fireproof properties, limited foaming at contact with unlimited water quantity, ensuring reduced danger of forming fractures and heating related to possible air leakage, and good mechanical properties.

15 cl

FIELD: chemistry.

SUBSTANCE: composition includes catalyst- dimethylethanolamine, stabiliser - surface - active substance based on oxyalkylene methylsiloxane block copolymers, and additionally contains foaming agent - water.

EFFECT: ecological safety, preserving catalyst ability during long storage and ensuring obtaining rigid foam-polyurethane, optimal for formation of even product structure start time, density and improved strength characteristics.

2 tbl

FIELD: chemistry.

SUBSTANCE: present invention pertains to the method of obtaining polyester alcohols, used for making polyurethanes. The method involves reaction of saturated alkylene oxides with at least, one saturated OH-containing compound or with alkylene oxide, oligo- or polymerised saturated OH-containing compound. The reaction takes place in the presence of a catalyst, based on bimetallic cyanides. An antioxidant is added before the reaction. The quantity of the antioxidant is more than the quantity of the bimetallic cyanide based catalyst, in terms of the mass of the bimetallic cyanide based catalyst.

EFFECT: increased activity of the catalyst, degree of conversion of alkylene oxides and output of the process, as well as reduced the content of impurities in the end product.

6 cl, 1 tbl, 13 ex

FIELD: chemistry.

SUBSTANCE: invention concerns compositions reactive towards isocyanate, applied for obtaining rigid foamed polyurethanes of heat insulation purpose. Invention claims polyol composition including (wt %) four polyols as polyol reagent: reaction product of propylene oxide with aqueous ethylenediamine solution with hydroxyl value within 729-800 mg of KOH/g and dynamic viscosity within 1500-2000 mPa·s at 50°C ·- Lapromol 294 (0.4-0.8); simple polyether based on propylene oxide and glycerin with hydroxyl value of 480 mg of KOH/g and dynamic viscosity within 400-500 mPa·s at 25°C - Laprol 373 (6.5-8.5); sucrose polyether product of oxypropylation of sucrose and water mix with hydroxyl value within 400-450 mg of KOH/g and dynamic viscosity within 2000-3000 mPa·s at 25°C - Polyur A-01 or simple polyether based on propylene oxide and sucrose system with hydroxyl value within 465-515 mg of KOH/g and dynamic viscosity within 7500-11500 mPa·s at 25°C - Laprol ES-564 (28.0-36.0); polyether from polyol mix with hydroxyl value within 329-461 mg of KOH/g and 60 s viscosity by viscosity gauge VZ-246 at 20°C - Polyur AZ-20 grade A (14.0-25.0); and additionally including antipyrene additive of tri-(β-chlorethyl)phosphate (the rest).

EFFECT: obtaining polyol composition preserving reactivity towards isocyanate during long storage time, obtaining rigid polyurethane with improved durability properties maintaining required density.

1 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to method of production of fire-resistant foampolyurethane basing on composition, which includes polyetherpolyol, polyisocyanate, extended graphite, amine activator, frothing agent - water or Freon, melamine cyanurate and glycerin, polyethrpolyol in interaction with polyisocyanate is preliminary mixed with amine activator, glycerin, frothing agent and mixture, composed of extended graphite, melamine cyanurate and phosphogypsum as modifying agent, with ratio (1-2):(1-2):1 respectively, phosphogypsum being introduced in amount from 30 to 50 wt % from total amount of components. Foanpolyurethane, produced by means of claimed method, has high fire-resistance, preserving heat-insulating and soundproof properties, higher strength indices, and is more economically profitable, as contains as part of its composition cheaper mineral filler, namely phosphogypsum, which is waste product of phosphoric acid and phosphate fertilizers production. Such foampolyurethane can be applied in transport, construction and other branches of industry, where heat- insulating and sound-proof materials are required.

EFFECT: creation of efficient method of fire-resistant foampolyurethane production.

2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention pertains to polyurethane resin, which is a product of a reaction between at least one diisocyanate and components, containing functional groups, which have capacity to react with isocyanates, with the following composition: (a) first group, which is formed by one or more polyester-polyols based on ethers, each of which has average molecular mass ranging from 400 to 12000 g/mol, (b) second group, formed by one or more poly hydroxilated resins, chosen from a defined group of resins, (c) optional third group, formed by one or more polyols, each of which has average molecular mass, equal to or less than 800 g/mol, which are also chosen from a defined group of polyols, and (d) at least one amine and a reaction chain-stopping agent. The ratio of equivalent masses of diisocyanate and components, containing functional groups, with capacity to react with isocyanates, is chosen such that, naturally all isocyanate groups of diisocyanate are present as a product of the reaction with one of the above mentioned functional groups, with capacity to react with isocyanates. The invention also relates to the method of obtaining the above mentioned polyurethane resin, to polyurethane resin obtained through such methods, to coating for plastic substrates, containing the proposed resin, as a polyolefin binding substance, to use of such a polyurethane resin as a film forming substance in printing ink for printing on plastic substrates, as well as to the method of obtaining a laminate, which has a layer obtained when printing an image, including stages (a)-(d), with use of coating from polyurethane resin, and to a laminate, obtained using such a method.

EFFECT: obtaining a coating from polyurethane resin, with good heat resistance and excellent initial adhesiveness.

20 cl

FIELD: technological processes.

SUBSTANCE: invention is related to the filtration method of grafted polyol dispersions with use of repeated filter system. Invention describes a method of grafted polyol filtering with use of refillable filter system consisting in a) use of refillable filter system that consists of the first tank and the second tank; b) the first part of the positive-displacement filter material is installed between the first and the second tanks thus developing fluid-tight seal is developed between the first tank and filter material; c) dispersion of grafted polyol is loaded to the first tank; d) dispersion of grafted polyol is let to the second tank through filter material, and e) the first part of positive-displacement filter material is removed from the area between the first and the second tanks and the second part of clean positive-displacement filter material with twisting pores is installed between the first and the second tanks. Received filtered dispersion of grafted polyol has particles of maximum size of 25 microns and is stable for various conditions for minimum period of 9 weeks.

EFFECT: method ensures cost effective and fast filtration of large volumes of grafted polyol dispersion.

17 cl, 1 dwg, 3 ex

FIELD: chemistry of polymers, chemical technology.

SUBSTANCE: invention relates to prepolymer with terminal isocyanate groups and characterizing the NCO-number value in the range 5-30 wt.-%, and representing a reaction product of excessive amount of diphenylmethane diisocyanate comprising at least 80 wt.-% of 4,4'-diphenylmethane diisocyanate and polyoxyethylene polyoxypropylene polyol of the mean molecular mass in the range 2000-10000 Da, average nominal hydroxy-functionality in the range 2-6, the content level of ethylene oxide in the range 21-45 wt.-%, and the presence of structure relating to type -PO-PO/EO-EO wherein PO-block comprises 60-90% of PO, and the ratio of terminal EO : statistically distributed EO is in the range from 3:1 to 1:3. Also, invention relates to polyisocyanate composition used for preparing polyurethanes and characterizing by NCO-number value maximally 52.5 wt.-% comprising 1-99 mass parts of the claimed prepolymer and 1-99 mass parts of other polyisocyanate per 100 mass parts of this polyisocyanate composition. Also, invention relates to a method for preparing elastic foam polyurethane from prepolymer or polyisocyanate composition corresponding to the invention as result of carrying out reaction in press-form at index in the range 70-120. Such elastic foam polyurethanes show improved stability and characterized by improved rigidity and good additional properties, for example, strength, residual compression deformation, indices of creep, elasticity, ability for vibration transferring, relative elongation and pleasant by feel. Foam materials made of such prepolymer or composition are used in furniture and automobile branches of industry in making seats, steering wheels, instrument board, furniture and mattress soft packing, and for sound damping and sound insulation.

EFFECT: improved preparing method, valuable properties of composition and material.

10 cl, 2 tbl, 3 ex

FIELD: technological processes, chemistry.

SUBSTANCE: invention is related to method for production of polyurethane foam with application of secondary waste of polyethylene terephtalate, and may be used for production of hard polyurethane foams. Polyurethane foam is produced by interaction of polyisocyanate with polyol component containing secondary waste of polyethylene terephtalate dissolved in triethanolamine or in mixture of mono-, di-, trichloracetic acids, in amount of not more than 67 wt % from total weight of polyol component. At that interaction is carried out at the ratio of polyol component : polyisocyanate as 1:1 - 1:2. Prepared polyurethane foams have good consumer properties, such as compression strength, oil-, heat resistance and reduced inflammability.

EFFECT: recycling of polymer wastes in the form of containers and package from polyethylene terephtalate, considerable reduction of polyurethane foam cost with simultaneous solution of environmental problems due to recycling of secondary polyethylene terephtalate.

16 ex

Up!