Composition for fixing wrapping articles

FIELD: chemistry.

SUBSTANCE: composition for fixing wrapping articles contains A) 1-60 wt % of at lest one resin of α,β-unsaturated polyether based on at least one unsaturated mono-, di- or tricarboxylic acid and/or substance containing molecules with mono-, di- or tricarboxylic acid groups, at least one polyol, B) 0.1-80 wt % of at least one inorganic and/or an organic-inorganic hybrid component, having functional groups for reaction with components A) and C), where said hybrid components are polymers or colloidal solutions based on silicon, titanium or zirconium and oxygen atoms, which contain hydroxyl and/or alkoxy groups and/or hydroxyalkyloxy groups and/or organic fragments, which have epoxy and/or isocyanate and/or unsaturated groups, C) 2-80 wt % of at least one monomer and/or oligomeric unsaturated component, which is styrene, vinyl toluene, hexanediol dimethacrylate, butanediol dimethacrylate and/or (meth)acrylates of products of a polyaddition reaction of ethylene oxide with trimethylolpropane capable of reaction with components A and B, and D) 0-15 wt % conventional additives, where wt % is calculated relative the total weight of the composition.

EFFECT: excellent heat conductivity properties and high level of electrical insulation along with excellent adhesion and thermal stability.

6 cl, 1 tbl, 2 ex

 

The technical field

The present invention relates to compositions for fixing the wrapping of products, in particular, the electrical windings in electrical equipment that provide excellent impregnating properties of the wrapping products, as well as extremely good electrical insulation and thermal conductivity.

The use of unsaturated polymers in compositions used for impregnation (for example, dipping, immersion, drip application or fill) wrapping products, such as electrical coils and turns, especially the windings of the magnetic wires in electrical devices, and for casting of electrical appliances, such as stators, rotors and transformers, in order to give mechanical strength and fixing it is well known in the art. You can apply different resins for these applications, which typically provide electrical isolation, stabilization of electrical windings against vibration, superior durability and protection against chemical and mechanical influences. As is becoming increasingly important in reducing the size of electrical devices, the improved thermal conductivity of the entire electric appliance is an important property, and a sealing composition plays a key role.

Insulation properties and thermal conductivity of the can is about to improve with the use of inorganic fillers, for example, titanium dioxide, silicon dioxide and aluminum. However, a sealing material containing such fillers typically are not very homogeneous. This can cause problems during storage of the composition, and may additionally lead to deterioration in the ability to penetrate into the cavity between the electrical coils, as well as to the loss of insulating properties when using an electrical appliance. The patents DE-A 2638047 and WO 2007/045633 disclose the use of filler particles having a smaller size, but still not quite homogeneous. Also the use of silica particles obtained through water ways, leads to an unfavourable inclusion of water in a sealing system and/or may cause a significant increase in the viscosity of the particles of inorganic filler that is also an adverse factor in obtaining high-quality impregnation.

It is known that the result of the application of inorganic fillers enamel wire is lengthening the life time of electric devices, see, for example, WO 00/54286, U.S. patent 4760296. Patent WO 00/54286 discloses a hybrid composition of organic-inorganic nature for electric wires, comprising chemically active particles, providing high mechanical and insulating properties under mechanical load.

With mnost inventions

This invention provides a composition for fixing wrapping products, including

A) 0-90 wt.% at least one resin α,β-unsaturated polyester and/or polyetherimide on the basis of at least one substance containing unsaturated mono-, di - or tricarboxylic acid, and/or substance containing molecules with groups of unsaturated mono-, di - or tricarboxylic acids, at least one polyol and/or, in the case of unsaturated polyetherimide, at least one imide having a 5-membered cyclic kidnie group,

C) 0.1 to 80 wt.% at least one inorganic and/or organic/inorganic hybrid component having functionality for reaction with components (A) and (C)

C) 2-80 wt.% at least one Monomeric and/or oligomeric unsaturated component capable of interacting with components a and b), and

(D) 0-15 wt.% conventional additives

where wt.% calculated relative to the total weight of the composition.

The composition according to the present invention ensures excellent properties of thermal conductivity and high electrical insulation along with excellent adhesion and thermal stability. Unexpectedly, it was found that it is possible to achieve excellent sealing properties due to low viscosity, even at high contents reorganizes the th substance.

Technical characteristics and advantages of the present invention will become quite clear to those of ordinary skill in the art after reading the following detailed description. You should take into account the fact that the particular features of the invention, which for a clear understanding of the above and below in the context of separate embodiments of the invention, can be achieved in one implementation. Conversely, various technical features of the invention, which, for brevity, described in the context of a variant of implementation, can also be obtained separately or in the form of partial Association.

Minor fluctuations in the direction of increase and decrease within numerical values can be used to achieve essentially the same results as using values within such ranges. In addition, the disclosure of these ranges is provided in the form of a continuous interval covering any value between the minimum and maximum values.

The term "typical" means known to the person skilled in the technical field.

All values or the weighted average of the molar masses given in this description are defined or should be determined by gel chromatography (GPC;polystyrene, Poperechnaya with divinylbenzene as the stationary phase, tetrahydrofuran as the liquid phase, polystyrene standards).

The term (meth)acrylic refers to acrylic and/or methacrylate in this document.

The composition according to the invention provides a chemical structure between inorganic and organic objects of the composition after vulcanization.

The composition according to the invention contains at least one closepreview and/or polyetherimide resin component (A) in the range of 0-90 wt.%, preferably 1-60 wt.%, particularly preferably 15-60 wt.%, where wt.% calculated relative to the total weight of the composition. The resin component (A) can have a hydroxyl number of less than 80 mg KOH/g, preferably lower than 60 mg KOH/g, an acid number of less than 70 mg KOH/g, preferably below 50 mg KOH/g, and the concentration of urethane groups, 0-0,1 mol/100 g of resin (A).

Component a) can be obtained by interaction

(a) at least one α,β-Ethylenediamine dicarboxylic acid, its anhydride and/or a complex ester of α,β-Ethylenediamine dicarboxylic acid, and

(b) at least one alcohol having one or more, preferably 2, 3 or 4 hydroxyl functional groups on the molecule, and

(C) in the case of polyetherimide at least one substance containing kidney group of the formula

in which the carbonyl groups are in position 1.2,

or

in which at least 2 of the 4 carbonyl groups are in position 1.2,

or

in which

R1denotes an aliphatic, cycloaliphatic or aromatic group which contains at least one reactive carboxyl or hydroxyl group or a double bond C=C, or combinations thereof,

R2denotes an aliphatic, aromatic or cycloaliphatic group containing 2-30 carbon atoms, which may also contain oxygen atoms or nitrogen,

R3denotes an aliphatic, cycloaliphatic or aromatic group, and

X denotes hydroxyl or carboxyl functional group, and

(d) possibly, one or more mono-, di - or tricarboxylic acids, which differ from (a), and

(e) possibly one or more polyether polyols and polymer polyols, and

(f) possibly one or more polyisocyanates.

The ratio of the components of the reaction from a) to f) choose a method known to a person skilled in the technical field, to 100 g of the component (A) contained 0.05 to 0.50 mole of the polymerized α,β-Ethylenediamine groups of the component (a)in the case of polyetherimide number aminosvyazannogo nitrogen in (a) of the composition is employed, at least 0.5 wt.%, preferably at least 1.5 wt.% based on component A). The average molecular weight of the component (A) is in the range of, for example, 400-5000 g/mol.

The usual α,β-Ethylenediamine dicarboxylic acids (a) are, for example, with 4-5 carbon atoms, or their anhydrides or esters. Examples are maleic anhydride, fumaric acid, citraconic anhydride or musicanova acid. It is preferable to use maleic anhydride.

Typical alcohols (b) are, for example, mono-, di - or trifunctional alcohols with a number of 2-18 carbon atoms, for example, 8(9)-hydroxytriazine[5.2.1.02,6]Dec-3-ene, 1,4-bis-hydroxymethylcellulose, 2,2-bis-(4-hydroxycyclohexyl)-propane, neopentylglycol (scientific), trimethylolpropane (TDM), Tris(hydroxyethyl)isocyanurate (THEIC) and pentaerythrit. Using triolo leads to branched structures.

Typical kidnie groups that contain the substrate (c), are chemically active derivatives of tricarboxylic acids or their anhydrides, such trimellitate anhydride, the anhydride is 3,3',4-benzophenonetetracarboxylic acid, tricarballylic acids or anhydrides of unsaturated cycloaliphatic or aliphatic dicarboxylic acids, such tetrahydrophtalic anhydride, endoethenotetrahydrooripavine anhydride or maleic EN is hydrido with aliphatic, cycloaliphatic, heterocyclic or aromatic aminoalcohols or aminocarbonyl acids. Suitable aminoalcohols are, for example, ethanolamine, propanolamine, mutanolysin, more vysokodetalnye homologues, 4-aminocyclohexanol, 4-aminobenzoyl alcohol or aromatic aminosilane alcohols phenyl ether. Suitable aminocarbonyl acids are, for example, aminouksusnoy acid, aminopropionic acid, aminocaproic acid and 4-aminobenzoic acid.

Further examples of compounds (C) are the reaction products tetracosanoic acids or their anhydrides, like pyromellitate anhydride, dianhydride benzophenonetetracarboxylic acid, dianhydride butanetetracarboxylic acid, dianhydride cyclopentanetetracarboxylic acid, with aliphatic, cycloaliphatic, heterocyclic or aromatic aminoalcohols or aminocarbonyl acids, and/or reaction products of 2 moles of tricarboxylic acids or their anhydrides, like trimellitate anhydride or anhydride is 3,3',4-benzogeneratorov acid with 1 mol of aromatic diamines, like 4,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylamine or aliphatic and a cycloaliphatic diamines, such as 4,4'-diaminodicyclohexylmethane, Ethylenediamine, Propylenediamine or an aliphatic ether of the mines. Instead of the above-mentioned diamines you can use the corresponding diisocyanates, and instead of the above anhydrides of the corresponding carboxylic acid. Preferred compounds (C)containing kidnie groups are the reaction products tetrahydrophthalic anhydride or trimellitic anhydride with ethanolamine.

Typical carboxylic acid (d) can be saturated and/or unsaturated aliphatic, cycloaliphatic and/or aromatic mono-, di-, tri - and/or tetracarbonyl acids, anhydrides and/or esters, especially alkylether having 1-4 carbon atoms in the alkyl chain. Examples are dicyclopentadienyl dimelaena, anhydride tetrahydrophthalic acid, endo-methylentetrahydrofolate anhydride, trimellitic anhydride, terephthalic acid, isophthalic acid, tetrachlorophthalic acid, hexachlorethane acid, adipic acid, glutaric acid, sabotinova acid, oligo - and/or polymeric fatty acids.

Typical examples of the compounds (e) are polyethylene glycol, polypropyleneglycol, polytetrahydrofuran, the reaction products of addition of ethylene oxide or propylene oxide to a multifunctional alcohols with 2 to 4 hydroxyl groups such as glycerin, trimethanolamine, trimethylolpropane, triethanolamine or pentaerythritol or mnogofunkcionalniy with 2-4 hydroxyl groups of catechol, hydrochinone, bisphenol a or bisphenol F, additional examples are hydroxyquinoline Homo - or copolymers obtained by radical polymerization, hydroxypentanal polycarbonates or hydroxypentanal polyesters with mass-average molecular weight 400-10000 g/mol.

The polyisocyanates (f) are preferably polyisocyanates containing at least 2 or more isocyanate groups, for example, aliphatic, cycloaliphatic or aromatic diisocyanate with a number of 6-18 carbon atoms, such 1,6-hexamethylenediisocyanate, 2,4'- and 4,4'-dicyclohexylmethane, 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate, 2,2,3 - and 2,4,4-trimethylhexamethylenediamine, cyclohexanone 1,3 - and 1,4-diisocyanate, 2,4 - and 2,6-colordistance, 2,4'- and 4,4'-diphenylmethanediisocyanate, polyisocyanates obtained by the reaction of MDI with the stoichiometric quantity of polyols or trimerization products of the above polyisocyanates, or substances with a biuret structure obtained from the above-mentioned polyisocyanates, or substances with uretdione structures obtained from the above-mentioned polyisocyanates. Preferred are aromatic isocyanates type 2,4'- and 4,4'-difenilmetana diisocyanates and mixtures thereof.

In that case, when you use all the components from (a) is o (f), component (f) preferably used in an amount such that the content of urethane groups of the unsaturated polyester or polyetherimide A) was less than or equal to 0.05 equivalents per 100 g of component A).

Polyetherimide or polyol (A) can be obtained by methods that are well known to the person skilled in the technical field, for example, by polyesterification when heated components, for example, to temperature 120-240°C in the melting process in an atmosphere of inert gas or by way of azeotropic boiling mixture, optionally in the presence of catalysts polyesterification.

Ratio of components (a)-(f) choose a method known to a person skilled in the art to mass-average molar mass of the obtained resin (A) was in the range of 400-5000 g/mol, preferably 600-3000 g/mol.

Component B) of the composition according to this invention can be chemically active substance, that is, when the rubber sealing resin capable of chemical bonding of organic components (A) and/or (C) with the formation of inorganic/organic structures and/or may be inorganic polymeric substance having reactive groups that when the rubber composition impregnating resin capable of chemical bonding with organic components (A) and/or (C).

Examples of Henichesk the active substances are compounds of at least one metal, the metalloid and/or non-metal, such as aluminum, phosphorus, sulfur, boron, magnesium, silicon, selenium, germanium, zinc, yttrium, cerium, vanadium, hafnium, gallium, lead, Nickel, tantalum, titanium, zirconium, chromium, manganese, tin or bismuth. Metals, metalloids, or nonmetals chemically associated with at least one atom of carbon, oxygen, nitrogen, sulfur and/or halogen, which are part of the chemical groups such as-OH, -OR (where R represents an aliphatic, cycloaliphatic, unsaturated or aromatic organic group), -OC(O)R (where R represents an aliphatic, cycloaliphatic, unsaturated or aromatic organic group), -NH2, Other (where R represents an aliphatic, cycloaliphatic, unsaturated or aromatic organic group), -NRR' (where R and R' represent aliphatic, cycloaliphatic, unsaturated or aromatic organic group and may be the same), -N[C(O)R]R' (where R and R' represent aliphatic, cycloaliphatic, unsaturated or aromatic organic group and may be the same), -N[C(O)R][C(O)R'] (where R and R' are aliphatic, cycloaliphatic, unsaturated or aromatic organic group and may be the same), -SH, -SR (where R represents an aliphatic, cycloaliphatic, unsaturated silt is an aromatic organic group), -SC(O)R (where R represents an aliphatic, cycloaliphatic, unsaturated or aromatic organic group). The oxygen atoms can be replaced or partially replaced by sulfur atoms. Preferred are compounds of at least one atom of silicon, titanium and/or zirconium, associated with at least one hydroxy-group, alkoxygroup and/or organic residues having unsaturated groups.

Examples of the inorganic polymeric substances are inorganic linear or branched polymers or oligomers, for example, at least one metal oxide, metalloid and/or non-metal, such as aluminum, phosphorus, sulfur, boron, magnesium, silicon, selenium, germanium, zinc, yttrium, cerium, vanadium, hafnium, gallium, lead, Nickel, tantalum, titanium, zirconium, chromium, manganese, tin or bismuth. Metals, metalloids or non-metals are chemically bound to atoms of carbon, oxygen, nitrogen, sulfur and/or halogen in forming polymers; these polymers are selected from, for example, silicones, poly(alkoxy)silicates, poly(hydroxy)silicates, poly(alkoxy)titanate, poly(hydroxy)titanate, poly(oxo)Metallistov, poly(alkoxy)titanate, poly(hydroxy)titanate, poly(alkoxy)zirconate, poly(hydroxy)zirconate, poly(hydroxy)tin, poly(alkoxy)tin. These polymers can be somethingpositive and can be used as a colloidal solution type of colloidal titanium dioxide, colloidal Zirconia, colloidal tin dioxide or colloidal silicon dioxide.

Preferred components B) are polymers or colloidal solutions based on silicon atoms, titanium or zirconium and oxygen, which contain hydroxyl and/or alkoxygroup and/or hydroxyalkyloxy and/or organic fragments, which have epoxy and/or isocyanate and/or unsaturated groups, which may also be polymeric in nature, for example, poly(epoxyacrylate) or unsaturated polyesters. In addition, polymers or colloidal solutions of the two components can be modified directionspanel groups of the type, for example, methyl, ethyl, butyl, octyl or decyl for improved compatibility with components (A) and (C).

Component b) can form a covalent bond with the component (A) and/or component (C) through, for example, esterification, transesterification, radical polymerization or polyprionidae, in the process of vulcanization (cross-linkage) of the composition according to this invention.

Component (C) has ethyleneamines structure having one or more vinyl or allyl double bonds, which are radically polymerized. Examples are styrene, vinyltoluene, p-methylsterol, tert-butalbiral, divisiveness is l, N-vinyl pyrrolidone, hydroxybutyl vinyl ether, potentialenergy ether, triethylene glycol divinely ether, dellroy ether talavou acid, dellroy ester of fumaric acid, triethylphosphate, triallylisocyanurate, gallivants, gallivanter A three - or tatrallyay ether of pentaerythritol. Component C) may also be a complex ester of acrylic or methacrylic acid type hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, phenoxyethyl(meth)acrylate, Dicyclopentadiene(meth)acrylate, butanediol(meth)acrylate, hexanediol(meth)acrylate, dipropyleneglycol(meth)acrylate, trimethylolpropane - di - and tri(meth)acrylate, pentaerythritol di - and tri(meth)acrylate, (meth)acrylates epoxy resins, (meth)acrylate reaction products polyaddition of ethylene oxide or of propylene oxide with polyols, for example, or trimethylolpropane the pentaerythritol, and (meth)acrylate, oligo(ethylene glycol) or oligo(propylene glycol). Preferred examples of (C) are styrene, vinyltoluene, hexaniacinate, potentialtarget and (meth)acrylate reaction products polyaddition of ethylene oxide with trimethylolpropane or mixtures thereof.

Component (C) up to 50 wt.% may consist of monomers polymerized with groups of type bis-alkylation maleic or fumaric acid in which the alkyl groups contain 1-4 atom at which laroda, or type mono - or bis-maleic imides (see also the patents DE-A-2040094, DE-A-2719903, DE-A-3247058 and EP-A-0255802).

Component (D) of the present invention contains conventional additives known to the person skilled in the technical field, for example, diluents, plasticizers components, accelerators, for example, metal salts, substituted amines; initiators, for example, photoinitiator, such as chlorinated photoinitiator, aromatic ketones, a hydroxyalkyl felony, initiators, such as peroxides, hydroxyperoxide, cloperastine, initiators that react to heat, such as C-C-labile 1,2-substituted tetraphenylmethane having, for example, the formula YPh2C-CPh2Y, where Ph: phenyl, Y: -OH, -OCH3, -OC6H5, -CH3, -CN, -NH2, -Cl or-OSi(CH3)3; stabilizers (inhibitors), for example, hydrochinone, quinones, type inhibitors of the quinone inhibitors of the type of phenol, organic metal salts and/or sterically blocked aliphatic or aromatic amines; alkyl phenols, ethers of alkyl phenols, prepodavatel and agents improve the flowability. To regulate special properties, for example, the speed of vulcanization, surface hardness and smoothness of the surface, you can add additional curable oligomers, polymers or copolymers, for example, liquid poly(BUTADIENES) type (meth)acrylate polybutadienes, epoxy(m is t)acrylate, urethane (meth)acrylates, polyester (meth)acrylates, unsaturated polyesters and polyetherimides different from component A). Additional additives may be reinforcing agents bolognapadova type structure of carbon, glass, polyamide, polyester, polyacrylonitrile fibers, polyaramid threads, polyamidimide or polycarbonate fibers or fillers of the type of chalk, talc, aluminum hydroxide, silica flour, slate flour, clay or microbolometer; organic and inorganic pigments, paints, thixotropy agents, and agents that reduce shrinkage. The amount of such additives in the composition depends on the respective application and known to the person skilled in the technical field.

Components a), B), C) and (D) can be mixed as-prepared materials in any sequence. Components a), B) and/or D) can be dissolved in (C) and subsequently mixed together. It is possible to prepare the components a) and b) in one stage, for example, by obtaining the unsaturated polyester in the presence of a colloidal solution. This mixture can then be dissolved in (C) and mixed with (D) or in solution (D) in C).

The use of a composition according to this invention can be carried out by methods known in the art, for example, by impregnation, dipping, impregnation in vacuum or drip impregnation. In ways which the impregnation by dipping, the substrate is immersed in the composition for a certain period of time or reach across the composition. The substrate can be heated to temperatures below the temperature of vulcanization of the composition before dipping. By way of impregnation in vacuum the substrate is placed in a closed container, put the vacuum, then the composition according to this invention is fed into the container. Drip method of impregnation composition according to this invention may be filled with, for example, the nozzles on the rotating substrate.

It may be useful to heat the substrate to a temperature below the temperature of vulcanization of the composition for improved penetration. Preheating can be carried out by methods known in the art, for example, by passing an electric current or in the oven, for example, when it is saturated or before applying impregnation.

After applying a sealing composition according to this invention, it can be vulcanized. This can be accomplished, for example, radical polymerization, and to this end it is useful to add radical initiators as part of component D) to the composition of this invention. The vulcanization can be conducted by heating the impregnated substrate and/or irradiating the impregnated substrate with radiation of high energy.

Heat for vulcanization can be obtained, for example, the transmitting current is via the coils; it is also possible to use the oven or sources of infrared (IR) or near infrared (NIR) radiation. The temperature of the heating (the temperature of the object) may be in the range of 80-180°C. Typical vulcanization time is, for example, 1-180 minutes, in the case of NIR radiation vulcanization can occur quickly, for example, less than 1 minute. The composition according to the invention can also be vulcanized at low temperatures, with the use of additives such as aromatic amines or salts of cobalt, copper, cerium or vanadium.

The coating according to this invention can also be vulcanized using radiation of high energy, for example, ultraviolet (UV) light or electron beam. When using UV cured you can apply the appropriate initiators, for example, photoinitiator, which absorb light with a wavelength in the range of 190-450 nm.

It's also possible to combination of photoinitiators with thermally labile initiators, for example, the combination of vulcanization by heating and UV curing.

The high energy radiation can be used to accelerate the vulcanization process, and curing the applied composition in depth, depending on the thickness of the impregnated layer. UV radiation and electron beam can also be used to cure only the surface ol Petawawa the compositions of this invention on a substrate, in order to reduce emissions of volatile monomer composition on subsequent thermal stage.

Unexpectedly, it was found that it is possible to add a composition according to this invention as supplementary material in the amount of 5-50 wt.% to a vulcanized polymerized to oligomers, polymers and copolymers, which leads to the improvement of the mechanical strength properties of heat transfer and electrical insulation.

The composition according to this invention can be used in multiple applications. They are particularly suitable for fixing the wrapping of products, for example, collapsed in the Bay of substrates, in particular, the wires of the windings, such as magnetic wire in electrical equipment type of rotors, stators or transformers, or winding the metal foil in the electricity sector or the substrate of the windings on the basis of glass fibers, plastic fibers or plastic foil, and can be used for impregnation of fabrics.

The invention will be described with reference to the following examples.

EXAMPLES

Example 1

Component (A)

Component a is an unsaturated complex polyester-based maleic anhydride, castor oil, tetrahydrophthalic anhydride, ethanolamine and neopentyl glycol (acid number of 12 mg KOH/g, the equivalent weight is and double bonds 500 g/mol).

Obtaining compositions impregnating resin

1.1 the Current track

65 parts of a component (A) is heated to 100°C and dissolved in 35 parts perekreditovanija of the reaction product of trimethylolpropane and ethylene oxide (molar ratio 1:4, part C). Upon cooling to <40°C, add the 1.4 parts of a radical initiator (C-C (espiacally ether, component (D) and mix well.

1.2 Composition of the present invention

65 parts of a component (A) is heated to 100°C and dissolved in 70 parts of 50% colloidal solution Methacrylonitrile silica (component b) in perekreditovannost the reaction product of trimethylolpropane and ethylene oxide (molar ratio 1:4, part C). Upon cooling to <40°C, add 1,9 part of a radical initiator (C-C (espiacally ether, component (D) and mix well.

Example 2

The vulcanization method and its results

Copper conductors covered songs impregnating resin at room temperature (20-22°C) to obtain a film thickness of 40 μm. The vulcanization was carried out at 160°C for 1 hour. Covered copper conductors squeezed together and connected to the frequency inverter. Covered copper conductors were then subjected to the action of corona discharge (2,5 kV double amplitude, 20 kHz). Measured time of the destruction of the insulating layers (the shorter zamykanie).

Table
Test results
ExampleThe time of life when exposed to corona discharge
1,11 hour 10 minutes
1,2>1000 hours

1. The composition for fixing wrapping products, including
(A) 1-60 wt.% at least one resin α,β-unsaturated polyester on the basis of at least one unsaturated mono-, di - or tricarboxylic acid and/or substance containing molecules with groups of mono-, di - or tricarboxylic acids, at least one polyol,
B) 0.1 to 80 wt.% at least one inorganic and/or organic-inorganic hybrid component having a functional group to interact with components a) and C), where these hybrid components are polymers or colloidal solutions based on silicon atoms, titanium or zirconium and oxygen, which contain hydroxyl and/or alkoxygroup, and/or hydroxyalkyloxy, and/or organic fragments, which have epoxy and/or isocyanate, and/or unsaturated groups;
C) 2-80 wt.% at least one ponomernogo/or an unsaturated oligomeric component, which is a styrene vinyltoluene, hexaniacinate, potentialtarget and/or (meth)acrylate reaction products polyaddition of ethylene oxide with trimethylolpropane, able to interact with components a) and B), and
(D) 0-15 wt.% conventional additives
where wt.% calculated relative to the total weight of the composition.

2. The composition according to claim 1, where component (A) has srednecenovogo molecular weight in the range of 400-5000 g/mol.

3. The composition according to any one of claims 1 and 2, where component b) is chemically active substance, i.e. a substance capable of curing the composition of the impregnating resin to enter into a chemical bond with the organic components a) and/or (C) with the formation of neolane-organic structures.

4. The composition according to any one of claims 1 and 2, where component b) is an inorganic polymeric substance having reactive groups which are capable in the process of vulcanization of the composition impregnating resin to enter into a chemical bond with the organic components a) and/or (C).

5. The method of attachment of magnet products, including stage
(a) impregnation of the winding products by applying a composition according to claim 1, and
(b) curing the applied composition.

6. The method according to claim 5, where the wrapping of the products are electric winding.



 

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1 cl, 1 dwg, 1 tbl, 4 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to conducting polymer blend, which is prepared by selecting at least two mutually immiscible polymers and mixing them until into blend so that at least one of polymers forms continuous three-dimensional phase throughout the volume of blend. Thereafter, conducting metal-containing filler is added to blend. Difference in surface tensions between polymer(s) forming continuous three-dimensional phase and other polymers constituting polymer blend is equal at least 2 mN/m. Above-mentioned at least two polymers are selected from following polymer pairs: pair polyamide PA6 and polymer selected from group consisting of PA12 and polyolefin; pair PA66 and polymer selected from group consisting of PA6, polymethylmethacrylate, polycarbonate, polyethylene terephthalate, styrene/acrylonitrile copolymer, polystyrene, PA12, polyolefin, liquid-crystalline polymer, and polyoxymethylene; pair polybutylene terephthalate and polymer selected from group consisting of PA6, polymethylmethacrylate, polycarbonate, styrene/acrylonitrile copolymer, polyethylene terephthalate, polystyrene, PA12, polyolefin, liquid-crystalline polymer, and polyoxymethylene; pair polycarbonate and polymethylmethacrylate; pair polyethylene terephthalate and polymer selected from group consisting of polycarbonate, polymethylmethacrylate, polystyrene, PA6, PA12, and polyolefin; pair polymethylmethacrylate and polymer selected from group consisting of PA6, PA12, and polyolefin; pair polyoxymethylene and polymer selected from group consisting of polycarbonate, polymethylmethacrylate, polystyrene, PA6, PA12, and polyolefin; pair styrene/acrylonitrile copolymer and polymer selected from group consisting of polystyrene, PA6, PA12, and polyolefin.

EFFECT: enabled preparation of polymer blend with low content of conducting filler showing sufficient conductivity and good mechanical properties.

8 cl, 2 dwg, 4 tbl, 2 ex

FIELD: preparation of compositions for cables filling.

SUBSTANCE: the invention is pertaining to preparation of compositions for filling the cables used in the field of a distant data transmission. Prepare a composition containing (in mass %): a mineral or a synthetic oil - 70-90, the hydrogenated block of styrene and butadiene copolymer with radial structure - 2-15, polyethylene wax - up to 12. The block of the copolymer can be synthesized using silicon tetrachloride or stannic chloride. The technical result of the invention consists in improvement of the index of compositions drops-protection and a stability augmentation.

EFFECT: the invention ensures improvement of the index of compositions drops-protection and a stability augmentation.

7 cl, 2 tbl, 3 ex

The invention relates to the field of electrical engineering, namely, cable technology, and can be used for the manufacture of insulation in different brands of cables, in particular for insulation flexible cables instead of the rubber insulation
Antifriction coat // 2345110

FIELD: chemistry.

SUBSTANCE: antifriction coat can be used in gear pumps for reducing friction and wear resulted from corrosion or mechanical effects in tribojoints under effects of chemically active reagents, high temperature and loads on engaged parts to ensure required stable gaps between the said parts. The antifriction coat consists of three layers, i.e. inner, intermediate and upper layers. Note here that the inner layer represents a composition comprising 90 wt % of a polyimide varnish and 10 wt % of chromophosphatealuminic bond, the intermediate layer being made from 100 wt % of a pure polyimide varnish. Finally, the top layer represents a composition containing 90 wt % of polyimide varnish, 8 wt % of colloid graphite and 2 wt % of lecithin. Thickness of the aforesaid inner layer is within the limits of from 8 up to 10 mcm, thickness of the intermediate layer is within the limits of from 16 up to 20 mcm, thickness of the top layer is within the limits of from 24 up to 30 mcm, while the required thickness of the coat is provided by grinding the top layer.

EFFECT: longer life of friction assembly units and parts operated in chemically active environments.

2 tbl

The invention relates to the chemistry of polymers, in particular a process for the production of thermostable polymers of polybenzamidazole used as coatings, molding compositions, adhesives for laminates, adhesives with high physical-chemical and mechanical properties

The invention relates to electrical insulating varnish for insulating electrical conductors, providing high temperature pressing of insulation (not below 320oC) and a temperature index of not lower than 180

Liquid hardening // 2447114

FIELD: chemistry.

SUBSTANCE: invention relates to curing agents for air-drying alkyd-based resins, coating compositions, such as paint, varnish, wood stain, inks and linoleum floor coverings. Described is a curable liquid medium containing a) from 1 to 90 wt % of an alkyd-based resin and b) from 0.0001 to 0.1 wt % of a siccative in form of an iron or manganese complex with a tetradentate, pentadentate or hexadentate nitrogen donor ligand.

EFFECT: said siccative has high activity and enables hardening of compositions at relatively low concentration in a curable liquid medium.

19 cl, 8 tbl, 5 ex

FIELD: metallurgy.

SUBSTANCE: binding consists of cross-linking agent and branched poly-ether with partially remote functional groups with acidic functional groups. Said branched poly-ether consists of at least one multi-functional component, of at least one di-functional component reaction capable relative to a functional group of multi-functional component and at least one mono-functional component containing fat acid. Temperature of poly-ether vitrification is 40°C or more.

EFFECT: production of binding applicable for compositions of powder coating where binding improves corrosion resistance.

12 cl, 3 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following in wt %: 16-23 film-forming agent; 38-40 mixed pigments; 2.0-3.0 organic complexing agent - tanning and derivatives thereof; 1.0-2.0 inorganic filler - talc; 3.0-4.0 mixture of C2-C4 alcohols and an organic solvent - the rest. The film-forming agent is 12-15 wt % alkyd varnish and additional 4-8 wt % synthetic chlorinated rubber. The mixed pigments are in form of a mixture of zinc oxide, zinc powder and micaceous iron. The mixture of alcohols contains ethyl alcohol, butyl alcohol and isobutyl alcohol in ratio 1.0:1.0:1.4. The invention enables to obtain compositions with service life of coatings of at least 10-15 years.

EFFECT: coatings have good impact properties and high rate of drying, priming composition does not require surface mechanical pre-treatment in order to remove scales and rust.

6 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following, wt %: alkyde primer 90-98, organosilicon amide of perfluorocarboxylic acid of formula C3F7OCF(CF3)CF2OCF(CF3)CONH(CH2)3Si(OC2H5)3 1-5 and 1-5 product of reaction of boric acid, diethanolamine and fatty acid of plant oil. The fatty acid of plant oil is selected from oleic acid, linoleic acid and linolenic acid, in molar ratio of 1:4:2, respectively.

EFFECT: invention enables to obtain anticorrosion coatings with good physical-mechanical and water-, oil- and gasoline-resistant properties.

3 tbl, 5 ex

Composite oil paint // 2415897

FIELD: chemistry.

SUBSTANCE: invention is used in shipbuilding, construction works in shafts, for repair works on metallurgical factories, for painting concrete and plastered structures, for painting metal structures, wooden structures and slate roofing. The paint contains components in the following ratio in wt %: film-forming agent 50-90, titanium dioxide and/or chalk 0.1-32.0, cement and/or cement dust 0.1-30.0, siccative 0.5-5.0, microtalc and/or micromica or sand and/or lime or lime milk and/or flue ash and/or microcalcium and/or sulphanol and/or iron oxide - the rest. The film-forming agent contains components in the following ratio in wt %: pentaphthalate and/or glyphtal lacquer or mixture thereof with nitrocellulose and/or perchlorovinyl and/or ethylcellulose and/or coal-tar varnish 1-55.0, drying oil or masut or bitumen 1-45.0, bustilat and/or liquid glass 1-10.0, water and/or nefras and/or solvent and/or benzine and/or solvents 647, 646, 650, 651 3-20.0, sulphanol or butyldiglycol - the rest.

EFFECT: paint film has good adhesion to surfaces, coating does not crack during bending and sharp change in temperature, paint film has high resistance to water, acid, alkali, benzene, the paint can be applied on a rusty, oily or wet surface, does not form a dried up film during storage and is environmentally safe.

3 cl, 4 tbl, 70 ex

FIELD: chemistry.

SUBSTANCE: invention relates to preparation of surface coating solutions which contain boehmite. The surface coating solution is a latex paint and contains a trituration solution, a polymer emulsion and a solvent. The trituration solution is prepared using an active solution which contains a base in form of an aqueous solution and boehmite particles contained in the base. The boehmite particles are anisotropic moulded particles having mould ratio of 3:1 and are activated by substances selected from a group which includes ammonium hydroxide, alkali- or alkali-earth metal salt, nanoclay or colloidal silica. The surface coating solution has surface spreading and distribution with formation of a uniform film of at least 6 mil, and sag resistance of over 7 mil or surface spreading and distribution with formation of a uniform film of over 6 mil, and sag resistance of at least 7 mil. Described also is a method of preparing the surface coating solution involving the following operations: activation of boehmite particles with substances selected from a group which includes ammonium hydroxide, alkali- or alkali-earth metal salt, nanoclay or colloidal silica in order to form a water-based active solution; preparation of a trituration solution using the active solution; and preparation of a surface coating solution using the trituration solution, polymer emulsion and solvent.

EFFECT: solution enables to obtain coating with good technical properties.

42 cl, 2 tbl, 3 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a coating compositions. The coating composition contains a thermally crosslinking film-forming resin binder or resin binders, a polymer or copolymer levelling agent having molecular weight between 1000 and 100000 g/mol (Da). The polymer or copolymer levelling agent is obtained through polymerisation in the presence of an alkoxyamine initiator/regulating compound or monomer. The monomer is selected from a group of acrylate or methacrylate compounds. The said copolymer levelling agent is obtained from a composition which contains an ethylene-unsaturated monomer. The polymer levelling agent used is poly-tert-butyl acrylate or poly-tert-butyl methacrylate. The coating is obtained by depositing the composition onto a substrate and applying heat energy or electromagnetic radiation.

EFFECT: use of the said polymer or copolymer as a levelling agent in coating compositions enables to obtain smooth coating for surfaces.

3 cl, 21 ex, 10 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to paint materials, particularly to a paint composition used for protective-decorative coating metal surfaces. The protective-decorative paint contains 21-45 wt % alkyd resin based film forming agent, 35-55 wt % specularite with high content of Fe2O3 and particle size less than 30 mcm as pigment, 0.5-1.5 wt % drying accelerator, 1-2 wt % rheological additive, 4-12 wt % filler and organic solvent - the rest. The protective-decorative paint preferably contains film-forming agent in form of modified alkyd film-forming agent, and the rheological additive in form of a surfactant based on TROYSOL fatty amine. The protective-decorative paint also contains a colouring pigment in amount of 0.5-4.5 wt %.

EFFECT: disclosed paint enables to obtain a coating with good protective properties: abrasive wear resistance, corrosion resistance and good decorative effect owing to obtaining a coarse finish with metallic lustre.

5 cl, 2 tbl, 7 ex

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