Sealing material with base, methods of its industrial production and its application

FIELD: textile, paper.

SUBSTANCE: textile fabric joined with a binding system comprises the following, wt %, dry weight: 10-90 water dispersion of polymerizates on the basis of conjugated aliphatic dienes and vinyl aromatic compounds, 10-90 starch, 0-10 additives, where the fabric is a nonwoven material.

EFFECT: invention makes it possible to improve the ability of fabrics to preserve dimensions under high temperatures with preservation of flexibility, ageing and stability properties.

26 cl, 1 tbl

 

The invention relates to new binder system and its application in textile fabrics and products containing binder system, or textile fabrics that contain it.

Textile fabrics, especially those based cushioning materials for the industrial production of film roofing must meet various requirements. In particular, having a basis of cushioning materials must have sufficient mechanical stability, such as good resistance to perforation and good tensile strength, taking place, for example, processing such as coating with bitumen, or when flooring. In addition, high temperature resistance, for example, during coating by bitumen or stability against radiated heat and resistance to spreading the fire. Thus, there were many attempts to improve existing with the basis of cushioning materials in relation to these requirements.

One way of improvement is to combine non-woven fabrics of synthetic non-woven base with reinforcing fibers, such as fiberglass, in order to improve their mechanical stability. Examples of such insulating materials can be found in documents GB-A-1517595, DE-Gbm-77-39489, JP-A-81-5879, EP-A-160609, EP-A-176-847, EP-A-403403 and EP-A-530769. Non-woven material the ial group and the reinforcing fibers are combined in this modern technology, or sticking with the aid of binders, either by igloprobivnye layers made of different materials.

Another way of improvement is in the industrial production of composite materials plexus or by welding fusion (DE-A-3347280, US-A-4472086, EP-A-333602 and EP-A-395548) or to carry out the unification of the reinforcing fibers in the form of two-component fibers of the nonwoven cloths on the basis of synthetic fibres (US-A-4504539 and EP-A-0281643).

Technical textile fabric known state of the art, are good for specific application properties, however, still remains a constant challenge even improvements to these products, if possible, without increasing production costs.

Thus, the task of the present invention was to provide improved textile fabric, especially suitable as a base layer material for asphalt, roofing and insulating materials with coating, and which can be produced in commercial quantities at a reasonable price. An additional task of the invention was to make sure that the textile fabric can coat well-known and traditional methods.

Surprisingly, in the present work it was found that the textile fabric, strengthened by means of the PTO binder system, had a superior ability to keep the size at high temperatures and that, despite the water absorption characteristics of aging, flexibility or stability was not significantly worsened.

Thus, an object of the present invention is a textile fabric, strengthened by means of a binder system containing:

a) from 10 to 90% of the mass. aqueous dispersion of polymerization on the basis of conjugated aliphatic dienes and vinyl aromatic compounds,

b) from 90 to 10% of the mass. starch,

c) from 0 to 10% of the mass. additives

with quantities in percentages by weight relative to the dry mass of the binder system, i.e. without water.

Another object of the present invention is a binder system used in the invention.

Surprisingly, the textile fabric produced by the linking system according to the invention, has a higher ability to maintain size during heat treatment in comparison with textile fabrics, which are connected with one component a). Also unexpectedly, that the stability and aging characteristics remain unchanged, although the person skilled in the art would expect their deterioration.

Textile fabric, strengthened according to the invention, improved stability, aging characteristics and flexibility on sravnenie the textile fabric, containing only one component b) as a binder.

Partially using starch as a substitute, you can implement significant cost reduction. Additionally, it is not contain formaldehyde binder system is obtained without the necessity to prevent the violation in the product properties. Surprisingly, the properties of the product even better.

As such, the aqueous dispersion of polymerizate based on conjugated aliphatic dianah and vinyl aromatic compounds used according to the invention, are well known. Suitable dispersions and methods of industrial production are described, for example, in DE-A-2602445, DE-A-2602444 and US-B-3575913.

Commonly known emulsifiers or protective colloids can be added in order to stabilize the aqueous polymer dispersion. Specialist in this field they are known (Houben-Weyl, Methods der org. Chemie, vol. XIV/1 , 1961, Stuttgart). Examples of emulsifiers are polyalkyleneglycol, sulfonated paraffin hydrocarbons, higher alkyl sulphates (for example, valium), salt of the alkali metal fatty acid, such as sodium stearate or sodium oleate, complex palefire sulfuric acid and ethoxylated alcohols, fatty acids, salts, esters and complex profirov of alkylpolyoxyethylene, salt from sulphonated alkylaromatic substances,such as dodecylbenzenesulfonate sodium, ethoxylated C4-C12-allylphenol and products of sulfonation, as well as esters sulfonterol acid. Examples of protective colloids are alkylhydroxylamines, partially or fully hydrolyzed polyvinyldene and their copolymers, acrylic acid, homopolymers and copolymers and their partially neutralized salts, copolymers of acrylamide, copolymers of polyacrylate and their salts, carboximetilzellulozu, such as carboxymethylcellulose and its salts.

Moreover, the polymer dispersion may contain carboxyl groups introduced into the polymer to stabilize.

Aqueous dispersions used according to the invention is usually produced by emulsion polymerization:

a) from 20 to 80 mass parts of conjugated aliphatic dienes,

b) from 20 to 80 mass parts of the vinyl aromatic compounds,

c) from 0 to 10 mass parts Ethylenediamine carboxylic acids and/or dicarboxylic acids,

d) from 0 to 20 mass parts of NITRILES Ethylenediamine carboxylic acids

in the presence of water, emulsifiers and water-soluble catalysts.

The content of the emulsifier is usually from 1 to 5 mass parts relative to 100 mass parts of components a) to d)).

Preferred dispersions can be obtained by emulsion polymerization of from 25 to 65 who Usovich parts component a), from 25 to 65 mass parts of component b), from 0.1 to 6 mass parts of component c) and/or from 0.1 to 15 mass parts component (d).

Particularly preferred dispersions contain a maximum of 5 mass parts Ethylenediamine carboxylic acids and/or dicarboxylic acids, especially a maximum of 3 mass parts Ethylenediamine carboxylic acids and/or dicarboxylic acids, especially most preferably, NetIdentity carboxylic acids and/or dicarboxylic acids containing acids mentioned above, as well as their derivatives.

Particularly preferred dispersions contain a maximum of 5 mass parts of NITRILES Ethylenediamine carboxylic acid, especially a maximum of 3 mass parts of NITRILES Ethylenediamine carboxylic acids, particularly most preferably NITRILES NetIdentity carboxylic acids.

Butadiene, isoprene, pentadiene-1,3, dimethylbutadiene and/or cyclopentadiene preferably considered as a conjugated aliphatic dienes (component a)).

Styrene, a-methylsterol and/or vinyltoluene particularly mentioned as vinylaromatic compounds (component b)).

α, β-monomethylethanolamine mono - and dicarboxylic acids with 3 to 6 C-atoms, such as acrylic acid, methacrylic acid, maleic acid, fumaric acid and taconova to the slot, preferably used as Ethylenediamine carboxylic acids and/or dicarboxylic acids (component c)).

Acrylic nitrile and/or methacrylic nitrile specifically mentioned as NITRILES Ethylenediamine carboxylic acids.

Systems that are usually used in emulsion polymerization, add as catalysts. Such water-soluble systems, such as peroxides and azo compounds known to the person skilled in the art. Usually water-soluble catalysts are added in amounts of from 0.1 to 2.0% wt. relative to the total weight of the polymerized monomers.

In addition, the known molecular weight regulators and other AIDS, such as complexing agents for the excitation of metal ions, or inhibitors, such as simple onomatology ether of hydroquinone, can be added during emulsion polymerization (see Houben-Weyl, Methods der organischen Chemie, vol. XIV/1 , pp. 297 ff., 1961 , Stuttgart; Hans-Georg Elias; Makromoleküle; 1990; Hüttig&Wepf Verlag, Basel, Heidelberg, New York).

As the unsaturated carboxylic acid and/or dicarboxylic acid (component c) is used for the polymerization, it will be necessary neutralization of the bases.

The solids content of the dispersions used according to the invention is from 30 to 70 wt. -%, preferably from 35 to 68 wt. -%, particularly preferably from 40 to 67% of the mass. (defined what s in accordance with DIN EN ISO 3251).

The viscosity of the dispersions used according to the invention is from 10 to 2200 MPa·s, especially from 10 to 500 MPa·s, particularly preferably from 15 to 300 MPa·s (determined in accordance with DIN EN ISO 3219 at 23°C).

The polymer dispersions used according to the invention preferably represent an anionic dispersion, optionally, preferred are buttoncheck and/or thermally stitched dispersion. Such thermally stitched dispersion, which are sewn together at a temperature in the range from 120°C and 200°C are preferred. Buttoncheck dispersion can be partially crosslinked, especially if the amount of water removed from the aqueous dispersion.

The dispersions used according to the invention are sold under such names as Synthomer (Synthomer Ltd.), Lutofan® or Styrofan® (BASF AG), SRG Types (Dow Chemicals) and Plextol SBV Types (PolymerLatex).

The starch used according to the invention, are not subject to any restriction, but they must be compatible with the aqueous polymer dispersion and also with binder liquid. Suitable starches are natural - so-called - native starches and modified starches such as cationic or anionic starches or starch derivatives (so-called chemically modified starches). Generally, the preferred starches with sufficient solubility in cold and/or hot environment the E.

The group of starches that can be used in the context of the invention, contains starches extracted from plant materials. They include, among other things, the starches from tubers, such as potatoes, cassava, Maranta, Yam, from seeds, such as wheat, corn, rye, rice, barley, millet, oat grain, sorghum ordinary, from fruits, such as chestnuts, acorns, beans, peas, and other legumes, bananas, as well as vegetable pulp, such as sago palms.

Starches that can be used in the context of the invention, essentially consists of amylose and amylopectin with the change of the quantitative ratios.

Molecular weight starches, applicable according to the invention can vary within a wide range. Starches consisting essentially of a mixture of amylose and amylopectin, preferably have a molecular mass Mwin the range from 5×102up to 1×108, particularly preferably from 5×104up to 1×107.

In addition to the natural starches of plant origin are equally preferred starches are chemically modified enzyme was extracted, recombinant origin or produced by biotransformation (Biocatalysis).

The term "Biocatalysis" is also used as a synonym for the term "biotransformation".

"Henichesk the modified starches" is defined as starches, whose properties were chemically modified in comparison with natural properties. They essentially get through transformation analogues of the polymer, where the starch is treated with mono-, bi - or polyfunctional reagents or oxidizing agents. In this method, preferably, the hydroxyl groups of starch modify through education simple ester, formation of ester or selective oxidation; or the modification is based on radically initiated graft copolymerization amenable copolymerization of unsaturated monomers with the main chain of starch.

A particular chemically modified starches, among other things, include esters of starch, such as xanthates, acetates, phosphates, sulfates, nitrates, ethers of starch, such as nonionic, anionic or cationic ethers, starches, oxidized starches, such as dialdehyde starch, carboxymethyl, starches, destructible persulfate and similar substances.

Language use according to the invention "enzymatic starch" refers to starch that is extracted from fermentative processes using natural organisms, such as fungi, algae or bacteria, or which can be extracted when activating and using enzymatic processes. Examples of starches, is received in enzymatic processes, include, among other Arabian gum and related polysaccharides (Gellan gum, ghatti gum, gum karaya, tragacanth gum), xanthan gum, emulsan, ramsan, wellan, sizofiran, polygalacturonate, laminarin, amylose, amylopectin and pectins.

"Starches recombinant origin" or "recombinant starches in the invention are starches, which are extracted by enzymatic processes using unnatural organisms, but with the help of natural organisms that modify using genetic methods, such as fungi, algae or bacteria, or which can be extracted when activating and using enzymatic processes. Examples of starches obtained by enzymatic, genetically modified methods include, among others, amylose, amylopectin and polyglycine.

In the context of the invention "starches produced by biotransformation" indicate that the starches, amylose, amylopectin or polyglycine obtained when the catalytic interaction of Monomeric core modules, that is, as a rule, oligomeric sugars, especially mono - and disaccharides using the biocatalyst (also: enzyme) in the special conditions. Examples of starches obtained biocatalytic methods, among others are polyglucin and modificirovannye polyglycine, polifruktan and modified polyfructanes.

Additionally, the invention also includes derivatives of the individual mentioned starches. In this way, the terms "derivatives of starches or starch derivatives", usually refers to modified starches, so the starches in which the natural ratio amylose/amylopectin changed, conducted pre-gelatinization, which was subjected to hydrolytic cleavage or which chemically received in the form of a derivative.

Certain derivatives of starches, among others, belong oxidized starches, for example dialdehyde starch or other products of oxidation with carboxyl functional groups or native ionic starches (e.g., phosphate groups) or advanced lithium-modified starches, indicating both anionic and cationic modification.

To degraded starches that can be used in the context of the invention are starches, which, for example, homogenized by means of glycerin, so that it no longer occurred reflexes of crystal structures by x-ray diffraction, and starch or diakopoulos more would not have been visible when thousandfold increase in the polarization microscope. In this to the text provides a link to the document DE-A1-3931363, description destructured starch which is also part of the present description.

The starch used according to the invention are sold, for example, Cargill, National Starch, Penford Products Co Purac or Südstärke.

Especially preferred are the starches, which have sufficient solubility in cold and/or hot environment. Sufficient solubility is obtained if the viscosity of the binder system according to the invention provides for the possibility of use in the work.

The binder system used according to the invention may also contain up to 10% of the mass. additives. They include commercial additives, such as preservatives, stabilizers, antioxidants, antifoams, substances which impart water resistance, UV stabilizers, fillers and/or dye. They are partially contained in the commercial products and give stability during storage and transportation, or they can be added later in order to meet the technical requirements of the customer.

The amount of the binder system according to the invention, used in the textile fabric is preferably from 5 to 35 wt%. dry binder after drying, in particular from 10 to 30 wt. -%, particularly preferably from 10 to 25% of the mass. dry binder relative to the total weight of the untreated textile fabric is.

The term "textile fabric" in the context of the present description should be understood in its broadest meaning. It can treat all fibrous tissues, produced by the technology of tissue. Forming fiber materials include natural fibers and/or fibers made from synthetic polymers. Examples of such textile material is a woven fabric, canvas, knitted fabrics, as well as, preferably, non-woven materials.

Spunbond non-woven materials, the so-called spunbond, produced by a random offset just molded from the melt fibers, are preferred from non-woven materials made from synthetic polymer fibers. They consist of endless synthetic fibers made from suitable for melting polymeric materials. Suitable polymeric materials are, for example, polyamides, such as polyhexamethylenediamine, polycaprolactam, aromatic or partially aromatic polyamides ("aramids"), aliphatic polyamides, such as nylon, partially aromatic or fully aromatic polyesters, polyster (PPS), polymers with ether and ketopropane, such as polyetherketone (PEK) and polyetheretherketone (PEEK), polyolefins, such as polyethylene or polipropilen, or polybenzimidazole.

Preferably, spunbond nonwovens composed of capable of formation from the melt polyesters. In principle, all types of complex polyester material, suitable for receiving the fibers, can be taken into account. Such polyesters are, for the most part, consist of components derived from aromatic dicarboxylic acids and aliphatic diols. The usual components of aromatic dicarboxylic acids represent a divalent residues benzylcarbamoyl acids, especially terephthalic acid and isophthalic acid; conventional diols contain from two to four C atoms, and ethylene glycol is particularly suitable. Spunbond non-woven materials, which consist of at least 85 mol%. poly (ethylene terephthalate), are particularly preferred. The remaining 15 mol%. then the amount of units of dicarboxylic acid and glycol units, which act as so-called modifying agents that allow a person skilled in the art to consciously affect the physical and chemical characteristics of the resulting filaments. Examples of such units of dicarboxylic acids are residues of isophthalic acid or aliphatic dicarboxylic acid such as glutaric acid, adipic acid and sabotinova acid; examples of astatke the modified diols are remnants, composed of long-chain diols, such as propandiol or butanediol, di - or triethylene glycol or, if present in small quantities, from polyglycol with a molecular weight of approximately from 500 to 2000.

Polyesters containing at least 95 mol%. poly (ethylene terephthalate) (PET), are particularly preferred, especially polyesters consisting of unmodified PET.

If having a basis cushioning materials additionally will have fire-retardant effect, preferably, if they are made from modified in respect of fire protection polyesters. Such modified in respect of fire protection polyesters are known. They contain additives halogenated compounds, in particular compounds of bromine, or when they are especially preferred that they contain phosphorus compounds, which are condensed in the chain complex of the polyester.

Particularly preferably, spunbond nonwovens contain modified in respect of fire protection polyesters containing modules in the chain of the formula (I)

where R is an alkali or polyethylene with from 2 to 6 C atoms or phenyl and R1represents alkyl with 1 to 6 C atoms, aryl or alkyl, condensed inside. Preferably, in the formula (I) R denoted by the AET ethylene and R 1denotes methyl, ethyl, phenyl or o-, m - or p-were, especially methyl. Such spunbond nonwovens are described, for example, in DE-A-3940713.

Polyesters contained in spunbond nonwoven material, preferably have a molecular mass corresponding to its own viscosity (IV) of from 0.6 to 1.4, measured in a solution of 1 g polymer in 100 ml of dichloracetic acid at 25°C.

The individual titles of the threads complicated polyester in spunbond nonwoven material is from 1 to 16 dtex, preferably from 2 to 8 dtex.

In an additional embodiment of the invention, the textile fabric spunbond nonwoven material may also be a fuse connected with the binder nonwoven material, which contains fiber base and hot melt glue. Fiber basics and hot-melt adhesive can be obtained from any thermoplastic forming strands of the polymer. Fiber basics can also be obtained from the nonconsumable forming filaments of polymers. Such spunbond nonwoven hot melt binders are described, for example, in EP-A 0446822 and EP-A 0590629.

Examples of polymers from which you can get fiber basis, are polyacrylonitrile, polyolefins, such as polyethylene or polypropylene, essentially aliphatic polyamides such as nylon 6,6, essentially aromatic polium the water (aramids), such as poly(p-phenyleneterephthalamide) or copolymers containing the correct ratio of aromatic units m-diamine to improve the solubility or poly-(m-phenylenediacetic), essentially aromatic polyesters, such as poly-(p-hydroxybenzoate) or, preferably, essentially aliphatic polyesters, such as polyethylene terephthalate.

The relative ratios of two types of fibers can be selected in a wide interval of values, at the same time making sure that the ratio of fibers hot-melt glue is enough to connect the fibers of the substrate with fibers hot-melt adhesive, thereby giving non-woven material strength sufficient for the intended application. The ratio of hot-melt adhesives in nonwoven material originating from fibers hot-melt glue, is usually less than 50 wt%. (relative to the weight of non-woven material).

Modified polyesters having a melting point of from 10°to 50 ° C, preferably from 30 to 50°C lower than the raw material of non-woven material, especially considered as a hot-melt glue. Examples of such hot melt adhesives are polypropylene, polybutylene terephthalate or polyethylene terephthalate, modified by condensation of long chain diols and/or isophthalic acid or aliphatic dicar is about acid.

Hot melt adhesives are preferably make non-woven fabrics in the form of fibers.

Fiber basics and hot-melt adhesive preferably is made from a single class of polymers. This means that all the fibers are selected from one class of substances, so that they can be easily recycled after used non-woven material. If fiber base consists of a complex of the polyester, for example, selected fibers hot-melt glue will similarly be a complex polyester or a mixture of polyesters, for example, in the form of bicomponent fibers with the PET inside and a copolymer of polyethylene terephthalate having a low melting point as the outer shell. In addition, however, bicomponent fibers, which are made of different polymers, are also possible. Examples of such are bicomponent fiber complex of polyester and polyamide (inner/outer shell).

Title monofilament fibers of the base and hot melt adhesive can be selected in a wide interval of values. Examples of conventional titles are in the range from 1 to 16 dtex, preferably from 2 to 6 dtex.

As with the base cushioning material according to the invention additionally have flame-retardant properties, they preferably contain a flame retardant hot melt is Leah. The polyethylene terephthalate modified by embedding the circuit elements of the formula (I)above, may be present as a flame retardant hot melt adhesive layer fabric according to the invention.

In a preferred embodiment of the invention, the textile fabric is subjected to mechanical and chemical compound with the binder system according to the invention. This connection is additionally improves consumer properties, having a basis of cushioning material.

The connection can be on a separate stages or together, at the same time making sure that, especially in the presence of the reinforcement, optional an existing reinforcement is not damaged or just not very badly damaged. The connection is performed by known methods. Without limiting the possible ways suitable mechanical methods, such as igloprobivnye, especially a hydrodynamic connection, as well as chemical and/or thermoplastic methods.

Because the connection is carried igloprobivnye, it is performed at a density of paintings from 20 to 100 punctures/cm2preferably at 40 punctures/cm2. Hydrodynamic connection can also be implemented instead of or in addition to mechanical igloprobivnye. Preferably, this method is a hydraulic poprobyvat is selected. The hydraulic pressure igloprobivnye is preferably from 5 to 600 bar, in particular from 50 to 450 bar, particularly preferably from 100 to 300 bar.

The cross-sectional diameter of the nozzle is from 0.05 to 0.25 mm, preferably from 0.07 to 0.2 mm Nozzle arranged in the form of so-called petals. The number of nozzles is from 10 to 60 nozzles per inch, preferably from 20 to 40 per inch.

Similarly other liquid media can be used instead of water, and hydraulic igloprobivnye you can perform on multiple stages. Hydraulic igloprobivnye can be performed using an inkjet device continuous action or through the pulsating hydraulic device, the frequency of the pulses is not limited. Hydraulic igloprobivnye particularly preferably in the presence of reinforcement.

Yarn or multifilament yarn constituting the nonwoven materials may have a virtually round cross-section or may have other shapes, such as handleoversize, kidney-shaped, triangular, trilobate or multi-blade cross-section. Fiber with a hollow core and bicomponent or multicomponent fibers can also be used. Additionally, the fibers hot-melt adhesive can also be used in the form of bicomponent or multicomponent fibers.

The textile fabric may be a single or multi - layer fabric.

Fiber, forming a textile fabric, also can be modified by means of the usual additives, for example, using anti-static tools such as carbon black, or flame-retardant additives, such as flame-retardant means. Preferably, these additives are added to the binder system according to the invention.

The weight per unit area of the textile fabric, particularly spunbond nonwoven material is from 20 to 500 g/m2preferably from 40 to 400 g/m2in particular from 90 to 250 g/m2.

To the complete surprise of the experts in the field of application of the binder system according to the invention improves the ability of the textile fabric to keep the size at high temperatures. Thus, the reported improvement in their ability to keep the size in the longitudinal direction, at least 15% (relative to the textile fabric with binders based binders dispersion "SBR" styrene/butadiene), preferably at least 20% and in the transverse direction is detected improvement in their ability to keep the size of at least 15% (relative to the textile fabric with binders based binders dispersion "SBR" styrene/butadiene), preferably at least 20%.

Pre is respectful embodiment of the invention the ability to maintain size during heat treatment of textile fabric, connected a connecting system according to the invention, the maximum is 1.6% in the longitudinal direction and a maximum of 1.7% in the transverse direction, in particular a maximum of 1.5% in the longitudinal direction and 1.5% in the transverse direction.

The ability to keep the size at high temperatures is measured as follows: samples cut in a size of 350 mm × 100 mm (l/c) and measure. Subsequently, the samples load weighing 4 kg in the longitudinal direction along their entire width and vertically hung in a drying chamber for 10 minutes at 200°C. the Measurement resizing is performed through 5 minutes after cooling, leaving a load of 4 kg Result in % represents a change compared to the original value.

Textile fabric according to the invention can be used as being the basis of the cushioning material for asphalt, roofing and insulating materials with coatings, which are also objects of the present invention.

In an additional embodiment of the invention having such basis cushioning materials contain at least the reinforcement. They are preferably designed so that the reinforcement reduced the load to the source, the load having a base cushioning material with reinforcement on the chart impact - elongation (at 20°C) compared the structure with the base cushioning material without reinforcement differed in the range of elongation from 0 to 1%, in at least one position for at least 10%.

In an additional embodiment, the reinforcement can be added so that the load could be reduced only at higher strains.

Good mechanical properties with the base cushioning material gain, in particular, by means of reinforcing fibres and/or yarns, the young's modulus which is at least 5 GPA, preferably at least 10 GPA, particularly preferably 20 GPA. Reinforcing strands mentioned above, that is, monofilament, and the yarns have a diameter of from 0.1 to 1 mm or 10-400 Tex, preferably from 0.1 to 0.5 mm, in particular from 0.1 to 0.3 mm, and have a tensile elongation of from 0.5 to 100%, preferably from 1 to 60%. Particularly preferably, having a basis of cushioning material according to the invention have the stock elongation less than 1%.

Stock extension refers to the extension of the current having the base cushioning material before the action of the load will be taken in reinforcing strands, a supply of elongation of 0% would indicate that the tensile force acting on a basis of the cushioning material will be immediately redirected to the reinforcing filaments. This implies that the load acting on the textile fabric, not lead to the alignment or orientation in the specific aims and reinforcing fibers, but directly forwarded to the reinforcing strands thus, in order to avoid damage to the textile fabric. This, in particular, demonstrate a sharp increase in the load required for small movements (chart impact elongation at room temperature). Additionally, the maximum possible tension force can be improved by means of suitable reinforcing fibers, having a high elongation at break. Mono - or multi-fiber made of a tough polyester, for example, are suitable reinforcing threads.

As an integrated fibers and/or monofilament reinforcing yarns are preferred based on the aramids, preferably, so-called vysokokompetentnoe aramids, carbon, glass, stekloprjazhi, mineral fibers (basalt), monofilament or multi-fiber complex polyester high strength monofilament or integrated polyamide fiber of high strength, as well as hybrid multifilament yarn (filament containing reinforcing filaments and fusible fiber binders) or tape (monofilament), made from metals or metal alloys.

For economic reasons, the preferred reinforcement consists of integrated glass fibers in the form of substantially - parallel ropes or canvas. In most the e cases, non-woven cloth reinforced in the longitudinal direction essentially - parallel ropes.

The reinforcing threads can be used as a woven material, canvas, knitted fabric or non-woven cloth by themselves or in separate textile fabric. Reinforcement parallel reinforcing filaments, i.e. ropes and canvas or woven cloths is preferred.

Depending on the desired profile of properties, the density can be changed in a wide range of values. Preferably, the density is from 20 to 200 filaments per meter. Density is measured vertically to the direction of movement of the device. Preferably, the reinforcing threads add during the formation of spunbond nonwoven material and thus are included in the spunbond nonwoven material. Also preferably, the overlay non-woven fabric for reinforcement or education then reinforcing layer on the nonwoven material in the connection.

Preferred having a base cushioning material according to the invention contain at least one reinforcing agent and indicate on the diagram the effect of the elongation (at 20°C)that the original load with the base cushioning material with reinforcement compared with the base cushioning material without reinforcement differs in the range of elongation from 0 to 1%at least in one put and, at least 10%, preferably at least 20%, especially preferably at least 30%.

For a number of applications require a high modulus material with low elongation also at room temperature. This high modulus material improves the ease of handling, especially in light of nonwoven materials.

Depending on the requirements profile and also aspects costs source load reinforced with a basis of cushioning material can be distributed at low elongation in different ratios on a textile fabric or reinforcing materials.

The original load was measured according to the standard EN 29073, part 3, for samples, 5 cm wide at the installation length in pure form 200 mm is the Numerical value of pre-stretch, which is shown in Centinewton, corresponds to the numerical value of the mass in grams of the sample, which is given in grams per square meter.

With the basis of cushioning material can be strengthened by introducing a reinforcing material into a textile fabric, at least one of the obverse side of the textile fabric or in any position with the base cushioning material, in particular in other textile fabric, which differs from the original textile fabric, or as a separate textile fabric.

With the basis of Proclus the exploration of the material according to the invention may further comprise a textile fabric in addition to already described. Preferably, these additional textile fabrics differ from textile fabrics referred to the first, i.e. they are made of a different material.

Because woven fabrics obtained from synthetic polymers, it may be necessary to incorporate additional textile fabric having a basis of cushioning material according to the invention in order to optimize reflecting the specifics of the application properties.

These additional textile fabric preferably represent a non-woven cloth on the basis of mineral fibers and/or fiberglass.

Non-woven cloth made of mineral fibres used in the base cushioning material according to the invention, it is possible to strengthen binders or mechanical means such as igloprobivnye or hydrodynamic igloprobivnye. Especially preferred are the knitted fabric from yarn, that is infinitely long fibers, or from a complex yarn. The average diameter of the mineral fibers is from 8 to 15 μm, preferably from 10 to 12 microns.

Suitable mineral fibers include aluminum silicate, ceramics, dolomite fiber or fibers from volcanic materials, such as basalt, diabase, malaver. Together they represent as paleobotany, while the diabase is usually defined as see the Yong igneous rocks.

The weight per unit area of nonwoven mineral fiber used in the invention is from 25 to 200 g/m2, preferably from 30 to 70 g/m2. The information above is also suitable for glass mats, which will be described below.

The Mat used with the base cushioning material according to the invention, it is possible to connect with binders or mechanical means such as igloprobivnye or hydrodynamic igloprobivnye. Fiberglass can be a thread or limited size or cut glass, and the length of the latter fibers is from 1 to 40 mm, preferably from 4 to 20 mm

The average diameter of the fiber ranges from 6 to 20 μm, preferably from 8 to 15 microns.

A suitable fiber includes types of glass, such as glass E glass S glass R glass or C, and E glass or glass C are preferred for economic reasons.

With the base cushioning material according to the invention can be sealed by means of additional functional layers in addition to the additional textile fibers, glass fibers and/or mineral fibers mentioned above. The following should take into account the means or functional layers, increasing core strength with the basis of Proclus the exploration of the material. These funds are also objects of the invention.

With the base cushioning material according to the invention can be used for the industrial production of asphalt, roofing and insulating materials with a coating, preferably for the production of bitumen coated glassine, roofing and insulating materials. Besides the basics according to the invention can be used in applications for flooring and filtration.

In addition to bitumen, other materials, such as polyethylene or polyvinyl chloride, polyurethane, EPDM or TPO (polyolefin) can also be used as coating substances for asphalt, roofing and insulating materials with coating.

Bitumen coated materials contain at least one having a base material as described above is immersed in a bitumen matrix, and the massive part of the bitumen by mass per unit area in bitumen coated roofing material is preferably from 60 to 97% of the mass. and spunbond nonwoven material is from 3 to 40 wt. -%

Optional, asphalt, roofing and insulating materials with coating can then sprinkle granulated material such as sand. Asphalt, roofing and insulating materials with the floor, thus obtained, are in themselves good ability to process, is particularly covered with bitumen asphalt, roofing and insulating materials.

Obtained in the production of textile fabric according to the invention includes the following stages:

a) obtaining a textile fabric and its mechanical connection,

b) applying a binder system containing:

I) from 10 to 90% of the mass. aqueous dispersion of polymerization on the basis of conjugated aliphatic dienes and vinyl aromatic compounds,

II) from 90 to 10% of the mass. starch,

III) from 0 to 10% of the mass. additives

c) drying and strengthening binders

with quantities in percentages by weight relative to the dry mass of the binder system, i.e. without water.

Textile fabric get through known methods. Preferably, receiving the textile fabric described in (a), shall be implemented by obtaining a spunbond nonwoven material by known spinning machines.

For this purpose, the molten polymer loaded with polymers through many rows of spinning mechanisms, contiguously or group of rows of spinning mechanisms. If the molten binder is combined with spunbond non-woven material that is to be obtained, it is alternately loaded with the polymer forming the fibers of the substrate and fibers hot-melt glue. Spun threads of polymer stretch in a known manner and UKL is devout on the conveyor belt, for example, using a rotary dividers in the structure of the dispersion or forming a curtain.

The mechanical connection is also carried out by known methods.

Making optional the present reinforcement takes place during or after the production of textile fabrics or before or during the application of the binder system according to the invention. Reinforcement and any optional additional heat treatment in the production method preferably added under action efforts, in particular, stresses in the longitudinal direction.

Additional textile fabric, which will be optional to make, add to, or during, the strengthening of the binder system according to the invention.

The binder system from stage b) is also applied by means of known methods. Application of the binder is preferably from 5 to 50 wt%. (dry matter), in particular from 10 to 30 wt. -%, particularly preferably from 10 to 25 wt. -%, each relative to the total weight of the textile fabric.

Binder also dried and strengthened by methods known to the expert in this field.

Private ways known as such, but they are patentable in combination or sequence according to the invention.

Examples

In the following table 1 shows sravneniyakh tissues, United with binder system according to the invention, relative to the individual components of binders.

Researched spunbond non-woven material based on poly (ethylene terephthalate) (PET) spunbond) when the weight per unit area of 180 g/m2(type JM33/180).

Example 1 shows a standard binder system based on SBR and urea binder, shown in example 2 binder system urea-based and acrylate, shown in example 3 binder system according to the invention, shown in example 4 of the binder system is starch-based and acrylate, shown in example 5 of the binder system based on starch. Typically the concentration of the fluid is 15-40% (i.e., solids in liquids).

The maximum transverse tensile stress
no trial12345
SBR-variance9040
urea resin1010
acrylate dispersion9040
starch6060100
The installed application (wt. -%, the raw non-woven cloth)(%)2020202020
The maximum longitudinal tensile stressDean/5 cm5659575146
The maximum longitudinal tensile stress, when heatedDean/5 cm251927n.t.31
Dean/5 cm4748453636
Longitudinal TDS(%)1,81,91,31,60,8
Cross-TDS(%)-1,6-1,8of-1.4-1,7-1,3
VW - testmg/kg FA~400~400~30~30<10
The absorption of watermm8072725966

1. Textile fabric combined binder system containing:
a) from 10 to 90 wt.% (dry weight) aqueous dispersion of polymerizate based on conjugated aliphatic diene and vinyl aromatic compounds,
b) from 90 to 10 wt.% (dry weight) starch,
c) from 0 to 10 wt.% (dry weight) additives
with quantities in percentages by weight relative to the dry mass of the binder system, i.e. without water,
and where the fabric is a nonwoven material.

2. Textile fabric according to claim 1, characterized in that the aqueous dispersions are emulsion polymers based on:
a) from 20 to 80 mass parts of conjugated aliphatic dienes,
b) from 20 to 80 mass parts of the vinyl aromatic compounds,
c) from 0 to 10 mass parts Ethylenediamine carboxylic acids and/or dicarboxylic acids,
d) from 0 to 20 mass parts of NITRILES Ethylenediamine carboxylic acid,
obtained in the presence of water, emulsifiers and water-soluble catalysts.

3. Textile fabric according to claim 1, characterized in that the dispersion contains a maximum of 5 mass parts Ethylenediamine carboxylic acids and/or dicarboxylic acids, or derivatives of the above-mentioned acid in polymerized form.

4. Textile fabric according to claim 1, characterized in that the dispersion does not contain Ethylenediamine carboxylic acids and/or dicarboxylic acids, or derivatives of the above-mentioned acid in polymerized form.

5. Textile fabric according to claim 1, characterized in that the dispersion contains a maximum of 5 mass parts of NITR the fishing ethyleneamines carboxylic acid in polymerized form.

6. Textile fabric according to claim 1, characterized in that the dispersion does not contain NITRILES ethyleneamines carboxylic acid in polymerized form.

7. Textile fabric according to claim 1, characterized in that the conjugated aliphatic diene (component a)) are butadiene, isoprene, pentadiene-1,3, dimethylbutadiene and/or cyclopentadiene.

8. Textile fabric according to claim 1, wherein the vinyl aromatic compounds (component b)are styrene, a-methylthiophenylacetic and/or vinyltoluene.

9. Textile fabric according to claim 1, characterized in that the dispersions are anionic dispersion.

10. Textile fabric according to claim 1, characterized in that the starch is a natural or modified, or a derivative of starch.

11. Textile fabric according to claim 1, characterized in that the starch is extracted from plant material, in particular from tubers, seeds, fruits and/or pulp plants.

12. Textile fabric according to claim 1, characterized in that the starch consists essentially of a mixture of amylose and amylopectin and preferably has a molecular mass Mwfrom 5·102up to 1·108, particularly preferably from 5·104up to 1·107.

13. Textile fabric according to claim 1, characterized in that the starch is a natural vegetable origin or chemically modified, farms ntative extracted, recombinant origin, or it is produced by biotransformation (Biocatalysis).

14. Textile fabric according to claim 1, characterized in that the applied quantity of the binder system is from 5 to 35 wt.% dry binder relative to the total weight of the untreated textile fabric.

15. Textile fabric according to claim 1, characterized in that the textile fabrics are nonwoven fabrics made of synthetic polymer fibers, preferably spunbond nonwoven material.

16. Textile fabric according to § 15, characterized in that the textile fabric is a spunbond nonwoven material on the basis of polyamides, polycaprolactam, aromatic or partially aromatic polyamides (aramids), aliphatic polyamides, partially aromatic or fully aromatic polyesters, polyster (PPS), polymers with ether groups and ketopropane or polyolefins.

17. Textile fabric according to § 15, characterized in that the textile fabric are spunbond nonwoven materials based on fiber complex polyester containing at least 85 mol.% poly (ethylene terephthalate), preferably at least 95 mol.% poly (ethylene terephthalate).

18. Textile fabric according to claim 1, characterized in that the textile fabric is made from many of the Loew.

19. Textile fabric according to claim 1, characterized in that the textile fabric has a weight per unit area of from 20 to 500 g/m2.

20. Textile fabric according to claim 1, characterized in that the textile fabric has the ability to keep the size by heat treatment maximum of 1.6% in the longitudinal direction and 1.7% in the transverse direction, in particular, a maximum of 1.5% in the longitudinal direction and 1.5% in the transverse direction.

21. The use of textile fabric on one or more of claims 1 to 20 as being the basis of the cushioning material or for industrial production with base gasket materials for asphalt, roofing and insulating materials.

22. With the basis of the cushioning material for asphalt, roofing and insulating materials containing at least one textile fabric according to one or more of claims 1 to 20.

23. With the base cushioning material according to item 22, characterized in that it contains at least one additional reinforcing means.

24. With the base cushioning material according to item 22, characterized in that it contains in addition to the textile fabric according to one or more of claims 1 to 20, at least one additional textile fabric, different from the aforementioned first.

25. The application has a base cushioning material one and the and more of PP-24 for receiving having a base gasket materials for asphalt, roofing and insulating materials, in particular, to obtain asphalt, roofing and insulating materials with coating.

26. Asphalt, roofing and insulating materials with a coating containing at least one having a base cushioning material according to one or more of p-24 and at least one covering means.



 

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