EP4395979A1 - Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung - Google Patents
Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellungInfo
- Publication number
- EP4395979A1 EP4395979A1 EP22768803.3A EP22768803A EP4395979A1 EP 4395979 A1 EP4395979 A1 EP 4395979A1 EP 22768803 A EP22768803 A EP 22768803A EP 4395979 A1 EP4395979 A1 EP 4395979A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aqueous dispersion
- composite material
- textile reinforcement
- rubber
- adhesion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0005—Pretreatment of tyres or parts thereof, e.g. preheating, irradiation, precuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D30/40—Chemical pretreatment of textile inserts before building the tyre
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0041—Compositions of the carcass layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/69—Polymers of conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
- B29D2030/383—Chemical treatment of the reinforcing elements, e.g. cords, wires and filamentary materials, to increase the adhesion to the rubber
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/354—Applications of adhesives in processes or use of adhesives in the form of films or foils for automotive applications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2407/00—Presence of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2421/00—Presence of unspecified rubber
- C09J2421/006—Presence of unspecified rubber in the substrate
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
Definitions
- the invention relates to a method for producing a vulcanizable composite material and a method based thereon for producing a vulcanized composite material or a vehicle tire, as well as a corresponding vulcanizable composite material and a vulcanized composite material producible therefrom or a corresponding vehicle tire.
- abrasion protection ie as a protective material layer in the sidewall area of vehicle tires or as rim protection in the area of the so-called nettle.
- the textile reinforcements some of which are used in the form of fabrics, are mostly on the surface of the composite materials and are only partially surrounded by the rubber coating, so that the textile reinforcements on the The surface is exposed and covers the underlying rubber materials as a kind of protective layer.
- the textile reinforcements are usually arranged on the surface of a crosslinkable rubber coating mixture during the production of corresponding composite materials.
- the rubber coating mixture is then usually pressed outwards against the textile reinforcements in the vulcanization mold, so that these are partially in the rubber coating in the vulcanized composite material obtained.
- the method to be specified should be able to be carried out in a particularly time- and cost-efficient manner and preferably without complex work steps, such as, for example, one-sided adhesion activation.
- the basic color of the textile reinforcements should remain visible despite any adhesion-activating coatings, in particular to enable color identification of the material and to make manufacturer-specific identification threads visible.
- the invention relates to a method for producing a vulcanizable composite material, comprising the steps: a) producing or providing a textile reinforcement, b) treating the textile reinforcement with an aqueous dispersion to activate the adhesion of the textile reinforcement and to obtain an adhesion-activated textile reinforcement, and c) Arranging the adhesion-activated textile reinforcement on the surface of a base material comprising a crosslinkable rubber coating mixture to obtain the vulcanizable composite material, the aqueous dispersion being essentially free of free resorcinol and resorcinol precondensates, in particular resorcinol-formaldehyde precondensates, and free of free formaldehyde as well Substances releasing formaldehyde, wherein the crosslinkable rubber mixture can be processed by vulcanization to form a crosslinked rubber mixture which is at least partially visible to visible light nd is partially permeable.
- the expression "at least partially transparent to visible light” means, in accordance with the understanding of the expert, that the crosslinked rubber mixture interacts so little with electromagnetic radiation of a wavelength in the visible range, or a part of the wavelengths in the visible range, shows that the textile reinforcements in the vulcanizable composite material and in the vulcanized composite material are visible from the outside. This means that it is not necessary for the crosslinked rubber coating mixture to show no absorption at all in the visible wavelength range, since partial absorption, for example at certain wavelengths, can also be tolerated, particularly in the case of transparent colored rubber coatings.
- the crosslinked rubber mixture is at least partially transparent to visible light, at least in sections.
- the vulcanizable composite material or the vulcanized composite material can also include sections in which the rubber coating is not translucent is formed, for example in the form of alternating areas under the textile Reinforcement.
- aqueous dispersion dry weight of the aqueous dispersion
- the specified components such as resorcinol, resorcinol precondensates, formaldehyde and formaldehyde
- releasing substances may be included, i.e. 0.1% by weight is the maximum amount for each of the above components.
- the content of all of these components in the aqueous dispersion is preferably 0% by weight.
- a method according to the invention is preferred, wherein the textile reinforcement is at least partially colored and/or comprises at least one tracer thread, preferably comprises at least one tracer thread.
- the advantages of the method according to the invention are particularly pronounced.
- the textile reinforcement comprises one or more reinforcing cords, preferably in the form of a fabric, which each comprise at least two different yarns, the yarns each preferably consisting of a material which is selected from the group consisting of polyesters, polyamides, polyurethanes, glass, carbon, celluloses, polycarbonates and polyketones.
- a method according to the invention is preferred, in which at least one of the yarns, preferably all yarns, in the reinforcing cords has a fineness in the range from 90 to 5000 dtex, preferably in the range from 100 to 2500 dtex or in the range from 2500 to 4500 dtex, particularly preferably in the range from 200 to 1500 dtex or in the range from 3000 to 4000 dtex.
- a method according to the invention is also preferred in which the polyamide yarn has a twist factor in the range from 100 to 400, preferably in the range from 150 to 350.
- the twist factor a is a value known to those skilled in the art and is calculated from the twist level in T/m (“turns per meter”) and the fineness in tex:
- a method according to the invention is also preferred, in which at least one of the reinforcement cords, preferably all the reinforcement cords, comprises two or more yarns, the yarns in the reinforcement cord preferably having 100 to 600 T/m, particularly preferably 150 to 550 T/m, very particularly preferably with 200 to 500 T/m, end-twisted together.
- a method according to the invention is also preferred, in which at least one of the reinforcing cords, preferably all the reinforcing cords, has an overall fineness in the range from 180 to 10,000 dtex, preferably in the range from 200 to 7500 dtex, particularly preferably in the range from 400 to 5000 dtex.
- the crosslinkable rubber mixture comprises two or more separate partial rubber mixtures, it being possible for at least one partial rubber mixture to be processed by vulcanization to give a cross-linked partial rubber mixture which is at least partially transparent to visible light.
- a method according to the invention is preferred, in which the crosslinkable rubber coating mixture can be processed by vulcanization to form a crosslinked rubber coating mixture which is at least partially transparent to visible light essentially in its entirety.
- the halogenated copolymer of a C4 to C7 isoolefin and an alkylstyrene can be composed of an isobutylene and a methylstyrene, where the styrene moiety can be ortho-, meta-, or para-alkylated.
- the copolymer can be halogenated with any halogen.
- a brominated copolymer of isobutylene and para-methylstyrene is preferably used.
- the diene rubbers used in the mixture, in particular styrene-butadiene copolymers, can also be used partially or fully functionalized.
- a method according to the invention is preferred for some applications, in which the crosslinkable rubber mixture additionally comprises 0.1 to 10 phr of other fillers, the other fillers being selected from the group consisting of aluminosilicates, chalk, starch, magnesium oxide, titanium dioxide, rubber gels and combinations these fillers.
- a method according to the invention is alternatively preferred, in which the crosslinkable rubber mixture comprises less than 0.005 phr, preferably less than 0.001 phr, of the other fillers.
- Anti-aging agents are, for example, substances such as N-phenyl-N'-(1,3-dimethylbutyl)-p-phenylenediamine (6PPD), N,N'-diphenyl-p-phenylenediamine (DPPD), N,N'-ditolyl-p- phenylenediamine (DTPD), N-isopropyl-N'-phenyl-p-phenylenediamine (IPPD) and 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ).
- the use of high-ammonia natural latex derived from the “Hevea brasiliensis” tree is preferred.
- Suitable polyisocyanate compounds as a component of baths/dips for textile reinforcements are known in principle to those skilled in the art.
- the polyisocyanate compound can be blocked with another compound or as a dimer or higher homologue, i.e. “self-blocked”.
- the polyisocyanate compound comprises building blocks selected from the group consisting of tetramethylene diisocyanate, hexamethylene diisocyanate, diphenylmethane-4,4'-diisocyanate, octamethylene diisocyanate, decamethylene diisocyanate, dodecamethylene diisocyanate, aromatic diisocyanates comprising 2,4 - or 2,6-toluene diisocyanate, tetramethylxylene diisocyanate, p-xylene diisocyanate, 2,4'- or 4,4'-diisocyanate diphenylmethane, 1,3- or 1,4-phenyl diisocyanate.
- the polycarboxylic acid is preferably based on acrylic acid, methacrylic acid, itaconic acid, crotonic acid, cinnamic acid and/or maleic acid monomers.
- the polycarboxylic acid (based on acrylic acid monomers) is an acrylic resin.
- Suitable epoxy compounds as a component of corresponding aqueous dispersions are known in principle to those skilled in the art. It is preferred within the scope of the present invention that the epoxy compound is selected from the group consisting of glycidyl-based glycerol, sorbitol-based epoxy compounds, phenol-based novolak epoxy compounds and cresol-based novolak epoxy compounds.
- a particularly suitable epoxy compound is, for example, a glycerol-based polyglycidyl ether, such as e.g. B. DenacolTM EX-313, which is described, inter alia, in DE 69722388 T2.
- waxes as a component of corresponding aqueous dispersions are known in principle to the person skilled in the art.
- Preferred examples are paraffinic waxes, microcrystalline waxes, synthetic waxes and waxes from natural sources such as beeswax, also including combinations of two or more waxes.
- Water-dispersible inorganic fillers are particularly suitable as fillers for the aqueous dispersion.
- the aqueous dispersion preferably has a pH of from 5 to 11, preferably from 7 to 11, which can expediently be adjusted with a base.
- the base is preferably a volatile base which or components thereof evaporate during the process.
- the base is ammonium hydroxide, ie an aqueous solution of ammonia.
- aqueous dispersion comprises:
- (x1) at least one rubber latex, preferably in a proportion by mass of 4 to 60%, based on the dry weight of the aqueous dispersion, and (x2) at least one protected isocyanate, preferably in a proportion by mass of 0.1 to 10%, based on the dry weight of the aqueous dispersion.
- a method according to the invention is also preferred, in which the aqueous dispersion comprises:
- (y1) at least one compound which contains an epoxy group, preferably in a mass fraction of up to 6%, based on the dry weight of the aqueous dispersion, and/or
- (y2) at least one polymer having carboxylic acid functional groups, preferably in a mass fraction of up to 15%, based on the dry weight of the aqueous dispersion.
- a method according to the invention is particularly preferred, in which the aqueous dispersion comprises one of the following components:
- (z1) at least one filler, preferably in a mass fraction of 0.02 to 20%, based on the dry weight of the aqueous dispersion, preferably with the proviso that the aqueous dispersion does not comprise any polymer with carboxylic acid functional groups, or
- (z2) at least one polyisoprene rubber latex, preferably in a mass fraction of 1 to 20% based on the dry weight of the aqueous dispersion, preferably with the proviso that the aqueous dispersion comprises at least one rubber latex which is not a polyisoprene rubber latex, or
- (z3) at least one wax, preferably in a proportion by mass of 0.3 to 30%, based on the dry weight of the aqueous dispersion.
- aqueous dispersions for adhesion activation the inventors believe that three specific embodiments are particularly suitable.
- aqueous dispersion comprises:
- (h1) at least one rubber latex, in a proportion by mass of 4 to 50%, preferably 4.5 to 25%, based on the dry weight of the aqueous dispersion,
- (h2) at least one protected isocyanate, in a proportion by mass of from 0.1 to 4.5%, preferably from 0.2 to 4%, based on the dry weight of the aqueous dispersion,
- (h3) at least one filler, in a proportion by mass of from 0.02 to 20%, preferably from 0.3 to 15%, based on the dry weight of the aqueous dispersion.
- At least one wax in a proportion by mass of from 0.3 to 30%, preferably from 0.5 to 15%, based on the dry weight of the aqueous dispersion.
- the aqueous dispersion comprises: (j1) at least one rubber latex, in a mass fraction of 4 to 40%, preferably 4.5 to 20%, based on the dry weight of the aqueous dispersion, the rubber latex not being a polyisoprene rubber latex,
- (j2) at least one protected isocyanate, in a proportion by mass of 0.1 to 10%, preferably 0.2 to 4.5%, based on the dry weight of the aqueous dispersion,
- the adhesive activation produced can be colored particularly easily by utilizing the advantageously lacking intrinsic color of the aqueous dispersion.
- a method according to the invention is therefore preferred in which the aqueous dispersion comprises one or more pigments and/or dyes.
- the aqueous dispersion is preferably applied as a dip, which is possible without optical losses because of the advantageous low inherent color despite the use as abrasion protection and despite the translucent rubber coating.
- a method according to the invention is therefore preferred, in which the treatment in step b) comprises immersing the textile reinforcement in the aqueous dispersion, the treatment preferably also comprising hot stretching of the immersed textile reinforcement.
- the advantageous vulcanized composite materials or the vehicle tires comprising these vulcanized composite materials can be produced by vulcanization from the unvulcanized vehicle tire blanks produced above, or in less preferred cases only from the unvulcanized composite materials.
- the invention therefore also relates to a method for producing a vehicle tire, in particular a bicycle tire, or a vulcanized composite material, comprising the steps of the method according to the invention for producing a vulcanizable composite material, and additionally at least one of the steps: e) vulcanizing the vulcanizable composite material to obtain a vulcanized composite material, and/or f) vulcanizing the unvulcanized vehicle tire blank to obtain a vehicle tire, the vulcanizing being carried out in such a way that the adhesion-activated textile reinforcement is at least partially on the surface of the vulcanized composite material and/or the vehicle tire, the vulcanizing preferably being carried out in such a way that the adhesion-activated textile reinforcement is partially surrounded by the cross-
- a method according to the invention is preferred in this respect, in which the vehicle tire is a bicycle tire, the width of the tire casing transverse to the direction of rotation preferably being in the range of 20 to 70 mm, preferably in the range of 25 to 65 mm and/or the inner diameter of the tire casing preferably being in Range from 340 to 640 mm, preferably in the range from 550 to 630 mm.
- a method according to the invention is very particularly preferred, in which the vehicle tire comprises the vulcanized composite material as part of the side wall, preferably as abrasion protection.
- the invention also relates to the vulcanizable composite material produced with the method according to the invention, the vulcanized composite material that can be produced therefrom and the corresponding vehicle tires, with the advantages discussed above resulting in each case.
- the invention consequently also relates to a vulcanized composite material, in particular for use as abrasion protection in vehicle tires produced or producible by vulcanization of the vulcanizable composite material according to the invention, preferably with the method according to the invention for the production of a vulcanized composite material, comprising a crosslinked rubber coating mixture which is at least partially transparent to visible light is, wherein the adhesion-activated textile reinforcement is at least partially on the surface of the vulcanized composite material, wherein the adhesion-activated textile reinforcement is preferably partially surrounded by the crosslinked rubber coating mixture.
- a textile reinforcement is provided that is a woven fabric made from a plurality of reinforcing cords, the reinforcing cords each comprising a 420 dtex aramid yarn and a 470 dtex nylon yarn, which are rated at 320 T /m end twisted together.
- the aramid yarn used is yellowish in colour, whereas the nylon yarn has a manufacturer-specific identification mark.
- the textile reinforcement is activated by a dipping process with an aqueous dispersion and processed by means of hot stretching.
- the aqueous dispersion contains neither free resorcinol or resorcinol precondensates nor free formaldehyde or substances that release formaldehyde.
- a composition is used as the aqueous dispersion which comprises vinyl pyridine latex in a mass fraction of 20%, based on the dry weight of the aqueous dispersion, blocked hexamethylene diisocyanate in a mass fraction of 5%, based on the dry weight of the aqueous dispersion, and polyisoprene rubber latex in one based on the dry weight of the aqueous dispersion by mass of 10%.
- the aqueous dispersion preferably also comprises one based on acrylic acid based polycarboxylic acid and as an epoxy compound glycerol-based polyglycidyl ether.
- the adhesive-activated reinforcement is then arranged on the surface of a layered base material that includes a crosslinkable rubber coating mixture.
- the crosslinkable rubber mixture comprises 25 phr of a brominated copolymer of isobutylene and para-methylstyrene and 55 phr of natural polyisoprene and 20 phr of cis-1,4-butadiene rubber.
- the curable rubber compound also contains 30 phr of amorphous silica as a filler and is free of black colorants, in particular black pigments such as carbon black or graphene.
- An aqueous coating material is applied to the textile reinforcements lying on the surface ceramic hard material with a mass fraction of about 7% and a polyisoprene-based binder.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21194746.0A EP4144513B1 (de) | 2021-09-03 | 2021-09-03 | Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung |
| PCT/EP2022/073574 WO2023030988A1 (de) | 2021-09-03 | 2022-08-24 | Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4395979A1 true EP4395979A1 (de) | 2024-07-10 |
Family
ID=77640422
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21194746.0A Active EP4144513B1 (de) | 2021-09-03 | 2021-09-03 | Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung |
| EP22768803.3A Pending EP4395979A1 (de) | 2021-09-03 | 2022-08-24 | Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21194746.0A Active EP4144513B1 (de) | 2021-09-03 | 2021-09-03 | Verbundmaterial als scheuerschutz für fahrzeugreifen und verfahren zur herstellung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250001648A1 (de) |
| EP (2) | EP4144513B1 (de) |
| CN (1) | CN117897269A (de) |
| ES (1) | ES3038404T3 (de) |
| WO (1) | WO2023030988A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8234954U1 (de) | 1982-12-13 | 1983-06-09 | Continental Gummi-Werke Ag, 3000 Hannover | Fahrradluftreifen |
| JPS60139876A (ja) * | 1983-12-27 | 1985-07-24 | 東レ株式会社 | ゴム補強用繊維材料の着色接着処理方法 |
| DE69722388T2 (de) | 1996-03-04 | 2004-04-22 | Edwards Lifesciences Corp., Irvine | Nichtpolymere epoxyverbindungen zur vernetzung von biologischem gewebe und daraus hergestellte bioprothesen |
| US6624220B1 (en) | 1997-12-15 | 2003-09-23 | Exxonmobil Chemical Patents Inc. | Transparent and colorable elastomeric compositions |
| US6939921B2 (en) | 2001-10-16 | 2005-09-06 | Exxonmobil Chemical Patents Inc. | Colorable elastomeric composition |
| DE102008037714A1 (de) | 2008-07-31 | 2010-02-04 | Continental Reifen Deutschland Gmbh | Kautschukmischung mit umweltfreundlichem Weichmacher |
| KR101650607B1 (ko) * | 2009-04-28 | 2016-08-23 | 가부시키가이샤 브리지스톤 | 유기 섬유 코드용 접착제 조성물 및 그것을 사용한 고무 보강재, 타이어 및 접착 방법 |
| DE102016210467A1 (de) * | 2016-06-14 | 2017-12-14 | Continental Reifen Deutschland Gmbh | Verfahren zur Herstellung einer Festigkeitsträgerlage, Festigkeitsträgerlage und Fahrzeugreifen |
| DE102017212455A1 (de) | 2017-07-20 | 2019-01-24 | Continental Reifen Deutschland Gmbh | Verfahren zur Herstellung eines Fahrzeugreifens und Fahrzeugreifen hergestellt nach dem Verfahren und Verwendung von behandelten Festigkeitsträgern |
| EP3702523A1 (de) | 2019-03-01 | 2020-09-02 | Continental Reifen Deutschland GmbH | Wässrige tauchzusammensetzung |
| EP3702522A1 (de) | 2019-03-01 | 2020-09-02 | Continental Reifen Deutschland GmbH | Wässrige tauchzusammensetzung |
| EP3702521A1 (de) | 2019-03-01 | 2020-09-02 | Continental Reifen Deutschland GmbH | Wässrige tauchzusammensetzung |
-
2021
- 2021-09-03 EP EP21194746.0A patent/EP4144513B1/de active Active
- 2021-09-03 ES ES21194746T patent/ES3038404T3/es active Active
-
2022
- 2022-08-24 EP EP22768803.3A patent/EP4395979A1/de active Pending
- 2022-08-24 WO PCT/EP2022/073574 patent/WO2023030988A1/de not_active Ceased
- 2022-08-24 US US18/688,441 patent/US20250001648A1/en active Pending
- 2022-08-24 CN CN202280059546.7A patent/CN117897269A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; TIZUKA JOJI ET AL: "COLORING AND BONDING OF FIBER MATERIALS FOR RUBBER REINFORCEMENT", XP002149189, retrieved from CHEMABS Database accession no. 104-20584 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES3038404T3 (en) | 2025-10-13 |
| EP4144513A1 (de) | 2023-03-08 |
| EP4144513B1 (de) | 2025-06-04 |
| US20250001648A1 (en) | 2025-01-02 |
| WO2023030988A1 (de) | 2023-03-09 |
| CN117897269A (zh) | 2024-04-16 |
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