# US 2020/0399498 A1 · Textile coat rubber composition for a tire and a tire comprising a textile coat rubber composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399498 A1 - Document ID: US20200399498A1 - Status: Published application - Kind: A1 - Application number: 16/901,415 - Filed: 2020-06-15 - Published: 2020-12-24 - Earliest claimed: 2019-06-18 - Assignees: The Goodyear Tire & Rubber Company - Applicants: The Goodyear Tire & Rubber Company - Inventors: Adrian Osvaldo Balaguer Pino; Julia Martine Francoise Claudine Tahon - Web page: https://patentgrep.com/patent/US20200399498A1 ## CPC - C08K 9/04: Ingredients treated with organic substances {(treated with macromolecular compounds C08K9/08)} - C09D 109/06: Copolymers with styrene - B60C 1/00: Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition - B60C 1/0041: {Compositions of the carcass layers} - B60C 9/0042: {Reinforcements made of synthetic materials} - B60C 9/22: the plies being arranged with all cords disposed along the circumference of the tyre - C08K 3/04: Carbon - C08K 3/06: Sulfur - C08K 3/36: Silica - C08K 5/098: Metal salts of carboxylic acids - C08K 5/18: with aromatically bound amino groups - C08K 5/20: Carboxylic acid amides - C08K 5/3415: Five-membered rings - C08K 5/3492: Triazines - C08L 7/00: Compositions of natural rubber - C09D 147/00: Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Coating compositions based on derivatives of such polymers (C09D145/00 takes precedence; based on conjugated diene rubbers C09D109/00 - C09D121/00) - B60C 2001/0066: {Compositions of the belt layers} - B60C 2001/0083: {Compositions of the cap ply layers} - B60C 2009/0035: {Reinforcements made of organic materials, e.g. rayon, cotton or silk} - B60C 2009/2238: {Physical properties or dimensions of the ply coating rubber} - C08K 2201/006: Additives being defined by their surface area - C08K 2201/011: Nanostructured additives - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract In accordance with the invention, a textile cord coat composition for a tire comprises from 70 to 90 phr cis 1,4-polyisoprene rubber, from 10 to 30 phr styrene butadiene rubber, from 25 to 45 phr carbon black, the latter comprising between 1 and 6 phr high surface area carbon black having a BET surface area of more than 700 m2/g. Moreover, the invention is directed to a textile reinforced ply and a tire comprising such a textile cord coat composition. ## Claims ### Claim 1 A textile cord coat rubber composition comprising: from 70 phr to 90 phr of cis 1,4-polyisoprene rubber, from 10 phr to 30 phr of styrene-butadiene rubber, from 25 phr to 45 phr of carbon black, wherein the carbon black includes from 1 phr to 10 phr of a high surface area carbon black having a BET surface area of more than 700 m2/g. ### Claim 2 (depends on 1) The textile cord coat rubber composition of claim 1 wherein the cis 1,4-polyisoprene rubber is present at a level which is within the range of 75 phr to 90 phr, wherein the styrene-butadiene rubber is present at a level which is within the range of 10 phr to 25 phr, wherein the carbon black is present at a level which is within the range of 25 phr to 40 phr, and wherein the carbon black includes from 2 phr to 5 phr of the high surface area carbon black. ### Claim 3 (depends on 1) The textile cord coat rubber composition of claim 1, wherein the high surface area carbon black has a BET surface area which is within the range of 900 m2/g to 1500 m2/g; and wherein the high surface area carbon black has an average particle size which is within the range of 20 nm to 40 nm. ### Claim 4 (depends on 1) The textile cord coat rubber composition of claim 1, wherein the high surface area carbon black has an oil absorption value of more than 300 ml/100 g. ### Claim 5 (depends on 1) The textile cord coat rubber composition of claim 1, which is further comprised of a carbon black coupling agent of the structural formula: wherein R1and R2 can be the same or different and represent hydrogen atoms or an alkyl group, alkenyl group or alkynyl group containing from 1 to 20 carbon atoms; and wherein M+ represents a sodium ion, a potassium ion, or a lithium ion. ### Claim 6 (depends on 5) The textile cord coat rubber composition of claim 5, wherein R1 and R2 represent hydrogen atoms and wherein M+ represents a sodium ion. ### Claim 7 (depends on 5) The textile cord coat rubber composition of claim 5, wherein the carbon black coupling agent is present at a level which is within the range of 0.5 phr to 3 phr. ### Claim 8 (depends on 1) The textile cord coat rubber composition of claim 1, wherein said composition is further comprised of 3 phr to 7 phr of sulfur. ### Claim 9 (depends on 1) The textile cord coat rubber composition of claim 1, wherein said composition contains less than 10 phr of silica. ### Claim 10 (depends on 1) The textile cord coat rubber composition of claim 1, wherein said composition is further comprised of a resin at a level which is within the range of 4 phr to 10 phr. ### Claim 11 (depends on 1) The textile cord coat rubber composition of claim 1, wherein said composition is further comprised of a methylene donor and a methylene acceptor, and wherein the weight ratio of the methylene donor to the methylene acceptor is within the range of 1:3 to 3:1. ### Claim 12 (depends on 11) The textile cord coat rubber composition of claim 11, wherein the methylene acceptor is of the chemical structural formula: and wherein the methylene acceptor is present at a level which is within the range of 0.1 phr to 10 phr, and wherein the methylene donor is of the chemical structural formula: wherein X represents an alkyl group having from 1 to 8 carbon atoms, and wherein R, R1, R2, R3, and R4 can be the same or different and are individually selected from the group consisting of hydrogen atoms, alkyl groups having from 1 to 8 carbon atoms, —CH2OX groups or their condensation products. ### Claim 13 (depends on 1) A textile reinforced ply which is comprised of the textile cord coat rubber composition as specified in claim 1 and a plurality of substantially parallel reinforcing textile cords which are embedded in the textile cord coat rubber composition. ### Claim 14 (depends on 13) The textile reinforced ply of claim 13, wherein the rubber composition is further comprised of a carbon black coupling agent of the structural formula: wherein R1 and R2 can be the same or different and represent hydrogen atoms or an alkyl group, alkenyl group or alkynyl group containing from 1 to 20 carbon atoms; and wherein M+ represents a sodium ion, a potassium ion, or a lithium ion. ### Claim 15 (depends on 14) The textile reinforced ply of claim 14, wherein the carbon black coupling agent is present in the rubber composition at a level which is within the range of 0.1 phr to 5 phr. ### Claim 16 (depends on 14) The textile reinforced ply of claim 14, wherein the rubber composition is further comprised of a methylene donor and a methylene acceptor, wherein the weight ratio of the methylene donor and the methylene acceptor is within the range of 1:3 to 3:1. ### Claim 17 (depends on 16) The textile reinforced ply of claim 16 wherein the methylene acceptor is of the chemical structural formula: and wherein the methylene acceptor is present at a level which is within the range of 0.1 phr to 10 phr, and the methylene donor is of the chemical structural formula: wherein X represents an alkyl group having from 1 to 8 carbon atoms, and wherein R, R1, R2, R3, and R4 can be the same or different and are individually selected from the group consisting of hydrogen atoms, alkyl groups having from 1 to 8 carbon atoms, —CH2OX groups or their condensation products. ### Claim 18 (depends on 13) The textile reinforced ply of claim 13 wherein the textile reinforced ply is a carcass ply, a belt ply, an overlay ply or a ply strip. ### Claim 19 (depends on 13) A pneumatic tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply as specified in claim 13, wherein the textile reinforced ply extends from bead to bead, and sidewalls extending radially from and connecting said tread to said beads, and wherein said tread is adapted to be ground-contacting. ### Claim 20 (depends on 18) A pneumatic tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, and wherein the pneumatic tire is further comprised of a reinforcing ply as specified in claim 18.