# US 10,370,526 B2 · Oil-containing rubber compositions and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,526 B2 - Document ID: US10370526B2 - Status: Granted - Kind: B2 - Application number: 15/539,050 - Filed: 2015-12-08 - Published: 2017-12-21 - Granted: 2019-08-06 - Earliest claimed: 2014-12-23 - Assignees: Bridgestone Americas Tire Operations, LLC - Applicants: Bridgestone Americas Tire Operations, LLC - Inventors: Priyavardhana Srinivasan; Amy M. Randall; Justin J. Styer; Lawrence T. Rittman - Web page: https://patentgrep.com/patent/US10370526B2 ## CPC - C08L 9/06: Copolymers with styrene - B60C 1/00: Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition - B60C 1/0016: {Compositions of the tread} - C08K 3/00: Use of inorganic substances as compounding ingredients - C08L 9/00: Compositions of homopolymers or copolymers of conjugated diene hydrocarbons - C08L 15/00: Compositions of rubber derivatives (C08L11/00, C08L13/00 take precedence) - C12P 7/64: Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats - C12P 7/6463: obtained from glyceride producing microorganisms, e.g. single cell oil - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C12P: FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {(brewing of beer C12C; producing vinegar C12J; producing specific peptides or proteins C07K; producing enzymes C12N9/00; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification C12N15/00; measuring or testing processes involving enzymes or microorganisms C12Q; measuring or testing processes involving nucleic acid amplification reactions C12Q1/6844; fermentation processes to form a food composition, A21 or A23; compounds in general, see the relevant compound class, e.g. C01, C07)} ## Abstract Disclosed herein are rubber compositions comprising bio-oil produced by a recombinant cell. Also disclosed are methods of controlling the variability of fatty acid content in bio-oil containing rubber compositions or tires comprising at least one component incorporating the bio-oil containing rubber composition, and a method of providing a bio-oil-containing tire with a reduced carbon footprint. ## Claims ### Claim 1 A bio-oil-containing tire rubber composition, comprising 1 to 50 phr of bio-oil produced by a recombinant cell wherein the bio-oil has an oleic acid content of at least 65% by weight and a linoleic acid content of at least 7% by weight, at least one rubber in an amount of 100 parts including at least 60% by weight of at least one of polybutadiene having a cis-1,4-bond content of 90% or higher, polybutadiene having a cis-1,4-bond content of 50% or lower, or non-functionalized styrene-butadiene copolymer, 50 to 200 phr of at least one reinforcing filler, and a cure package, wherein the at least one reinforcing filler comprises at least one of carbon black and silica and the amount of carbon black is no more than 30% by weight of the total amount of reinforcing filler. ### Claim 2 (depends on 1) The tire rubber composition of claim 1, wherein the bio-oil is present in an amount of 10 to 30 phr. ### Claim 3 (depends on 1) The tire rubber composition of claim 1, wherein the bio-oil is present in an amount of 5 to 40 phr. ### Claim 4 (depends on 1) The tire rubber composition of claim 1, wherein the at least one rubber includes at least 70% by weight of non-functionalized solution styrene-butadiene copolymer. ### Claim 5 (depends on 1) A tire sidewall comprising the tire rubber composition of claim 1. ### Claim 6 (depends on 1) A tire tread comprising the tire rubber composition of claim 1. ### Claim 7 (depends on 1) The tire rubber composition of claim 1, wherein the bio-oil has a linoleic acid content of at least about 8% by weight. ### Claim 8 A bio-oil-containing tire rubber composition made by mixing ingredients comprising about 5 to about 40 phr of bio-oil produced by a recombinant algal cell and having an oleic acid content of at least 70% by weight and a linoleic acid content of at least 7% by weight, at least one rubber in an amount of 100 parts including at least 60% by weight of at least one of polybutadiene having a cis-1,4-bond content of 90% or higher, polybutadiene having a cis-1,4-bond content of 50% or lower, or non-functionalized styrene-butadiene one diene monomer-containing polymer or copolymer, 50 to 200 phr of at least one reinforcing filler, and a cure package, wherein the at least one reinforcing filler comprises at least one of carbon black and silica and the amount of carbon black is no more than 30% by weight of the total amount of reinforcing filler. ### Claim 9 (depends on 7) The tire rubber composition of claim 7, wherein the bio-oil is used in an amount of 10 to 20 phr. ### Claim 10 (depends on 7) The tire rubber composition of claim 7, wherein the bio-oil is used in an amount of 5 to 30 phr. ### Claim 11 (depends on 7) The tire rubber composition of claim 7, wherein the at least one rubber includes at least 70% by weight of non-functionalized solution styrene-butadiene copolymer. ### Claim 12 (depends on 8) A tire tread comprising the tire rubber composition of claim 8. ### Claim 13 (depends on 8) The tire rubber composition of claim 8, wherein at least 60% by weight of the elastomer comprises polybutadiene having a cis-1,4-bond content of 92% or higher. ### Claim 14 (depends on 8) The tire rubber composition of claim 8, wherein at least 60% by weight of the elastomer comprises polybutadiene having a cis-1,4-bond content of 95% or higher. ### Claim 15 A bio-oil-containing tire rubber composition made by mixing ingredients comprising 5 to 50 phr of bio-oil produced by a recombinant algal cell and having a fatty acid content of at least 90% by weight, a linoleic acid content of at least 8% by weight and an oleic acid content of at least 65% by weight, at least one rubber in an amount of 100 parts including at least 60% by weight of at least one of polybutadiene having a cis-1,4-bond content of 90% or higher, polybutadiene having a cis-1,4-bond content of 50% or lower, or non-functionalized styrene-butadiene copolymer, 35 to 200 phr of at least one reinforcing filler, and a cure package, wherein the at least one reinforcing filler comprises at least 35 phr of silica optionally in combination with carbon black. ### Claim 16 (depends on 1) The tire rubber composition of claim 1, wherein 0 phr of petroleum oil is present. ### Claim 17 (depends on 8) The tire rubber composition of claim 8, wherein 0 phr of petroleum oil is present. ### Claim 18 (depends on 15) The tire rubber composition of claim 15, wherein 0 phr of petroleum oil is present.