Oil-containing rubber compositions and related methods
AssigneeBridgestone Americas Tire Operations, LLC
InventorsPriyavardhana Srinivasan, Amy M. Randall, Justin J. Styer, Lawrence T. Rittman
Life of this patent
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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.
Claims18
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.
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.
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.
Dependencies are inferred from the claim text.