Oil-containing rubber compositions and related methods
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.
1. A bio-oil-containing rubber composition, comprising
1 to 100 phr of bio-oil produced by a recombinant cell,
at least one rubber including at least one diene monomer-containing polymer or copolymer,
5 to 150 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, and wherein the at least one rubber includes 10 to 90 phr of functionalized polybutadiene having a cis 1,4-bond content of at least 90%, and wherein the at least one rubber does not include an oil-extended rubber.
2. The rubber composition of claim 1 , wherein the recombinant cell comprises an algal cell.
3. The rubber composition of claim 1 , wherein the bio-oil is present in an amount of 5 to 50 phr.
4. The rubber composition of claim 1 , wherein the bio-oil has a linoleic acid content of about 45% to about 65% by weight, an oleic acid content of about 20% to about 30% by weight, and a palmitic acid content of about 5% to about 15% by weight.
5. The rubber composition of claim 1 , wherein the functionalized polybutadiene is functionalized with a silicon containing functional group selected from the group consisting of an alkoxysilyl group, an alkylhalosilyl group, a siloxy group, an alkylaminosilyl group, and an alkoxyhalosilyl group.
6. The rubber composition of claim 1 , wherein the bio-oil has an oleic acid content of at least about 70% and a linoleic acid content of at least about 5%.
7. The rubber composition of claim 1 , wherein the bio-oil produced by a recombinant cell has either:
at least 50% of its carbon content as naphthenic carbons, or
at least 50% of its carbon content as paraffinic carbons.
8. A tire component comprising the rubber composition of claim 1 .
9. A tire tread comprising the rubber composition of claim 1 .
10. A method for improving at least one of the wear rate or E′ of a rubber composition, the method comprising
incorporating about 1 to about 100 phr of bio-oil produced by a recombinant cell into
at least one rubber including at least one diene monomer-containing polymer or copolymer,
5 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, and wherein the at least one rubber includes 10 to 90 phr of functionalized polybutadiene having a cis 1,4-bond content of at least 90%, wherein the at least one rubber does not include an oil-extended rubber.
11. The rubber method of claim 10 , wherein the recombinant cell comprises an algal cell.
12. The method of claim 10 , wherein the bio-oil is present in an amount of 5 to 50 phr.
13. The method of claim 10 , wherein the bio-oil has a linoleic acid content of about 45% to about 65% by weight, an oleic acid content of about 20% to about 30% by weight, and a palmitic acid content of about 5% to about 15% by weight.
14. The method of claim 10 , wherein the functionalized polybutadiene is functionalized with a silicon containing functional group selected from the group consisting of an alkoxysilyl group, an alkylhalosilyl group, a siloxy group, an alkylaminosilyl group, and an alkoxyhalosilyl group.
15. The method of claim 10 , wherein the bio-oil has an oleic acid content of at least about 70% and a linoleic acid content of at least about 5%.
16. The method of claim 10 , wherein the bio-oil produced by a recombinant cell has either:
at least 50% of its carbon content as naphthenic carbons, or
at least 50% of its carbon content as paraffinic carbons.
17. A method for controlling the variability of fatty acid content in a bio-oil-containing rubber composition, comprising
incorporating about 1 to about 100 phr of bio-oil produced by a recombinant cell with
at least one rubber including at least one diene monomer-containing polymer or copolymer,
5 to 150 phr of at least one reinforcing filler, and
a cure package,
thereby forming a bio-oil-containing rubber composition,
wherein the at least one rubber includes 10 to 90 phr of functionalized polybutadiene having a cis 1,4-bond content of at least 90% and wherein the at least one rubber does not include an oil-extended rubber.
18. The method of claim 17 , wherein the recombinant cell comprises an algal cell.
19. The method of claim 17 , wherein the functionalized polybutadiene is functionalized with a silicon containing functional group selected from the group consisting of an alkoxysilyl group, an alkylhalosilyl group, a siloxy group, an alkylaminosilyl group, and an alkoxyhalosilyl group.
20. The method of claim 17 , wherein the bio-oil has a linoleic acid content of about 45% to about 65% by weight, an oleic acid content of about 20% to about 30% by weight, and a palmitic acid content of about 5% to about 15% by weight.
21. The rubber composition of claim 1 , wherein the bio-oil has an oleic acid content of about 55% to about 65% and a linoleic acid content of about 15 to about 20%.
22. The method of claim 10 , wherein the bio-oil has an oleic acid content of about 55% to about 65% and a linoleic acid content of about 15 to about 20%.
23. The rubber composition of claim 1 , wherein the functionalized polybutadiene is present in an amount of about 50 to about 70 phr.
24. The method of claim 10 , wherein the functionalized polybutadiene is present in an amount of about 50 to about 70 phr.
25. The method of claim 17 , wherein the functionalized polybutadiene is present in an amount of about 50 to about 70 phr.