Claims
- 1. A rubber composition comprising, based on 100 parts by weight (phr) of rubber,(A) from 10 to 90 phr of a terpolymer rubber comprised of repeat units derived from (1) 30 to 89 weight percent of a conjugated diene monomer which contains from 4 to 8 carbon atoms; (2) 10 to 50 weight percent of a vinyl substituted aromatic monomer; and (3) 1 to 20 weight percent of at least one co-monomer selected from the group consisting of the following general formulas I, II, and III: wherein R represents a hydrogen atom or an alkyl group containing from 1 to 8 carbon atoms; wherein R1 represents a saturated alcohol group containing from 1 to 8 carbon atoms; (B) from 10 to 90 phr of a rubber comprised of repeat units derived from (1) 30 to 99 weight percent of a conjugated diene monomer which contains from 4 to 8 carbon atoms; (2) zero to 50 weight percent of a vinyl substituted aromatic monomer; and (3) 1 to 20 weight percent of an olefinic unsaturated nitrile selected from the group consisting of acrylonitrile, methacrylonitrile, ethacrylonitrile, crotononitrile and mixtures thereof.
- 2. The rubber composition of claim 1 wherein said co-monomer is of formula I.
- 3. The rubber composition of claim 1 wherein said conjugated diene monomer is selected from the group consisting of 1,3-butadiene, isoprene, 1,3-ethylbutadiene, 1,3-pentadiene, 1,3-hexadiene, 1,3-cyclooctadiene, 1,3-octadiene and mixtures thereof.
- 4. The rubber composition of claim 1 wherein said vinyl substituted aromatic monomer is selected from the group consisting of styrene, alpha methyl styrene, vinyl toluene, 3-methyl styrene, 4-methyl styrene, 1-cyclohexylstyrene, 4-para-tolylstyrene, para-chlorostyrene, 4-tert-butyl styrene, 1-vinylnapthalene, 2-vinylnaphthalene and mixtures thereof.
- 5. The rubber composition of claim 1 wherein the Tg of the terpolymer elastomer ranges from 0° C. to −65° C.
- 6. The rubber composition of claim 1 wherein R is selected from the group consisting of a hydrogen atom and alkyl groups having from 1 to 4 carbon atoms.
- 7. The rubber composition of claim 1 wherein R1 is selected from the group consisting of a saturated alcohol group containing from 1 to 4 carbon atoms.
- 8. The rubber composition of claim 1 wherein said rubber composition comprises(A) from 25 to 75 phr of a terpolymer rubber comprised of repeat units derived from (1) 50 to 80 weight percent of 1,3-butadiene; (2) 20 to 40 weight percent of styrene; and (3) 1 to 5 weight percent of a co-monomer selected from hydroxymethyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 3-phenoxy-2-hydroxypropyl methacrylate, hydroxybutyl methacrylate, hydroxyhexyl methacrylate and hydroxyoctyl methacrylate; (B) from 25 to 75 phr of a rubber comprised of repeat units derived from (1) 60 to 80 weight percent of 1,3-butadiene; (2) 20 to 40 weight percent of a styrene aromatic monomer; and (3) 1 to 5 weight percent of a acrylonitrile.
- 9. The rubber composition of claim 1 wherein(A) from 10 to 90 phr is said terpolymer; (B) from 10 to 90 phr is said rubber compound of repeat units derived from a conjugated diene monomer, vinyl substituted aromatic monomer and olefinic unsaturated nitrile; and (C) from zero to 80 phr of at least one additional rubber selected from the group consisting of cis 1,4-polyisoprene rubber, cis 1,4-polybutadiene, high vinyl polybutadiene, styrene/butadiene copolymers, styrene/isoprene/butadiene terpolymers, 3,4-polyisoprene, isoprene/butadiene copolymers and isoprene/styrene copolymers.
- 10. The rubber composition of claim 9 wherein said additional rubber ranges from 10 to 50 phr.
- 11. A tire having a rubber containing component comprising, based on 100 parts by weight (phr) of rubber(A) from 10 to 90 phr of a terpolymer rubber comprised of repeat units derived from (1) 30 to 89 weight percent of a conjugated diene monomer which contains from 4 to 8 carbon atoms; (2) 10 to 50 weight percent of a vinyl substituted aromatic monomer; and (3) 1 to 20 weight percent of at least one of co-monomer selected from the group consisting the following general formulas I, II, and III: wherein R represents a hydrogen atom or an alkyl group containing from 1 to 8 carbon atoms; wherein R1 represents a saturated alcohol group containing from 1 to 8 carbon atoms; (B) from 10 to 90 phr of a rubber comprised of repeat units derived from (1) 30 to 99 weight percent of a conjugated diene monomer which contains from 4 to 8 carbon atoms; (2) zero to 50 weight percent of a vinyl substituted aromatic monomer; and (3) 1 to 20 weight percent of an olefinic unsaturated nitrile selected from the group consisting of acrylonitrile, methacrylonitrile, ethacrylonitrile, crotononitrile and mixtures thereof.
- 12. The tire of claim 11 wherein said co-monomer is of formula I.
- 13. The tire of claim 11 wherein said conjugated diene monomer is selected from the group consisting of 1,3-butadiene, isoprene, 1,3-ethylbutadiene, 1,3-pentadiene, 1,3-hexadiene, 1,3-cyclooctadiene, 1,3-octadiene and mixtures thereof.
- 14. The tire of claim 11 wherein said vinyl substituted aromatic monomer is selected from the group consisting of styrene, alpha methyl styrene, vinyl toluene, 3-methyl styrene, 4-methyl styrene, 1-cyclohexylstyrene, 4-para-tolylstyrene, para-chlorostyrene, 4-tert-butyl styrene, 1-vinylnapthalene, 2-vinylnaphthalene and mixtures thereof.
- 15. The tire of claim 11 wherein the Tg of the terpolymer elastomer ranges from 0° C. to −65° C.
- 16. The tire of claim 11 wherein R is selected from the group consisting of a hydrogen atom and alkyl groups having from 1 to 4 carbon atoms.
- 17. The tire of claim 11 wherein R1 is selected from the group consisting of a saturated alcohol group containing from 1 to 4 carbon atoms.
- 18. The tire of claim 11 wherein said rubber composition comprises(A) from 25 to 75 phr of a terpolymer rubber comprised of repeat units derived from (1) 50 to 80 weight percent of 1,3-butadiene; (2) 20 to 40 weight percent of styrene; and (3) 1 to 5 weight percent of a co-monomer selected from hydroxymethyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, 3-phenoxy-2-hydroxypropyl methacrylate, hydroxybutyl methacrylate, hydroxyhexyl methacrylate and hydroxyoctyl methacrylate; (B) from 25 to 75 phr of a rubber comprised of repeat units derived from (1) 60 to about 80 weight percent of 1,3-butadiene; (2) 20 to 40 weight percent of a styrene; and (3) 1 to 5 weight percent of a acrylonitrile.
- 19. The tire of claim 11 wherein(A) from 10 to 90 phr is said terpolymer; (B) from 10 to 90 phr is said rubber compound of repeat units derived from a conjugated diene monomer, vinyl substituted aromatic monomer and olefinic unsaturated nitrile; and (C) from zero to 80 phr of at least one additional rubber selected from the group consisting of cis 1,4-polyisoprene rubber, cis 1,4-polybutadiene, high vinyl polybutadiene, styrene/butadiene copolymers, styrene/isoprene/butadiene terpolymers, 3,4-polyisoprene, isoprene/butadiene copolymers and isoprene/styrene copolymers.
- 20. The tire of claim 19 wherein said additional rubber ranges from 10 to 50 phr.
Parent Case Info
The Applicants hereby incorporate by reference prior U.S. Provisional Application Ser. No. 60/335,932, filed on Nov. 2, 2001.
US Referenced Citations (10)
Provisional Applications (1)
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Number |
Date |
Country |
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60/335932 |
Nov 2001 |
US |