Claims
- 1. A process for improving the processability, storage stability and/or cure rate of an uncured silica reinforced rubber composition where silica comprises the major filler in said reinforced rubber composition, comprising combining a mixture comprising rubber, silica and at least one organic compound comprising an organic compound of relatively low molecular weight that contains at least one functional group, wherein said functional group is at least an epoxy functional group located in terminal or sterically unhindered positions in the molecule of said organic compound, or said organic compound comprises an abietyl compound, styrenated resorcinol formaldehyde epoxy polymer compound, or an ester hydroxyl organic compound containing at least one hydroxyl group, at least one ester group, and optionally an ether group, where the molecular weight of said organic compound of relatively low molecular weight is less than about 7,000.
- 2. A process according to claim 1, wherein said organic compound is ethoxylated (5 moles) dehydroabietylamine in admixture with dehydroabietylamine, ethoxylated (11 moles) dehydroabietylamine in admixture with dehydroabietylamine, the reaction product of resorcinol, formaldehyde, styrene and Bisphenol A diglycidylether polymer, or an ester diol.
- 3. A process according to claim 2 where said ester diol is benzoic acid, 4-hydroxy-3-{(1-oxoneodecyl)oxy} propyl ester.
- 4. A process according to claim 1 wherein the organic compound is N,N-diglycidylaniline, N,N-diglycidyl-4-glycidyl oxyaniline, polypropylene glycol diglycidyl ether, isopropylglycidylether, cyclohexylmethyl-3,4-epoxycylcohexanecarboxylate, diglycidyl-1,2-cyclohexane dicarboxylate, 2,3-epoxypropyl benzene, exo-2,3-epoxynorbornane, poly(bisphenol A-co-epichlorohydrin) glycidyl 4-methyoxy phenyl ether, diglycidyl ether, poly (phenylglycidyl ether)-co-formaldehyde, alkyl (C8-C12) glycidyl ethers, butyl glycidyl ether, cresyl glycidyl ether, phenyl glycidyl ether, nonyl phenyl glycidyl ether, nonyl phenyl glycidyl ether, p-tertiary butyl phenyl glycidyl ether, 2-ethylhexyl glycidyl ether, diglycidyl ether of 1,4-butanediol, diglycidyl ether of neopentyl glycol, diglycidyl ether of aliphatic polyol, polyglycidyl ether of caster oil, dimer acid diglycidyl ester, 1,2-epoxy-9-decene, -(2,3-epoxypropyl)phthalimide or a vinyl glycidyl chalcogenide and combinations thereof.
- 5. A process according to claim 1 wherein said organic compound is present in an amount from about 0.1 to about 30 phr, and said silica is present in an amount greater than about 15 phr.
- 6. A process according to claim 1 wherein said silica is precipitated silica or pyrogenic silica or combinations thereof and said mixture contains secondary fillers in lesser amounts than said silica, wherein said secondary fillers are carbon black, clay, mica, talc, inorganic silicates, bentonite, titanium dioxide, aramid pulp, short vegetable fibers, short synthetic polymer fibers, starch, calcium carbonate, or calcium sulfate or combinations thereof, and said organic compounds are present in an amount from about 0.1 to about 30 phr.
- 7. A process according to claim 1 wherein said organic compounds are selected to improve processability and reduce the cure time of said rubber composition and are N,N-diglycidyl aniline, N,N-diglycidyl-4-glycidyl oxyaniline, polypropylene glycol diglycidyl ether, diglycidyl-1,2-cyclohexane dicarboxylate, exo-2,3-epoxynarbornane, poly (Bisphenol A-co-epichlorohydrin) glycidyl end-capped, glycidyl butyrate, glycidyl neodecanoate, poly(phenylglycidylether)-co-formaldehyde, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate, ethoxylated (5 moles) dehydroabietylamine in admixture with dehydroabietylamine, ethoxylated (11 moles) dehydroabietylamine in admixture with dehydroabietylamine, the reaction product of resorcinol, formaldehyde, styrene and Bisphenol A diglycidylether polymer, or benzoic acid, 4 hydroxy-3-{(1-oxoneodecyl)oxy} propyl ester.
- 8. A process according to claim 1 wherein said rubber is natural rubber, epoxidized natural rubber, methacrylated natural rubber, synthetic polyisoprene, polybutadiene, styrene butadiene copolymers, styrene/isoprene/butadiene copolymers, para or ortho methylstyrene/butadiene rubbers, isoprene/butadiene copolymers, para or ortho methyl styrene/butadiene/isoprene terpolymers, ethylene/propylene/diene rubbers, butyl rubber, isobutylene-isoprene copolymer and its halogenated derivatives, brominated para-methyl styrene isobutylene rubber, butadiene/styrene/acrylonitrile terpolymers, isoprene/styrene/acrylonitrile terpolymers, butadiene/acrylonitrile copolymers, isoprene/acrylonitrile copolymers, butadiene/isoprene/acrylonitrile terpolymers, butadiene-alkyl acrylate or methacrylate copolymers, styrene/butadiene/alkyl acrylate or alkyl methacrylate rubbers, modified styrene/butadiene or butadiene rubbers with silica or carbon black reactive functional groups, and combinations of the aforementioned rubbers with each other and/or with natural rubber.
- 9. A process according to claim 8 wherein said rubber composition further includes processing aids, aromatic oils, napthenic oils, paraffin oils, rosin oils, antioxidants, antiozonants, waxes, fillers, resins, adhesions promoters, silica coupling systems, crosslinking systems or curing systems and combinations thereof.
- 10. A process according to claim 9 wherein said silica coupling systems comprise polyfunctional organosilanes.
- 11. The process of claim 10 wherein said polyfunctional organosilane comprises bis(3-triethoxysilylpropyl)tetrasulfide.
- 12. A product produced by the process of claim 1 optionally cured with a rubber crosslinking system or curing system.
- 13. A product made according to the process of claim 2, optionally cured with a rubber crosslinking system or curing system.
- 14. A product made according to the process of claim 3, optionally cured with a rubber crosslinking system or curing system.
- 15. A product made according to the process of claim 4, optionally cured with a rubber crosslinking gent or curing system.
- 16. A product made according to the process of claim 8, optionally cured with a rubber crosslinking system or curing system.
- 17. An article of manufacture comprising a tire made from the product of claim 16. optionally cured with a rubber crosslinking system or curing system and optionally containing processing aids, aromatic oils, napthenic oils, parraffin oils, rosin oils, antioxidants, antiozonants, waxes, fillers, resins, adhesion promoters, silica coupling systems, crosslinking systems or curing systems and combinations thereof.
- 18. An article of manufacture comprising tire elastomeric components made from the product of claim 16, wherein said tire component is a tire carcass, tread cushion, overlay, sidewall, innerliner, bead filler, liner cushion, wing tip, or bead or bead area compound, optionally cured with a rubber crosslinking system or curing system and optionally containing processing aids, aromatic oils, napthenic oils, paraffin oils, rosin oils, antioxidants, antiozonants, waxes, fillers, resins, adhesion promoters, silica coupling systems, crosslinking systems or curing systems and combinations thereof.
- 19. An article of manufacture comprising a curing bladder made from the product of claim 16, optionally cured with a rubber crosslinking system or curing system and optionally containing processing aids, aromatic oils, napthenic oils paraffin oils, rosin oils, antioxidants, antiozonants, waxes, fillers, resins, adhesion promoters, silica coupling systems, crosslinking systems or curing systems and combinations thereof.
- 20. An article of manufacture according to claim 19 made from butyl rubber or brominated paramethyl sytrene isobutylene rubber.
- 21. A rubber composition of matter comprising a mixture of rubber, silica as the major filler in said composition, and at least one organic compound comprising an organic compound of relatively ow molecular weight, and containing at least one functional group, wherein said functional group is at least an epoxy, epoxy/ether, epoxy/hydroxyl, epoxy/ester, epoxy/amine, ether/amine, cycloaliphatic ether/hydroxyl, episulfide, episulfide/amine, episulfide/ether, episulfide/hydroxyl, or episulfide/ester functional group located in a terminal or sterically unhindered position in the molecule of said organic compound, or said organic compound comprises an abietyl comound, styrenated resorcinol formaldehyde epoxy polymer compound, or an ester hydroxyl organic compound having at least one hydroxyl group, at least one ester group, and optionally an ether group, or the reaction products of said mixture, where the molecular weight of said organic compound having relatively low molecular weight is less than about 7,000.
- 22. A composition of the matter according to claim 21, wherein said organic compound is ethoxylated (5 moles) dehydroabietylamine in admixture with dehydroabietylamine, ethoxylated (11 moles) dehydroabietylamine in admixture with dehydroabietylamine, the reaction product of resorcinol, formaldehyde, styrene and Bisphenol A diglycidylether polymer, or an ester diol.
- 23. The composition of matter of claim 22 where said ester diol comprises benzoic acid, 4 hydroxy-3-{(1-oxoneodecyl)oxy} propyl ester.
- 24. A composition of the matter according to claim 21 wherein the low molecular weight organic compound is N,N-diglycidyl aniline, N,-N-diglycidyl-4-glycidyl oxyaniline, polypropylene glycol diglycidyl ether, isopropylglycidylether, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate, diglycidyl-1,2-cyclohexane dicarboxylate, 2,3-epoxypropyl benzene, exo-e,3-epoxynorbornane, poly(bisphenol A-co-epichlorohydrin) glycidyl end-capped, glycidyl butyrate, glycidyl neodecanoate, glycidyl 4-methoxy phenyl ether, 2-ethyl hexyl diglycidyl ether, poly (phenylglycidyl ether)-co-formaldehyde, alkyl (C8-C12) glycidyl ethers, butyl glycidyl ether, cresyl glycidyl ether, phenyl glycidyl ether, nonyl phenyl glycidyl ether, p-tertiary butyl phenyl glycidyl ether, diglycidyl ether of 1,4-butanediol, diglycidyl ether of neopentyl glycol, diglycidyl ether of cyclohexane dimethanol, trimethylol ethane trigylcidyl ether, trimethylol propane triglycidyl ether, diglycidyl ether of dibromoneopentyl glycol, polyglycol diepoxide, polyglycidyl ether or aliphatic polyol, polyglycidyl ether of castor oil, dimer acid diglycidyl ester, 1,2-epoxy-9-decene, 2,3-epoxypropyl)phthalimide or a vinyl glycidyl chalcogenide and combinations thereof.
- 25. A composition of matter according to claim 21, wherein said organic compound is present in an amount from about 0.1 to about 30 phr, and said silica is present in an amount greater than about 15 phr.
- 26. A composition of matter according to claim 21, wherein said silica is precipitated silica or pyrogenic silica or combinations thereof, and said mixture contains secondary fillers in lesser amounts than said silica, wherein said secondary fillers are carbon black, clay, mica, talc, inorganic silicates, bentonite, titanium dioxide, aramid pulp, short vegetable fibers, short synthetic polymer fibers, starch, calcium carbonate, or calcium sulfate or combinations thereof, and said organic compounds are present in an amount from about 0.1 to about 30 phr.
- 27. A composition of matter according to claim 21, wherein said compounds are selected to improve processability and reduce the cure time of said rubber composition and are N,N-diglycidyl aniline, N,N-diglycidyl-4-glycidyl oxyaniline, polypropylene glycol diglycidyl ether, diglycidyl-1,2-cyclohexane dicarboxylate, exo-3,3-epoxynorbornane, poly (Bisphenol A-co-epichlorohydrin) glycidyl end-capped, glycidyl butyrate, glycidyl neodecanoate, poly(phenylglycidylether)-co-formaldehyde, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate, ethoxylated (5 moles) dehydroabietylamine in admixture with Dehydroabietylamine, ethoxylated (11 moles) dehydroabietylamine in admixture with dehydroabietylamine, the reaction product of resorcinol, formaldehyde and Bisphenol A diglycidylether polymer, or an ester diol comprising benzoic acid, 4 hydroxy-3-{(1-oxoneodecyl)oxy} propyl ester.
- 28. A composition of matter according to claim 21 wherein said rubber is natural rubber, epoxidized natural rubber, methacrylated natural rubber, synthetic polyisoprene, polybutadiene, styrene butadiene copolymers, styrene/isoprene/butadiene copolymers, para or ortho methylstyrene/butadiene rubbers, isoprene/butadiene copolymers, paraor ortho methyl styrene/butadiene/isoprene terpolymers, ethylene/propylene/diene rubbers, butyl rubber isobutylene-isoprene copolymer and its halogenated derivatives, brominated para-methyl styrene isobutylene rubber, butadiene/styrene/acrylonitrile terpolymers, isoprene/styrene/acrylonitrile terpolymers, butadiene/acrylonitrile copolymers, isoprene/acrylonitrile copolymers, butadiene/isoprene/acrylonitrile terpolymers, butadiene-alkyl acrylate or methacrylate copolymers, styrene/butadiene/alkyl acrylate or alkyl methacrylate rubbers, modified styrene/butadiene or butadiene rubbers with silica or carbon black reactive functional groups, and combinations of the aforementioned rubbers with each other and/or with natural rubber.
- 29. A composition of matter according to claim 28 wherein said rubber composition a further includes processing aids, aromatic oils, hydrogenated aromatic oils, napthenic oils, paraffin oils, rosin oils, antioxidants, antiozonants, waxes, fillers, resins, adhesion promoters, silica coupling systems, crosslinking systems or curing systems and combinations thereof.
- 30. A composition according to claim 29 wherein said silica coupling systems comprise polyfunctional organosilanes.
- 31. The composition of claim 30, wherein said polyfunctional organosilane comprises bis(3-triethoxysilylpropyl)tetrasulfide.
Parent Case Info
[0001] This is a continuation-in-part application of Ser. No. 09/514,461 filed Feb. 29, 2000 incorporated herein by reference in its entirety.
Divisions (1)
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Number |
Date |
Country |
Parent |
09571503 |
May 2000 |
US |
Child |
10235919 |
Sep 2002 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09514461 |
Feb 2000 |
US |
Child |
09571503 |
May 2000 |
US |