IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0631045
(2003-07-29)
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발명자
/ 주소 |
- Zimmer, Rene Jean
- Boes, Claude Ernest Felix
|
출원인 / 주소 |
- The Goodyear Tire &
- Rubber Company
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
7 |
초록
▼
A rubber composition containing a filler comprising 100 parts by weight of at least one rubber containing olefinic unsaturation, 1 to 250 phr of a filler, and 0.05 to 5.0 phr of zinc oxide particles having a diameter of less than 20 nanometers. This composition can be used to form a component of a t
A rubber composition containing a filler comprising 100 parts by weight of at least one rubber containing olefinic unsaturation, 1 to 250 phr of a filler, and 0.05 to 5.0 phr of zinc oxide particles having a diameter of less than 20 nanometers. This composition can be used to form a component of a tire, especially a tread of a tire.
대표청구항
▼
1. A tire having at least one component, the component comprising a rubber composition comprising (a) 100 parts by weight of at least one rubber containing olefinic unsaturation, (b) 1 to 250 phr of a filler, and (c) 0.1 to 1.5 phr of zinc oxide particles having a diameter of less than 10 nanometers
1. A tire having at least one component, the component comprising a rubber composition comprising (a) 100 parts by weight of at least one rubber containing olefinic unsaturation, (b) 1 to 250 phr of a filler, and (c) 0.1 to 1.5 phr of zinc oxide particles having a diameter of less than 10 nanometers.2. A tire according to claim 1, wherein said filler comprises primary particles of silica particles having a diameter in a range of 5 to 25 nanometers which form at least partially clusters or aggregates having a diameter in a range of from 40 nanometers to 500 nanometers.3. A tire according to claim 1 wherein said rubber containing olefinic unsaturation is selected from the group consisting of natural rubber, neoprene, polyisoprene, butyl rubber, halobutyl rubber, polybutadiene, styrene-butadiene copolymer, styrene/isoprene/butadiene rubber, methyl methacrylate-butadiene copolymer, isoprene-styrene copolymer, methyl methacrylate-isoprene copolymer, acrylonitrile-isoprene copolymer, acrylonitrile-butadiene copolymer, EPDM, silicon-coupled star-branched polymers, tin-coupled star-branched polymers and mixtures thereof.4. A tire according to claim 1, comprising at least one additional diene-based elastomer.5. A tire comprising a sulfur-vulcanized rubber composition which is prepared by heating the sulfur-vulcanized rubber composition to a temperature ranging from 100° C. to 200° C. in the presence of a sulfur-vulcanizing agent, the sulfur-vulcanized rubber composition comprising:(a) 100 parts by weight of at least one rubber containing olefinic saturation,(b) 1 to 250 phr of a filler, and(c) 0.1 to 1.5 phr of zinc oxide particles having a mean diameter of less than 10 nanometers.6. A tire according to claim 1, wherein said at least one component is a tread.7. A tire according to claim 5, wherein said filler comprises primary particles of silica particles having a diameter in a range of 5 to 25 nanometer which at least partially form clusters or aggregates having a diameter in a range of from 40 nanometer to 500 nanometer.8. A tire according to claim 5, wherein said rubber containing olefinic unsaturation is selected from the group consisting of natural rubber, neoprene, polyisoprene, butyl rubber, halobutyl rubber, polybutadiene, styrene-butadiene copolymer, styrene/isoprene/butadiene rubber, methyl methacrylate-butadiene copolymer, isoprene-styrene copolymer, methyl methacrylate-isoprene copolymer, acrylonitrile-isoprene copolymer, acrylonitrile-butadiene copolymer, EPDM, silicon-coupled star-branched polymers, tin-coupled star-branched polymers and mixtures thereof.9. A tire according to claim 5, wherein said rubber composition comprises at least one additional diene-based elastomer.10. A tire according to claim 5, wherein said at least one component is a tread.11. A method of processing a rubber composition, comprising the steps of (a) mixing 1 to 250 phr of a filler and 0.1 to 1.5 phr of zinc oxide particles having a diameter of less than 10 nanometers to form a first mixture; and (b) mixing the first mixture with 100 parts by weight of at least one rubber containing olefinic unsaturation.12. A method of processing a rubber composition comprising the steps of (a) mixing 0.1 to 1.5 phr of zinc oxide particles having a diameter of less than 10 nanometers with a processing additive to form a first mixture; and (b) mixing the first mixture with with a second mixture comprising from 1 to 250 phr of a filler and 100 parts by weight of at least one rubber containing olefinic unsaturation.13. A method of processing a rubber composition, comprising the steps of (a) preparing a masterbatch comprising 0.1 to 1.5 phr of zinc oxide particles having a mean diameter of less than 10 nanometers and at least one polymer; and (b) mixing the masterbatch with a mixture comprising 100 parts by weight of at least one rubber containing olefinic unsaturation and 1 to 250 phr of a filler.14. The method of claim 12 wherein the processing additive comprises an oil, a wax, a fatty acid or a resin.15. The method of claim 11, wherein said rubber composition is thermomechanically mixed in step (b) at a rubber temperature in a range of from 140° C. to 190° C. for a mixing time of from 1 to 20 minutes.16. The method of claim 12, wherein said rubber composition is thermomechanically mixed in step (b) at a rubber temperature in a range of from 140° C. to 190° C. for a mixing time of from 1 to 20 minutes.17. The method of claim 13, wherein said rubber composition is thermomechanically mixed in step (b) at a rubber temperature in a range of from 140° C. to 190° C. for a mixing time of from 1 to 20 minutes.
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