发明公开
EP0270071A2 Process for preparing modified diene polymer rubbers
失效
Verfahren zur Herstellung von modifizierten Kautschuk-Dienpolymeren。
- 专利标题： Process for preparing modified diene polymer rubbers
- 专利标题（中）： Verfahren zur Herstellung von modifizierten Kautschuk-Dienpolymeren。
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申请号： EP87117741.6申请日： 1987-12-01
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公开(公告)号： EP0270071A2公开(公告)日： 1988-06-08
- 发明人: Takao, Hiroyoshi , Imai, Akio , Seki, Tomoaki , Tsuji, Mitsuji
- 申请人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 申请人地址： Kitahama 4-chome 5-33 Chuo-ku Osaka 541 JP
- 专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人地址： Kitahama 4-chome 5-33 Chuo-ku Osaka 541 JP
- 代理机构： Türk, Gille, Hrabal, Leifert
- 优先权： JP287091/86 19861201; JP315210/86 19861227; JP315211/86 19861227; JP19262/87 19870128; JP19263/87 19870128; JP32782/87 19870216
- 主分类号： C08C19/42
- IPC分类号： C08C19/42
摘要：
A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of a nitro compound, a phosphoryl chloride compound of the formula:
wherein R¹ to R⁴ are independently an alkyl group, and an aminosilane compound of the formula:
wherein R⁵ to R⁷ are independently an alkyl group or an alkoxyl group, R⁸ and R⁹ are independently an alkyl group, and n is an integer,
said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent. The modified diene polymers can be incorporated with usual rubber additives to provide rubber compositions for various purposes, and the cured products show an increased impact resilience and a reduced hardness at low temperatures.
wherein R¹ to R⁴ are independently an alkyl group, and an aminosilane compound of the formula:
wherein R⁵ to R⁷ are independently an alkyl group or an alkoxyl group, R⁸ and R⁹ are independently an alkyl group, and n is an integer,
said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent. The modified diene polymers can be incorporated with usual rubber additives to provide rubber compositions for various purposes, and the cured products show an increased impact resilience and a reduced hardness at low temperatures.
公开/授权文献
- EP0270071B1 Process for preparing modified diene polymer rubbers 公开/授权日：1994-03-02
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