发明名称 |
Process for graft copolymerization |
摘要 |
What is disclosed are the method of making a lubricating-oil additive which improves the viscosity index and has a dispersing and detergent action, which method comprises graft copolymerizing, onto an oil-soluble base polymer, from 0.5 to 10 parts of a polymerizable lactam together with 0.1 to 3 parts of a polymerizable N-heterocyclic compound, said parts being by weight of said base polymer, and the lubricating-oil additives so produced.
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申请公布号 |
US4338418(A) |
申请公布日期 |
1982.07.06 |
申请号 |
US19800216257 |
申请日期 |
1980.12.15 |
申请人 |
ROEHM GMBH |
发明人 |
JOST, HEINZ;KNOELL, HELLMUTH;MARKERT, GERHARD;PENNEWISS, HORST |
分类号 |
C08F255/04;C08F265/04;C08F291/00;C10M149/10;C10N30/02;C10N30/04;C10N40/25;(IPC1-7):C08F255/02 |
主分类号 |
C08F255/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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