发明授权
US5534175A Copolymers of unsaturated fatty esters, their use as viscosity improver
and lubricating oil containing said copolymers
失效
不饱和脂肪酸酯的共聚物,它们用作粘度改进剂和含有所述共聚物的润滑油
- 专利标题: Copolymers of unsaturated fatty esters, their use as viscosity improver and lubricating oil containing said copolymers
- 专利标题(中): 不饱和脂肪酸酯的共聚物,它们用作粘度改进剂和含有所述共聚物的润滑油
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申请号: US295696申请日: 1994-11-11
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公开(公告)号: US5534175A公开(公告)日: 1996-07-09
- 发明人: Robert Cantiani
- 申请人: Robert Cantiani
- 申请人地址: OH Wickliffe
- 专利权人: The Lubrizol Corporation
- 当前专利权人: The Lubrizol Corporation
- 当前专利权人地址: OH Wickliffe
- 优先权: FRX92/15780 19921228
- 主分类号: C08F220/18
- IPC分类号: C08F220/18 ; C10M145/14
摘要:
Copolymers of unsaturated fatty esters capable of being obtained by copolymerization in a mineral oil of a percentage a) of an ester of a carboxylic acid A.sub.1, of a percentage b) of an ester of a carboxylic acid A.sub.2 and a percentage c) of an ester of a carboxylic acid A.sub.3, wherein a), is between 12 and 20%, c) is between 14 and 30% and b), which is preferably 72 and 45%, is such that a)+b)+c)=100%. The copolymers in accordance with the invention are reemployed as viscosity improver in lubricating oils.
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