发明授权
US06599335B1 Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives
有权
基于乙烯和不饱和羧酸酯的共聚物及其作为矿物油添加剂的用途
- 专利标题： Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives
- 专利标题（中）： 基于乙烯和不饱和羧酸酯的共聚物及其作为矿物油添加剂的用途
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申请号： US09706656申请日： 2000-11-06
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公开(公告)号： US06599335B1公开(公告)日： 2003-07-29
- 发明人: Matthias Krull , Markus Kupetz , Raimund Wildfang
- 申请人： Matthias Krull , Markus Kupetz , Raimund Wildfang
- 优先权： DE19729057 19970708
- 主分类号： C10L118
- IPC分类号： C10L118
摘要：
Copolymers based on ethylene and unsaturated carboxylic esters and their use as mineral oil additives. The invention relates to copolymers of low olefins and vinyl esters, containing a) from 85 to 97 mol % of bivalent structural units of the formula 1 —CH2—CR1R2— 1 in which R1 and R2, independently of one another, are hydrogen or methyl, and b) at least 3 mol % of bivalent structural units of the formula 2 in which R3 is saturated, branched C6-C16-alkyl which has a tertiary carbon atom, wherein R3 is bonded by its tertiary carbon atom to the carboxyl function. The copolymers according to the invention are used as flow improvers for mineral oil distillates.