发明名称 |
Pour point improving additives for mineral oils |
摘要 |
Polymers adaptable to use as pour point lowering additives for petroleum oils, said polymers comprising as comonomers therein (a) from 10 to 30 mole percent of methyl methacrylate, (b) from 10 to 70 mole percent of alkyl methacrylates having linear alkyl groups with from 16 to 30 carbon atoms in the alkyl group, (c) from 10 to 80 mole percent of alkyl methacrylates having linear alkyl groups with from 4 to 15 carbon atoms in the alkyl group and/or having branched alkyl groups with from 4 to 40 carbon atoms in the alkyl group, (d) from 0 to 30 mole percent of a free-radically polymerizable nitrogen-containing monomer having dispersing action, and petroleum oils containing such polymers as pour point lowering additives.
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申请公布号 |
US4867894(A) |
申请公布日期 |
1989.09.19 |
申请号 |
US19880185317 |
申请日期 |
1988.04.20 |
申请人 |
ROEHM GMBH |
发明人 |
PENNEWISS, HORST;JOST, HEINZ;KNOELL, HELMUT |
分类号 |
C08F220/10;C08F220/12;C08L91/00;C08L91/08;C10L1/196;C10L1/236;C10M145/14;C10M149/02;C10M149/04;C10M149/06;C10N30/02 |
主分类号 |
C08F220/10 |
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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