发明名称 |
Asphaltene dispersants - inhibitors |
摘要 |
An asphalt/asphaltene dispersant comprising an admixture of polymer A and polymer B ranging from 100 to 10 weight percent A to from 10 to 100 weight percent B. Wherein polymer A is an alkyl substituted phenol-formaldehyde liquid resin having a weight average molecular weight ranging from about 1000 to about 20,000 and an alkyl substituent containing from 4 to 24 carbon atoms, with alkyl substituent may be linear or branched alkyl group. Polymer B is a hydrophilic-lipophilic vinylic polymer.
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申请公布号 |
US5021498(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890433885 |
申请日期 |
1989.11.08 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
STEPHENSON, WILLIAM K.;KAPLAN, MORRIS |
分类号 |
C08L33/04;C08L61/04;C09K8/524 |
主分类号 |
C08L33/04 |
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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