发明授权
- 专利标题： Copolymers useful as additives for lowering the cloud point of middle hydrocarbon distillates, and compositions of middle hydrocarbon distillates comprising them
- 专利标题（中）： 可用作降低中间烃馏出物浊点的添加剂的共聚物，以及包含它们的中间烃馏分的组成
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申请号： US502023申请日： 1983-06-07
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公开(公告)号： US4503182A公开(公告)日： 1985-03-05
- 发明人: Jean-Pierre Durand , Francois Dawans , Bernard Damin , Robert L/e/ ger
- 申请人： Jean-Pierre Durand , Francois Dawans , Bernard Damin , Robert L/e/ ger
- 申请人地址： FRX Rueil-Malmaison FRX Paris
- 专利权人： Institut Francais du Petrole,Elf France
- 当前专利权人： Institut Francais du Petrole,Elf France
- 当前专利权人地址： FRX Rueil-Malmaison FRX Paris
- 优先权： FRX8209997 19820607
- 主分类号： C08F8/32
- IPC分类号： C08F8/32 ; C10L1/236 ; C08K5/01
摘要：
Products useful as additives for lowering the cloud point of middle distillates have a molecular weight from 1,000 to 50,000, and are obtained by reacting a compound of the formulaR--Z--(CH.sub.2).sub.n NH].sub.m H (I)orHO--CH.sub.2 --R'--NH.sub.2 (II)where R is a monovalent saturated aliphatic radical of 1-30 carbon atoms, Z is --NH-- or oxygen, n is 2 to 4, m is zero or 1 to 4 and R' is a saturated divalent aliphatic radical of 1-18 carbon atoms, with a copolymer comprising recurrent units (A) from an alkyl ester of an unsaturated monocarboxylic acid and/or a vinyl ester of a saturated monocarboxylic acid, recurrent units (B) from diisobutylene and recurrent units (C) from an unsaturated .alpha.,.beta.-dicarboxylic compound.
公开/授权文献
- US5657846A Currency validator with split housing 公开/授权日：1997-08-19
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