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Graft polymers, their preparation and their use as pour point depressants and flow improvers for crude oils, residual oils and middle distillates
Graft polymers, their preparation and their use as pour point depressants and flow improvers for crude oils, residual oils and middle distillates
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机译:接枝聚合物,它们的制备及其在原油,渣油和中间馏分油中的降凝剂和流动改进剂的用途
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摘要
The invention relates to graft polymers comprising from 20 to 99.9% by weight of an ethylene copolymer (base polymer) and from 0.1 to 80% by weight of a graft component. The base polymer contains from 30 to 95% by weight of ethylene and from 5 to 70% by weight of vinyl esters of saturated, aliphatic C2- to C18-monocarboxylic acids or from 4 to 50% by weight of vinyl esters of saturated, aliphatic C2- to C18-monocarboxylic acids and from 1 to 20% by weight of linear or branched C3- to C18-monoolefins. Graft components are N-substituted alpha,beta-unsaturated dicarboximides and/or dicarboxamides and/or dicarboxylic acid monoamides and/or ammonium salts of the monoamides. The graft polymers are used to improve the flow properties of paraffin-containing mineral oils and mineral oil distillates.
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机译:本发明涉及接枝聚合物,其包含20至99.9重量%的乙烯共聚物(基础聚合物)和0.1至80重量%的接枝组分。基础聚合物包含30至95重量%的乙烯和5至70重量%的饱和脂族C 2至C 18一元羧酸的乙烯基酯或4至50重量%的饱和脂族的乙烯基酯。 C 2至C 18单羧酸和1至20重量%的直链或支链C 3至C 18单烯烃。接枝组分是N-取代的α,β-不饱和二羧酰亚胺和/或二羧酰胺和/或二羧酸单酰胺和/或单酰胺的铵盐。接枝聚合物用于改善含石蜡的矿物油和矿物油馏出物的流动性。
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