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Process for preparing copolymers of ethylene and vinyl esters or mixtures with other ethylenically unsaturated monomers
Process for preparing copolymers of ethylene and vinyl esters or mixtures with other ethylenically unsaturated monomers
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机译:制备乙烯和乙烯基酯的共聚物或与其他烯键式不饱和单体的混合物的方法
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摘要
Polymers of 1,000 to 50,000 and preferably of 1,000 to 2,900 number average molecular weight, comprising 3 to 40 molar proportions of ethylene per molar proportion of an ethylenically unsaturated monomer, are prepared by free radical catalysts in a solvent at temperatures of less than 130°C. in order to minimize ethylene branching, for use as wax crystal modifying agents, e.g. pour depressants and flow improvers for distillate mineral oil, e.g. middle distillate fuel oil.
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