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COMPOSITIONS BASED ON ETHYLENE-VINYL ACETATE COPOLYMERS AND THEIR USE AS ANTI-GELLING ADDITIVES OF PARAFFINIC CRUDE OILS
COMPOSITIONS BASED ON ETHYLENE-VINYL ACETATE COPOLYMERS AND THEIR USE AS ANTI-GELLING ADDITIVES OF PARAFFINIC CRUDE OILS
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机译:基于乙烯-乙酸乙烯酯共聚物的组合物及其作为石蜡油抗胶凝添加剂的用途
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摘要
A polymeric composition suitable for lowering the Pour Point of paraffinic crude oils comprising a synergic mixture including at least two ethylene-vinyl acetate copolymers respectively having an average molecular weight Mw lower than 130,000 Dalton (measured via GPC), a content of vinyl acetate monomer ranging from 15 to 50% by weight, with the proviso that the content of vinyl acetate monomer in the respective copolymers differs from one copolymer to another, by over 5%, on a weight basis.
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