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1. 发明授权

US06475963B1 Carboxylate-vinyl ester copolymer blend compositions for lubricating oil flow improvement 有权
标题翻译：用于润滑油流动改进的羧酸酯 - 乙烯酯共聚物共混物组合物
公开(公告)号：US06475963B1
公开(公告)日：2002-11-05
申请号：US09846469
申请日：2001-05-01
申请人： Ricardo A. Bloch , David J. Martella
发明人： Ricardo A. Bloch , David J. Martella
IPC分类号： C10M14516
CPC分类号： C10M169/041 , C10M145/16
摘要： Compositions for improving at least the low temperature flow properties of high viscosity index, high saturates, low sulfur lubricating oils (also known as American Petroleum Institute Group II and Group III oils). The compositions comprise a mixture of lubricating oil flow improvers (LOFIs) that are specified first and second component copolymers of unsaturated dicarboxy esters, including a first component which is a polymer or copolymer of a carboxylate containing pendent ester groups wherein the average side chain carbon number is between 11.0 and 12.4, such as dialkyl fumarate/vinyl acetate copolymer, and a second component which also is a polymer or copolymer such as dialkyl fumarate/vinyl acetate copolymer, but wherein the average side chain carbon number is between 12.7 and 15.0. Alternatively, each of the polymers or copolymers can be esterified styrene/maleic anhydride copolymer, or esterified olefin/maleic anhydride copolymer provided that each of the two components has the specified, different average side chain carbon numbers.
摘要翻译：用于改善高粘度指数，高饱和度，低硫润滑油（也称为美国石油研究所II类和III类油）的低温流动性的组合物。组合物包含润滑油流动改进剂（LOFI）的混合物，其是不饱和二羧基酯的第一和第二组分共聚物，包括第一组分，其是含有侧链酯基的羧酸酯的聚合物或共聚物，其中平均侧链碳数例如富马酸二烷基酯/乙酸乙烯酯共聚物，也是富马酸二烷基酯/乙酸乙烯酯共聚物等聚合物或共聚物的第二成分，平均侧链碳数为12.7〜15.0。或者，每种聚合物或共聚物可以是酯化苯乙烯/马来酸酐共聚物或酯化的烯烃/马来酸酐共聚物，只要两种组分中的每一种具有指定的不同的平均侧链碳数。

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