Polyol ester based-lubricant
    2.
    发明公开
    Polyol ester based-lubricant 失效
    Schmiermittel auf Basis von Polyolester

    公开(公告)号:EP0801129A3

    公开(公告)日:1997-12-29

    申请号:EP97302400

    申请日:1997-04-08

    摘要: A polyol ester-based lubricant comprising a polyol ester (A) and a polyol ester (B); the polyol ester (A) comprising an ester of a neopentyl polyol and an acid residue having a carbon number of 6-17, in which the alpha-carbon in the acid residue of the polyol ester is tertiarily branched, and when alkyl groups having 4 or more carbon atoms are bonded to the alpha-carbon, the alkyl groups are branched, and the polyol ester (B) comprising an ester of a neopentyl polyol and an acid residue having a carbon number of 6-17, in which the alpha-carbon in the acid residue of the polyol ester is secondarily or tertiarily branched and alkyl groups bonded to the alpha-carbon are straight is provided. This polyol ester-based lubricant has high performance, as demonstrated by high compatibility with substitute fluorocarbons in a kinematic viscosity range of 28 to 40 cst at 40 DEG C, excellent hydrolysis resistance, and a low pour point.

    摘要翻译: 包含多元醇酯(A)和多元醇酯(B)的多元醇酯基润滑剂; 包含新戊基多元醇的酯和碳原子数为6-17的酸残基的多元醇酯(A),其中多元醇酯的酸残基中的α-碳是三分支的,当烷基具有4个 或更多的碳原子与α-碳键合,烷基是支链的,并且包含新戊基多元醇的酯和碳数为6-17的酸残基的多元醇酯(B),其中α- 提供多元醇酯的酸残基中的碳是二次或三次支化的,并且与α-碳结合的烷基是直链的。 这种多元醇酯基润滑剂具有高性能,如在40℃下运动粘度范围为28至40cst,优异的耐水解性和低倾点的替代碳氟化合物的高相容性所证明的。