HIGH VISCOSITY INDEX LUBRICANTS BY ISOALKANE ALKYLATION

    公开(公告)号:US20170335218A1

    公开(公告)日:2017-11-23

    申请号:US15159205

    申请日:2016-05-19

    IPC分类号: C10M105/04 C07C2/62

    摘要: An isoalkane alkylate base oil and a process to make an isoalkane alkylate base oil having a VI higher than 90, comprising: a. selecting an isoalkane feed containing at least one isoalkane and an olefin feed containing at least one linear olefin such that a combined carbon number of the isoalkane feed and the olefin feed is from 20 to 60; and b. alkylating the isoalkane feed with the olefin feed in the presence of an acidic alkylation catalyst under alkylation conditions to make the isoalkane alkylate base oil having the VI higher than 90; wherein the isoalkane alkylate base oil has a kinematic viscosity at 100° C. from 2 to 30 mm2/s, a pour point less than 0° C., and a bromine index less than 2000 mg Br/100 g.

    Working fluid composition for refrigerator

    公开(公告)号:US09725630B2

    公开(公告)日:2017-08-08

    申请号:US14777583

    申请日:2014-03-14

    IPC分类号: C09K5/04 C10M105/32

    摘要: The present invention provides a working fluid composition for a refrigerating machine, comprising: a refrigerating machine oil comprising, as a base oil, a mixed ester of (A) a complex ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a C6-C12 polybasic acid, and a C4-C18 monohydric alcohol or a C4-C18 monocarboxylic fatty acid, and (B) a polyol ester obtainable by synthesis of at least one polyhydric alcohol selected from neopentyl glycol, trimethylolpropane, pentaerythritol and dipentaerythritol, and a C4-C18 monocarboxylic fatty acid, in a mass ratio of (A) the complex ester/(B) the polyol ester of 5/95 to 95/5; and a hydrocarbon refrigerant having 3 or 4 carbon atoms, wherein a refrigerant dissolved viscosity, at a temperature of 80° C. and an absolute pressure of 1.5 MPa, is 1.0 mm2/s or more.