发明授权
- 专利标题: Lubricant compositions which exhibit low degree of haze and methods of preparing same
- 专利标题(中): 显示低雾度的润滑剂组合物及其制备方法
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申请号: US673248申请日: 1976-04-02
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公开(公告)号: US4146492A公开(公告)日: 1979-03-27
- 发明人: Carmen M. Cusano , Ronald E. Jones
- 申请人: Carmen M. Cusano , Ronald E. Jones
- 申请人地址: NY New York
- 专利权人: Texaco Inc.
- 当前专利权人: Texaco Inc.
- 当前专利权人地址: NY New York
- 主分类号: C10M157/00
- IPC分类号: C10M157/00 ; C08F220/00 ; C08F220/10 ; C08F220/12 ; C10M145/14 ; C10N20/04 ; C10N30/02 ; C10N40/25 ; C10M1/24
摘要:
A pour depressant polyalkylacrylate comprising an interpolymer of (A) C.sub.1 -C.sub.15 alkylacrylate and (B) C.sub.16 -C.sub.22 alkylacrylate, said interpolymer having an average molecular weight of between about 1000 and 25,000, an A:B weight ratio of between about 90:10 and 50:50, an average alkyl side chain length between about 11 and 16 carbons, and prepared under neat conditions; a lubricating oil composition thereof comprising a major amount of lubricating oil and between about 0.005 and 10 wt.% of the interpolymeric pour depressant and between about 0.5 and 30 wt.% of a viscosity index improving ethylene-propylene copolymer of a molecular weight between about 10,000 and 150,000, a propylene content of 20 to 70 mole% and polydispersity index of less than 5; and a method of improving component compatibility, pour depression, and viscosity index comprising admixing a major amount of hydrocarbon lubricating oil with a minor amount of the interpolymeric polyalkylacrylate and ethylene-propylene copolymer.
公开/授权文献
- US4241212A Chemical agents 公开/授权日:1980-12-23
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