Patent US4528306A successfully refreshed from Google Patents.
EP0246612A2
Expired / Lapsed
EP
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Lubricating oil composition
Assignee: DKS Co Ltd
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Filing: 1987-05-19
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Granted: —
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Expires: 2007-05-19
Abstract
Abstract Properties of paraffinic or naphthenic mineral oil lubricants may be improved by admixing therewith a polyalkylene oxide compound having a C2-C4 alkylene oxide moiety and a C6-C40 alkylene oxide moiety.
Inventors
- 👤 Shigeo Mori
- 👤 Chuzo Isoda
- 👤 Satoshi Teshima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 04:15
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; C10M107/00; C10M107/02; C10M107/18; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08L; C08L71/00; C08L71/02; C10M101/00; C10M101/02; C10M101/025; C10M105/00; C10M105/56; C10M105/58; C10M105/60; C10M105/62; C10M107/20; C10M107/30; C10M107/32; C10M107/34; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/32; C10M145/34; C10M145/36; C10M145/38; C10M169/00; C10M169/04; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/1025; C10M2203/106; C10M2203/1065; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/1055; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/0425; C10N; C10N2020/00; C10N2020/01; C10N2020/04; C10N2030/00; C10N2030/06; C10N2030/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A lubricating oil composition consisting essentially of a paraffinic or naphthenic mineral oil or a mixture of both types of mineral oils, and 5 to 60 % by weight of the composition of a polyalkylene oxide compound of the formula: wherein R is the residue of a compound having 1-8 active hydrogen atoms with removal of the active hydrogen atoms, n is 2-4, m is 6-40, x and y are an integer, and Z is 1-8; said polyalkylene oxide compound having a molecular weight of 500 to 100,000 and a C 6 -C 40 alkylene oxide content of 15 to 60 % by weight of the entire molecule.
Claim 2
Dependent Claim
108 words
A lubricating oil composition consisting essentially of a paraffinic or naphthenic mineral oil or a mixture of both types of mineral oils, and 5 to 60 % by weight of the composition of a polyalkylene oxide compound of the formula: wherein R is the residue of a compound having 1-8 active hydrogen atoms with removal of the active hydrogen atoms, n is 2-4, m is 6-40, x and y are an integer, and Z is 1-8; said polyalkylene oxide compound having a molecular weight of 500 to 100,000 and a C 6 -C 40 alkylene oxide content of 15 to 60 % by weight of the entire molecule.
Claim 3
Dependent Claim
30 words
The lubricating oil composition of Claim I, said compound having 1-8 active hydrogen atoms is an aliphatic monoalcohol, a glycol, a polyol, an amine, a phenol or a carboxylic acid.
Claim 4
Dependent Claim
20 words
The lubricating oil composition of Claim I, wherein the -(C n H 2n )- x moiety is polyoxypropylene or poly(oxypropylene-oxyethylene).
Claim 5
Dependent Claim
31 words
The lubricating oil composition of Claim I, wherein the -(C m H 2m )- x moiety is derived from cyclohexene oxide, nonene oxide or a C 12 -C 40 alpha-olefin oxide.
Claim 6
Dependent Claim
32 words
The lubricating oil composition of Claim I, wherein said C 6 -C 40 alkylene oxide content is 20 to 50 % by weight of the entire molecule of the polyalkylene oxide compound.
References Cited (Backward Citations)
No citation records indexed.
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