C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 129/84 (2006.01) C09K 5/04 (2006.01) C10M 105/48 (2006.01) C10M 107/34 (2006.01) C10M 107/36 (2006.01) C10M 129/18 (2006.01) C10M 137/00 (2006.01) C10M 137/04 (2006.01) C10M 169/04 (2006.01) C10M 171/00 (2006.01)
Patent
CA 2079152
The first lubricating oil composition of the present invention is a composition comprising a polycarbonate represented by the following general formula, at least one compound as an essential component selected from the group consisting of epoxy compounds, phenol compounds, sulfur compounds and amine compounds, and a triester phosphite compound and a triester phosphate compound as an optical component. R1OCOO[(R2O)pCOO]nR3 wherein R1 and R3 are each independently a specific hydrocarbon group or a specific hydrocarbon group containing an ether bond, R2 is a specific alkylene group, and p and n are specific integers. The lubricating oil compositions are excellent in lubricating properties, cleaning properties and electrical insulating properties, and their viscosity at low temperature can readily be lowered and, in addition thereto, generation of carbon dioxide gas can be inhibited.
La première composition d'huile lubrifiante de l'invention renferme un polycarbonate représenté par la formule générale ci-après, au moins un composé comme constituant essentiel, choisi dans le groupe formé de composés époxy, phénoliques, sulfurés et aminés, ainsi qu'un triester phosphite et un triester phosphate comme constituant optique. R1OCOO[(R2O)pCOO]nR3, où R1 et R3 sont chacun, indépendamment l'un de l'autre, un groupe hydrocarboné spécifique renfermant ou non un lien éther-oxyde, R2 est un groupe alkylène spécifique, p et n sont des entiers donnés. Ces compositions d'huiles lubrifiantes ont d'excellentes propriétés comme lubrifiants, nettoyants et isolants électriques; leur viscosité à basse température peut facilement être abaissée et, de plus, la production de dioxyde de carbone peut être éliminée.
Hayashi Takashi
Kaya Hidenori
Mizui Kinya
Shimamoto Kenji
Takahata Kazunori
Mitsui Chemicals Inc.
Smart & Biggar
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