C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/55
C10M 149/10 (2006.01)
Patent
CA 1078366
4-VINYLPYRIDINE POLYMETHACRYLATE CONTAINING LUBE OIL COMPOSITIONS (D#74,680-F) ABSTRACT OF DISCLOSURE A fully formulated crankcase lubricating oil composition containing between about 0.1 and 10 wt. % of a tetrapolymer of 4-vinylpyridine (4-VP), a first alkyl meth- acrylate of the formula: Image a second alkyl methacrylate of the formula: Image and a third alkyl methacrylate of the formula: Image where R is alkyl of from 1 to 6 carbons, R1 is alkyl of from 10 to 15 carbons and R2 is alkyl of from 16 to 20 carbons, of a molecular weight between about 25,000 and 2,500,000 having a component ratio of 4-VP:C1 to C6 alkyl methacrylate:C10-C15 alkyl methacrylate:C16-C20 alkyl methacrylate of between about 2:10:78:10 and 10:30:30:30 and between about 0.1 and 5 wt. % of a calcium containing rust inhibitor, said composition having a sulfated metal ash content of between about 0.05 and 1 wt. %. -I-
287844
Cusano Carmen M.
Gaetani Frank J.
Yamamoto Roy I.
Na
Texaco Development Corporation
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