The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 1977
Filed:
Mar. 10, 1972
Abraham Morduchowitz, Monsey, NY (US);
Terence B Jordan, Fishkill, NY (US);
Isaac D Rubin, Wappingers Falls, NY (US);
Texaco Inc., New York, NY (US);
Abstract
A tetrapolymer of a first alkyl methacrylate of the formula: ##STR1## a second alkyl methacrylate of the formula: ##STR2## a third alkyl methacrylate of the formula: ##STR3## and a N, N-dialkylaminoalkyl methacrylamide of the formula: ##STR4## where R is alkyl of from 1 to 5 carbons, R.sup.1 is alkyl of from 10 to 15 carbons, R.sup.2 is alkyl of from 16 to 20 carbons, R.sup.3 and R.sup.4 are alkyl of from 1 to 2 carbons and A is a divalent alkylene radical of from 2 to 4 carbons, and hydrocarbon lubricating oil compositions containing dispersant and VI improving amounts of said tetrapolymer.