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:
Jun. 08, 1982
Filed:
Sep. 05, 1980
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Dithiophosphate lubricant additives of the formula I ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, represents C.sub.3 -C.sub.12 alkyl which can be interrupted by 1 to 2 oxygen atoms, C.sub.6 -C.sub.10 aryl or (C.sub.1 -C.sub.12 alkyl)-aryl, or R.sub.1 and R.sub.2 together represent C.sub.2 -C.sub.12 alkylene which can be interrupted by 1 or 2 oxygen atoms, and represents --OH, --NR.sub.3 R.sub.4, --OH.NR.sub.3 R.sub.4 R.sub.5, --NHCH.sub.2 COOH, --NHCH.sub.2 COOR.sub.1, --NH(CH.sub.2 COOH).sub.2, --N(CH.sub.2 COOR.sub.1).sub.2, --N(CH.sub.2 COOH).sub.2.NR.sub.3 R.sub.4 R.sub.5, --N(CH.sub.2 COOH.NR.sub.3 R.sub.4 R.sub.5).sub.2, --NHCH.sub.2 OH or --N(CH.sub.2 CH.sub.2 OH).sub.2, wherein R.sub.3, R.sub.4 and R.sub.5, each independently of the other, represents hydrogen or C.sub.1 -C.sub.18 alkyl, or R.sub.3 and R.sub.4 together represent C.sub.3 -C.sub.12 alkylene which can be interrupted by an oxygen, sulphur or nitrogen atom.