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:
Nov. 26, 2019
Filed:
Jun. 22, 2016
Applicant:
Chemtura Corporation, Middlebury, CT (US);
Inventor:
Robert G. Rowland, Woodbridge, CT (US);
Assignee:
LANXESS Solutions US Inc., Shelton, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 133/12 (2006.01); C07C 211/55 (2006.01); C07C 209/68 (2006.01); C07C 211/58 (2006.01); C09K 15/18 (2006.01); C08K 5/18 (2006.01);
U.S. Cl.
CPC ...
C07C 211/55 (2013.01); C07C 209/68 (2013.01); C07C 211/58 (2013.01); C08K 5/18 (2013.01); C09K 15/18 (2013.01); C10M 133/12 (2013.01); C10M 2215/064 (2013.01); C10M 2215/065 (2013.01); C10N 2230/10 (2013.01);
Abstract
Diaryl amines are selectively alkylated by reaction with branched olefins, which olefins are capable of forming tertiary carbonium ions and can be conveniently prepared from readily available branched alcohols. The diaryl amine products are effective antioxidants and often comprise a high amount of di-alkylated diaryl amines and a low amount of tri- and tetra-alkylated diaryl amines.