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. 21, 1991
Filed:
Jul. 10, 1990
Applicant:
Inventor:
Errol J Olivier, Baton Rouge, LA (US);
Assignee:
Copolymer Rubber & Chemical Corporation, Baton Route, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568719 ; 568 23 ; 568 25 ; 568 61 ; 568 67 ; 568721 ; 568733 ; 568734 ;
Abstract
This invention is addressed to antioxidants which are polymerizable using the Ziegler catalyst system. The antioxidant of the present invention has the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each aryl groups containing a hindered antioxidant structure imparting antioxidant properties to the compounds. The compounds of the present invention are useful in the polymerization of olefin compounds using Ziegler catalyst systems whereby the antioxidant of the invention becomes chemically bound to the polymer while, at the same time, imparting antioxidant properties thereto.