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:
Oct. 04, 1977
Filed:
Sep. 30, 1969
Applicant:
Inventors:
Wilbur H McKellin, St. Louis, MO (US);
Orville L Mageli, Buffalo, NY (US);
Antonio Joseph D'Angelo, Buffalo, NY (US);
Assignee:
Pennwalt Corporation, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 48 ; 526 29 ; 526 47 ; 526 57 ; 260 4233 ;
Abstract
Vulcanizable compositions containing a polyperoxyketal having at least one carboxy group as an acid, hydrocarbon ester, a metal ion salt or as part of an anhydride. Illustrations are rubber or ethylene-propylene rubber containing n-butyl .gamma., .gamma.-bis(t-butylperoxy) valerate, barium .gamma., .gamma.-bis(t-butylperoxy)valerate or .gamma., .gamma.-bis(t-butylperoxy) valeric acid anhydride. Also embodied are the cross-linked compositions and methods of crosslinking.