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:
Mar. 13, 1979
Filed:
Jul. 29, 1977
Applicant:
Inventors:
Joseph A Hoffman, Bridgewater, NJ (US);
Robert J Tucker, Hackettstown, NJ (US);
Assignee:
American Cyanamid Company, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C08K / ; C09B / ;
U.S. Cl.
CPC ...
8180 ; 8 86 ; 8 90 ; 8165 ; 260 / ; 2604 / ;
Abstract
Products of the reaction of about 30 to 90 parts by weight of a compound of formula (I) ##STR1## wherein R.sub.1 and R.sub.2 are each alkyl radicals having up to 8 carbon atoms at least one of which is branched on the alpha carbon, and R.sub.3 and R.sub.4 are each hydrogen or an alkyl radical having up to 18 carbon atoms, and about 70 to 10 parts by weight, respectively, of a secondary or tertiary phosphite are useful for stabilizing polyolefins against degradation by heat and ultraviolet radiation and for rendering polyolefins dyeable by chelatable dyes such as aromatic ortho hydroxy azo dyes.