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:
Dec. 01, 1987
Filed:
Aug. 29, 1986
Applicant:
Inventors:
Richard V Nelson, Wilmington, DE (US);
John F Stephen, West Chester, PA (US);
Assignee:
ICI Americas Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 98 ; 524 99 ; 524100 ; 524102 ; 524103 ; 546 19 ; 546188 ; 546189 ; 546190 ; 546207 ;
Abstract
Malonate-based spiroacetals of polyalkylpiperidin-4-ones are useful light stabilizers for synthetic polymer resins such as polyolefins, and in particular, polypropylene.