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:
Feb. 12, 1985
Filed:
May. 20, 1982
Applicant:
Inventors:
Motonobu Minagawa, Kosigaya City, JP;
Naohiro Kubota, Ageo City, JP;
Toshihiro Shibata, Omiya City, JP;
Assignee:
Adeka Argus Chemical Co., Ltd., Urawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
524102 ; 524326 ; 524336 ; 524342 ; 524395 ; 525203 ; 5253276 ; 525375 ; 526263 ; 546 19 ; 546190 ;
Abstract
Copolymer light stabilizers are provided having at least one 2,2,6,6-tetraalkyl piperidyl group in the molecule and a molecular weight within the range from about 1000 to about 20,000, that are copolymers of a maleic or fumaric acid ester containing a 2,2,6,6-tetraalkyl piperidyl group in the alcohol group of the formula: ##STR1## wherein ##STR2## R.sub.2 is alkyl or R.sub.1 ; X is ##STR3## R.sub.6 is lower alkyl; R.sub.3 is hydrogen or alkyl;