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:
Jun. 07, 1977
Filed:
Feb. 04, 1975
Applicant:
Inventors:
Seiji Hotta, Ibaraki, JA;
Koichi Koga, Oita, JA;
Tomoyuki Bando, Ibaraki, JA;
Yutaka Kondo, Tokyo, JA;
Assignees:
Sumitomo Chemical Company, Limited, BOTH OF, JA;
Kyodo Chemical Company, Ltd., BOTH OF, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
260 / ; 252401 ; 252402 ; 252403 ; 252404 ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ;
Abstract
A ultraviolet of absorber containing 2-(2',4'-dihydroxyphenyl)-5-chlorobenzotriazole is effectively used to stabilize polyurethane resins against ultraviolet rays.