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:
Jul. 11, 1978
Filed:
Jul. 02, 1976
Applicant:
Inventors:
Kyoichi Iwamoto, Shinnan-yoshi, JP;
Hiroshi Kakei, Shinnan-yoshi, JP;
Assignee:
Tokuyama Sekisui Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
2608 / ; 260 / ; 260 / ; 2608 / ; 260835 ; 260836 ;
Abstract
Compositions for improving the weatherability of synthetic resins are prepared by modifying an epoxy resin with at least one acid selected from the group consisting of cinnamic acid, .alpha.-methylcinnamic acid and o-coumaric acid. The addition of such agents to synthetic resins provides a resulting resin which has improved weatherability, transparency and thermal stability.