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. 04, 1992
Filed:
Jan. 07, 1991
Applicant:
Inventors:
Steven A Jorissen, Mars, PA (US);
Sivaram Krishnan, Pittsburgh, PA (US);
Assignee:
Mobay Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 91 ; 548259 ;
Abstract
A thermoplastic molding composition comprising a polycarbonate resin and a benzotriazole ortho carbonate having an improved level of resistance to deterioration caused by exposure to ultraviolet radiation is disclosed. The ultraviolet stabilizer of the invention conforms to ##STR1## wherein R.sub.1 denotes a hydrogen or a halogen atom or a C.sub.1-4 alkyl or alkoxy group,