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:
Jan. 10, 1989
Filed:
Jan. 12, 1987
Applicant:
Inventors:
Thomas Scholl, Krefeld, DE;
Volker Serini, Krefeld, DE;
Dietrich Rathmann, Leverkusen, DE;
Ross Savage, Newtownards, IE;
Klaus Kircher, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
524 89 ; 524 93 ; 524 94 ; 524109 ; 524111 ; 524112 ;
Abstract
Optionally substituted 3-benzalphthalides are effective UV stabilizers for thermoplastic aromatic polyesters, polycarbonates and polyester carbonates.