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. 30, 1990
Filed:
Jan. 11, 1988
Applicant:
Inventors:
Hans-Josef Buysch, Krefeld, DE;
Zsolt Szentivanyi, Leverkusen, DE;
Bert Brassat, Krefeld, DE;
Christiane Oppenheimer-Stix, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524 83 ; 544 35 ; 544 38 ;
Abstract
Products prepared by reacting isopropenyl phenols or bisphenols of the bisphenol-A type with diphenyl amine, phenothiazin or derivatives thereof in the presence of acidic catalysts are used as stabilizers for polyamides and rubbery materials.
Buysch, Hans-Josef. (1990). New stabilizers and their use for the production of stabilized (U.S. Patent No. 4897436). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4897436
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile