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:
Sep. 07, 1982
Filed:
Sep. 22, 1980
Applicant:
Inventors:
Hans-Josef Buysch, Krefeld, DE;
Bert Brassat, Krefeld, DE;
Erich Eimers, Krefeld, DE;
Karl H Hermann, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524117 ; 524116 ; 524119 ; 524291 ;
Abstract
Phosphorous acid esters obtained by reacting bisphenols with phosphorous trihalogenide or triphosphite and optionally or mono- or polyhydroxy compound are especially useful for stabilizing polyamides.