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:
May. 10, 1977
Filed:
Jul. 18, 1975
Applicant:
Inventors:
Hans Joachim Kreuder, Krefeld, DT;
Bernd Peltzer, Krefeld, DT;
Johannes Beckers, Kempen, DT;
Wolfgang Kremer, Krefeld, DT;
Theo Kempermann, Cologne, DT;
Assignee:
Bayer Aktiengesellschaft, , DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 16 ; 260 / ;
Abstract
Alkyd resin lacquers which contain cellulose nitric acid esters can be prevented from 'lifting' and yellowing by the addition of bis-[hydroxyphenyl]-alkanes which are substituted in the nucleus.