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:
Jul. 04, 1978
Filed:
Jul. 01, 1976
Applicant:
Inventors:
Wolfgang Zimmermann, Kelkheim, Taunus, DE;
Hermann Schindler, Fischbach, Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526-9 ; 260 / ; 4273 / ; 427391 ;
Abstract
The water resistance of compositions containing polyvinyl alcohol as binder is considerably increased by incorporating therein boric acid and a buffer or a compound which on heating irreversibly reacts to render the mixture alkaline. Sodium trichloro acetate is especially suitable.