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:
Apr. 16, 2002
Filed:
Jul. 17, 2000
Applicant:
Inventors:
Sonja Wernik, Iserlohn, DE;
H. Juergen Dern, Menden, DE;
Athina Kerkaidou, Iserlohn, DE;
Stephan Schroeter, Essen, DE;
Assignee:
Bakelite AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/404 ; C08G 8/10 ;
U.S. Cl.
CPC ...
C08G 1/404 ; C08G 8/10 ;
Abstract
Resols modified with organic phosphonic acids and/or phosphinic acids or their alkali and/or alkaline-earth metal salts obtained by reacting phenolic compounds and aldehyde in an alkaline medium in a molar ratio of the phenolic compounds to the aldehyde in a range from 1:0.3 to 1:6, with the reaction mixture comprising 0.1 to 10 percent by weight of at least one organic phosphonic acids and/or phosphinic acids or their alkali and/or alkaline-earth metal salts.