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. 15, 1984
Filed:
Feb. 18, 1982
Applicant:
Inventors:
Wilhelm Becker, Hamburg, DE;
Albrecht Manz, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
523414 ; 428 35 ; 428418 ; 523404 ; 525533 ;
Abstract
Heat hardenable binders comprising aqueous dispersions of solid epoxy resins of a special structure, wherein some of the glycidyl groups are converted into quaternary ammonium groups by means of primary and/or secondary amines and quaternization, and further containing hardeners and possibly other conventional additives, characterized in that they contain, as hardeners, polybasic water-soluble polycarboxylic acid units or the anhydrides or acid esters thereof having a COOH functionality of at least 3, and the use of the binders for the preparation of hardened products, particularly coatings.