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. 18, 1999
Filed:
Mar. 15, 1993
Applicant:
Inventors:
Helmut Honig, Graz, AT;
Georg Pampouchidis, Graz, AT;
Willibald Paar, Graz, AT;
Herbert Matzer, Graz, AT;
Manfred Valtrovic, Graz, AT;
Assignee:
Vianova Resins, AG, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
523404 ; 523414 ; 523415 ; 523417 ; 523420 ; 525523 ; 525528 ; 525529 ; 525531 ; 528 45 ; 528 73 ; 528103 ; 528107 ; 528110 ; 528111 ; 528117 ;
Abstract
The invention relates to a process for the preparation of pigment paste resins for cathodically depositable coating compositions, wherein diepoxide compounds which contain polyoxyalkylene structures and alkyl and/or alkylene and/or hydroxyalkyl radicals having more than 3 carbon atoms are first reacted to form epoxy resin/amine adducts and final products with oxazolidine structures are obtained by a partial or complete reaction of secondary amino groups with formaldehyde.