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. 20, 1982
Filed:
May. 22, 1981
Eberhard Schupp, Schwetzingen, DE;
Fritz E Kempter, Mannheim, DE;
Erich Gulbins, Heidelberg-Neuenheim, DE;
BASF Aktiengesellschaft, , DE;
Abstract
A process for the preparation of curable polyadducts, possessing basic nitrogen groups, wherein (A) monophenols and/or polyphenols, which contain groups of the general formula (I): ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen or methyl are reacted with (B) amines having one or more primary and/or secondary amino groups, and the adduct formed is reacted with (C) epoxide compounds having from 1 to 4 epoxide groups per molecule and having a molecular weight of at most 2,500, the ratio of the phenolic hydroxyl groups of (A) to epoxide groups of (C) being from 1:0.5 to 1:2 and the amine (B) being employed in such amount that the resulting polyadduct of (A), (B) and (C) contains from 0.1 to 5% by weight of basic nitrogen, and the use of the products, after protonation with an acid, as binders for the production of coatings, especially for the cathodic electrocoating of metal articles.