Preparation of curable polyadducts, containing basic nitrogen gr

Details Preparation of curable polyadducts, containing basic nitrogen gr Preparation of curable polyadducts, containing basic nitrogen gr

1981-05-22

1982-07-20

Nielsen, Earl A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528104, 528107, 525380, 525523, 204181C, C08G 5914, C08G 5928

Patent

active

043407145

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.

REFERENCES:
patent: 3312664 (1967-04-01), Bremmer
patent: 3365471 (1968-01-01), Becke et al.
patent: 3391097 (1968-07-01), Williamson
patent: 3450711 (1969-06-01), Megna et al.
patent: 3503979 (1970-03-01), Habermeier et al.
patent: 3839447 (1974-10-01), Swiger et al.
"Organikum", VEB Deutscher Verlag der Wissenschaften (1967), pp. 492-494.

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