C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/44, 204/97.1
C08G 8/28 (2006.01) C08C 19/36 (2006.01) C08G 14/06 (2006.01) C08G 14/14 (2006.01) C08G 59/08 (2006.01) C08G 59/40 (2006.01) C08G 59/62 (2006.01) C09D 5/44 (2006.01) C09D 163/00 (2006.01) C25D 13/06 (2006.01)
Patent
CA 1173994
Abstract of the Disclosure: A polyadduct/polycondensate, which is water-dilutable when protonated with an acid, and which contains basic nitrogen groups, is obtained by polyaddition reaction of (A) Mannich bases obtained from monophenols and/or poly- phenols, one or more secondary amines which contain one or more hydroxyalkyl groups,or a mixture of such a secondary amine with another secondary amine, and form- aldehyde or a formaldehyde donor, with (B) an epoxy resin, the polyadduct/polycondensate of (A) and (B) containing groups, bonded to aromatic rings, of the formula (I) Image (I) with or without groups of the general formula II Image (II) where R1 is a polydienyl radical, R2 and R3 are hydrogen or methyl and R4 and R5 are alkyl, hydroxyalkyl or alkoxy- alkyl or are linked to one another to form a 5-membered or 6-membered ring. The polyadduct/polycondensate can be used, for example, as a surface-coating binder for the cathodic electrocoating of metal articles.
381763
Kempter Fritz E.
Schupp Eberhard
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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