公开(公告)号：DE3026873A1

公开(公告)日：1982-02-25

申请号：DE3026873

申请日：1980-07-16

Applicant: BASF AG

Inventor： KEMPTER FRITZ ERDMANN DIPL CHE ,  SCHUPP EBERHAD DIPL CHEM DR

IPC: C08C19/36 ,  C08G14/00 ,  C08G14/06 ,  C08G14/14 ,  C08G59/00 ,  C08G59/14 ,  C08G59/40 ,  C08G59/62 ,  C09D5/44 ,  C09D163/00 ,  C08G59/10

Abstract: 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 polyphenols, 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 formaldehyde 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) (I) with or without groups of the general formula II (II) where R1 is a polydienyl radical, R2 and R3 are hydrogen or methyl and R4 and R5 are alkyl, hydroxyalkyl or alkoxyalkyl 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.