Binder mixtures for stoving lacquers

US5512614A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Ulrich Eicken · Korschenbroich, DE
• Herbert Fischer · Goldkronach, DE
• Wolfgang Gress · Wuppertal, DE
• Ulrich Nagorny · Hilden, DE
• Norbert Stork · Goldkronach, DE

Key dates

• Filing date: Feb 13, 1995
• Grant date: Apr 30, 1996
• Expiry date: Feb 13, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D167/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A binder mixture for stoving lacquers comprising A) at least one alkyd resin; and B) at least one poly-N-acyl alkyleneimine prepared by cationic polymerization of a monomer mixture of a) from 10 to 90% by weight of at least one monomer corresponding to formula (I): ##STR1## in which Z is a direct bond or the group CR.sup.5 R.sup.6, R.sup.1 to R.sup.4 can be the same or different and represent H or a C.sub.1-8 alkyl group, R.sup.5 and R.sup.6 can be the same or different and represent H or a C.sub.1-2 alkyl group, R.sup.7 is a hydroxyl-containing alkyl or alkylene group of a hydroxycarboxylic acid containing 2 to 32 carbon atoms, b) from 90 to 10% by weight of at least one monomer corresponding to formula (II): ##STR2## in which Z and R.sup.1 to R.sup.6 are as defined above and R.sup.8 is the radical of an aromatic monocarboxylic acid, and c) from 0 to 80% by weight of at least one monomer corresponding formula (III): ##STR3## in which Z and R.sup.1 to R.sup.6 are as defined above, and R.sup.9 represents a non-hydroxy-substituted aliphatic radical of a carboxylic acid. The invention also relates to stoving lacquers containing the above binder mixture.