Preparation of aminoplast resins

US4387212A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Hummerich · Worms, DE
• Herbert Hahn · Marietta, US
• Wolfram Weiss · Mutterstadt, DE
• Guenther Immel · Weinheim, DE
• Hans-Joachim Krause · Ludwigshafen, DE
• Karl-Clemens Peters · Bad Dürkheim, DE

Key dates

• Filing date: Sep 20, 1982
• Grant date: Jun 7, 1983
• Expiry date: Sep 20, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G12/425
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of etherified or non-etherified aminoplast resins, wherein an aminotriazine of the general formula (I) ##STR1## where X is hydrogen, alkyl, phenyl, alkylphenyl or --NH.sub.2, is reacted with a .beta.-hydroxyaldehyde of the general formula (II) ##STR2## where R', R" and R'" are identical or different and each is hydrogen or alkyl, or R" and R'", together with the .alpha.-carbon atom, are a cyclopentane or cyclohexane ring, and R" and/or R'" can be hydroxyalkyl and R" can be phenyl, the reaction being carried out in the presence of not less than one alcohol and an acid catalyst for the preparation of etherified aminoplast resins and in the presence or absence of an acid catalyst for the preparation of non-etherified aminoplast resins. The aminoplast resins prepared according to the invention can be used as surface-coatings raw materials.