Process for the production of aminoplast dispersions

US4246160A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Kuno Wagner · Leverkusen, DE
• Jurgen Ick · Dorpsstraat, US
• Gerhard Balle · Cologne, DE

Key dates

• Filing date: Mar 5, 1976
• Grant date: Jan 20, 1981
• Expiry date: Mar 5, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The instant invention is directed to a process for the production of dispersions of aminoplast condensates in organic polyhydroxyl compounds by the oligo-condensation or polycondensation of substances capable of aminoplast formation, in said organic polyhydroxy compounds, the improvement wherein said dispersions are reacted at from about -5.degree. C. to about 180.degree. C. with an amine compound selected from the group consisting of: PA1 (a) organic aliphatic or cycloaliphatic mono or polyamines containing at least one primary or secondary amine group, and which are gaseous or liquid at room temperature, and PA1 (b) organic alkyl hydrazines containing at least one primary or secondary amine group and which are gaseous or liquid at room temperature.