Pure-aliphatic compound-soluble powdery bonding agent for paints

US5492944A · kind A · utility

Assignee

• Roehm GmbH Chemische Fabrik · DE

Inventors

• Wilhelm Elser · Riedlingen, DE
• Karl J. Folsch · Mainz, DE
• Peter Rossberg · Seeheim-Jugenheim, DE
• Dieter Tessmer · Darmstadt, DE
• Michael Wicke · Seeheim-Jugenheim, DE

Key dates

• Filing date: Nov 25, 1994
• Grant date: Feb 20, 1996
• Expiry date: Nov 25, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/902
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A powdery bonding agent for paints which is soluble in pure aliphatic compounds, and which is in the form of powdery polymerizate particles, which consists of, at least on the particle surface, of a copolymerizate formed of: (i) 60 to 95 percent by weight of units of at least one hardening monomer selected from the group consisting of (A) isobutylmethacrylate and (B) cycloalkylmethacrylate; and (ii) 5 to 40 percent by weight of units of at least one aliphatic-substance-solubilizing monomer selected from the group consisting of (C) alkylmethacrylates having 6 to 18 carbon atoms in the alkyl residue, where the units of isobutylmethacrylate account for no more than 60 percent by weight and the units of cycloalkylmethacrylates account for no less than 10 percent by weight, based on, in each case, the weight of the copolymerizate.