Polymer-modified resins

US7138465B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Patrick Gloeckner · Ratingen, DE
• Giselher Franzmann · Witten, DE
• Joern Weiss · Haltern, DE

Key dates

• Filing date: Nov 24, 2003
• Grant date: Nov 21, 2006
• Expiry date: Sep 15, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D151/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Binders for coating materials that exhibit high flexibility and good hardness contain a polymer-modified resin, containing I) at least one polyester having a hydroxyl group or a carboxyl group or both, and II) at least one glycidyl-containing polyacrylate. The polyester I contains an alcohol component containing of from 0.5 to 80 mol % of a dicidol fraction, and the resin is obtained by free-radical polymerization of the starting component(s) for the preparation of the polyacrylate II in the presence of the polyester I in at least one organic solvent.