Water dilutable binders for soft feel coating materials

US6414079B1 · kind B1 · utility

Assignee

• Solutia Austria GmbH · AT

Inventors

• Markus Schafheutle · Hochheim, DE
• Anton Arzt · Tillmitsch Links der Laßnitz, AT
• Julius Burkl · Graz, AT
• Martina Glettler · Graz, AT
• Ursula Meisner · Graz, AT
• Gerlinde Petritsch · Graz, AT
• Joerg Wango · Wundschuh, AT

Key dates

• Filing date: Sep 22, 2000
• Grant date: Jul 2, 2002
• Expiry date: Sep 22, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D175/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Water dilutable binder for soft feel coating materials, comprising an aqueous dispersion of a hydroxyl-containing polyester-urethane A, preparable by reacting a polyester A1 with hydroxyl groups as functional groups, formed from difunctional or polyfunctional carboxylic acids A11 and difunctional or polyfunctional alcohols A12, with a polyfunctional isocyanate A2, with a compound A3 having at least one isocyanate-reactive group and at least one acid group, an aqueous solution or dispersion of a triazine resin B, wherein the glass transition temperature of the polyester-urethane A is between −70 and −20° C. and wherein the hydroxyl number of the polyester-urethane A is from 10 to 120 mg/g, a process for its preparation, and its use in soft feel coating materials for plastics, metals, glass, wood, textiles, and leather.