Polyurethane-polyurea dispersions as coating compositions

US6642303B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Detlef-Ingo Schutze · Recklinghausen, DE
• Gerald Kurek · Leverkusen, DE
• Thorsten Rische · Unna, DE
• Jürgen Urban · Recklinghausen, DE
• Tillmann Hassel · Cologne, DE

Key dates

• Filing date: May 6, 2002
• Grant date: Nov 4, 2003
• Expiry date: May 6, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention concerns ionic and/or non-ionic hydrophilic, aqueous polyurethane-polyurea dispersions (PU dispersions) based on polycarbonate polyols and polytetramethylene glycol polyols, a process for their production and their use as coating compositions, in particular for the production of very stable thick foam deposits in a single coat.