Polyisocyanate mixtures comprising cycloaliphatic structural elements

US7939598B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Hans-Josef Laas · Odenthal, DE
• Reinhard Halpaap · Odenthal, DE
• Dieter Mager · Leverkusen, DE
• Markus Mechtel · Neunburg vorm Wald, DE
• Michael Ehlers · Krefeld, DE
• Reinhard Hertrampf · Langenfeld, DE

Key dates

• Filing date: Dec 9, 2008
• Grant date: May 10, 2011
• Expiry date: Dec 23, 2028

Classification

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

Abstract

The present invention relates to innovative polyisocyanate mixtures comprising cycloaliphatic structural elements and containing exclusively linear-aliphatically attached free isocyanate groups, to a process for preparing them and to their use as a starting component in the production of polyurethane plastics, more particularly as a crosslinker component in polyurethane coating materials and coatings.