Heat curable, one-component polyurethane reactive compositions

US5574123A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Bock · Leverkusen, DE
• Holger Casselmann · Odenthal, DE
• Werner Drouve · Leverkusen, DE
• Gerhard Grogler · Leverkusen, DE
• Richard Kopp · Cologne, DE
• Heinrich Hess · Cologne, DE

Key dates

• Filing date: Feb 24, 1995
• Grant date: Nov 12, 1996
• Expiry date: Feb 24, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2350/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a heat curable, one-component polyurethane reactive compositions containing PA0 A) surface-modified, finely divided polyisocyanates in which 0.1 to 25 equivalent percent, based on the total number of NCO groups, of the NCO groups are deactivated and PA0 B) a mixture of relatively high molecular weight compounds having isocyanate-reactive groups containing PA1 1) 5 to 40 wt. %, based on the weight of component B), of one or more aliphatic polyether polyamines and PA1 2) 60 to 95 wt. %, based on the weight of component B), of a polyol mixture containing PA2 i) 10 to 60 wt. %, based on the weight of component B2), of at least one polyester polyol and PA2 ii) 40 to 90 wt. %, based on the weight of component B2), of at least one polyether polyol with predominantly primary hydroxyl groups. The present invention also relates to use of the heat curable, one-component polyurethane reactive compositions to prepare coatings, adhesives, anti-drumming products and sealants, especially seam sealants.