Reactive compositions containing blocked polyisocyanates and amine-functional resins

US6060574A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Lutz Schmalstieg · Neunburg vorm Wald, DE
• Volker Schwindt · Leverkusen, DE
• Tillmann Hassel · Cologne, DE
• Gerhard Ruttmann · Burscheid, DE
• Jurgen Schwindt · Leverkusen, DE

Key dates

• Filing date: Apr 7, 1999
• Grant date: May 9, 2000
• Expiry date: Apr 7, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6476
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a reactive composition containing PA1 A) an organic polyisocyanate having a number average molecular weight (excluding the blocking agent) of 168 to 25,000, wherein the isocyanate groups are reversibly blocked with a hydrocarbon resin containing phenolic OH groups, PA1 B) at least one organic polyamine having at least two primary amino groups and PA1 C) optionally a compound containing oxirane groups. The present invention also relates to the use of these reactive systems for the preparation of coatings, adhesives, sealants, embedding compounds or molded articles.