Polyurethane reactive adhesive compounds containing finely dispersed polymers

US5143987A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Eduard Hansel · Wuppertal, DE
• Heinrich Hess · Cologne, DE
• Gunter Arend · Dormagen, DE
• Gerhard Grogler · Leverkusen, DE
• Richard Kopp · Cologne, DE

Key dates

• Filing date: Sep 5, 1990
• Grant date: Sep 1, 1992
• Expiry date: Sep 5, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention is directed to a polyurethane reactive adhesive compound comprising: PA0 A) one or more polyisocyanates having an inactivated particle surface, PA0 B) at least one isocyanate reactive compound having a molecular weight MG.sub.w greater than 400, and PA0 C) finely dispersed polymer particles, wherein the polymer is solid at temperatures below 70.degree. C. and has a molecular weight MG.sub.w of at least 3000.