Two-component polyurethane adhesives

US5349040A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rainer Trinks · Dormagen, DE
• Heinrich Konigshofen · Bensberg, DE
• Otto Ganster · Odenthal, DE
• Horst Stepanski · Leverkusen, DE
• Jose Colinas-Martinez · Wermelskirchen, DE

Key dates

• Filing date: Oct 11, 1991
• Grant date: Sep 20, 1994
• Expiry date: Oct 11, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S528/905
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein is a two-component polyurethane adhesive containing an isocyanate component a), an active hydrogen containing component which is stable against demixing b), optionally a catalyst for the reaction of a) with b) and optionally an auxiliary agent and an additive, characterized in that an active hydrogen containing component which is stable against demixing b) contains at least one hydroxyl group-containing low molecular weight chain lengthening agent having at least one C-C double bond or C-C triple bond and having a molecular weight of at least 86 and a functionality of at least 2 and containing no carboxyl groups.