Solid, oxazoline-terminated, urethane-functional polyaddition compounds, a process for preparing them and their use

US6306967A · kind A · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• Emmanouil Spyrou · Schermbeck, DE
• Andreas Wenning · Nottuln, DE

Key dates

• Filing date: Sep 13, 1999
• Grant date: Oct 23, 2001
• Expiry date: Sep 13, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/934
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A solid, oxazoline-terminated, urethane-functional polyaddition compound having a melting point ranging from 40-130.degree. C. and a free NCO content of less than 3% by weight, consisting essentially of a reaction product of a) at least one at least difunctional polyisocyanate and b) at least one hydroxy- or amino-functional oxazoline derivative, the ratio of NCO to OH equivalents ranging from 0.8:1.2 to 1.2:0.8.