Aromatic polyisocyanates, their preparation and use as components for adhesives

US4870206A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Josef Sanders · Leverkusen, DE
• Rudolf Hombach · Leverkusen, DE
• Helmut Reiff
• Dieter Dieterich
• Manfred Dollhausen · Odenthal, DE

Key dates

• Filing date: Jun 24, 1988
• Grant date: Sep 26, 1989
• Expiry date: Jun 24, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J175/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

New compounds containing isocyanatophenoxy groups, corresponding to ##STR1## wherein R.sup.1 denotes a residue of a n-valent polyhydroxyl compound having a molecular weight of about 92-6000, R.sup.2 denotes hydrogen or methyl group and n denotes an integer of from 3 to 8 were found to be suitable as hardeners in the preparation of adhesives.