Adhesive and use of the adhesive for the formation of bonds

US4870129A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Henning · Zorneding, DE
• Rudolf Hombach · Leverkusen, DE
• Walter Meckel · Neuss, DE
• Manfred Dollhausen · Odenthal, DE

Key dates

• Filing date: Aug 19, 1987
• Grant date: Sep 26, 1989
• Expiry date: Aug 19, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2170/80
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An adhesive consisting substantially of an aqueous solution or dispersion of a polyurethane containing chemically incorporated carboxylate and/or sulphonate groups is prepared from a mixture of at least two (cyclo)-aliphatic diisocyanate and selected polyester diols based on (i) adipic acid and (ii) tetramethylenediol, hexamethylenediol or mixtures of these diols. The use of such aqueous solutions for the formation of bonds on any substrates, in particular on leather, plastics, rubber materials and/or polyvinyl chloride containing plasticizer, with the same material or with other materials is disclosed.