Henkel Kommanditgesellschaft Auf Aktien

Henkel Ag & Company, Kgaa

Birgit Ness

Werner Haller

Bernhard Gruenewaelder

Wolfgang Klauck

Bernhard Schoettmer

Thomas Empt

Bernhard Grünewälder

A pasty single component polyurethane adhesive is provided. The NCO terminated polyurethane prepolymer is substantially linear, contains from 2.0% to 8.0% based on the weight of the prepolymer, of highly disperse silica and up to 10% by weight, based on the weight of the prepolymer, of additives. The one component adhesive has an Expressed Volume of at least 2,000 g/min measured according to DIN EN 29048 and a Creep Resistance measure according to DIN EN 27390 below 6.0 after 5 minutes.

Single-component polyurethane adhesive

A polyurethane prepolymer obtainable by reacting at least one aromatic polyisocyanate having symmetrical substitution of NCO groups and at least one aromatic polyisocyanate having asymmetric substitution of NCO groups, the fraction of aromatic polyisocyanate having symmetrical substitution of NCO groups being higher than the fraction of polyisocyanate having asymmetric substitution of NCO groups, and at least one polyol having an OH functionality of more than 2.5 and at least one polyol having an OH functionality of less than 2.5.

Neutral-coloured 1K polyurethane adhesive

Growing community of inventors

Langenfeld, Germany

Birgit Ness