Henkel Kommanditgesellschaft Auf Aktien

Hans-Josef Hoffmann

Riza N Oezelli

Hans-Guenter Seltmann

Hartmut Lippert

Werner Gruber

Juergen Haerer

Peter Kuhm

Hans-Peter Kohlstadt

Rainer Wefringhaus

Christian Block

Wolf-Dieter Beiersdorf

Norbert Hubner

Brigitte Calaminus

Burkhard Muller

P-dinitrosobenzene

An aqueous solution of suspension of glycidoxypropyl silanol and polydimethyl siloxanes having a number average molecular wieght of more than 100,000 and their use as mold release agents with good release values over a relatively large number of molding cycles in the molding of rubber and plastics.

Glycidoxypropyl silanol and polydimethyl siloxanes as mold release agents

A moisture-hardening flocking adhesive composition for application to elastomers. The adhesive contains an isocyanate terminated polyurethane prepolymer, an aromatic dinitroso compound and an essentially hydroxyl-free epoxy resin having an epoxide value of from about 0.45 to about 0.75. The composition is essentially free of highly volatile organic solvents. The composition is characterized as having improved storage stability and provides excellent adhesion between elastomeric substrates and flocking fibers, even after exposure to water.

Adhesive containing isocyanate-terminated polyurethane prepolymer and

The invention relates to a new primer for pretreating glass in readiness for waterproof bonding to other substrates. The primer contains resins, functional silanes, solvents, and organosilazanes and, if desired, polyfunctional isocyanates and other additives. Compared with conventional primers, the resistance of the bond to hydrolysis is significantly improved.

Glass primer

An adhesive for flocking elastomers, more especially apolar elastomers, such as EPDM. The adhesive contains an isocyanate-terminated polyurethane prepolymer and, as an adhesion promoter, a reaction product of an aromatic diisocyanate with a polyfunctional epoxide, particularly triglycidyl isocyanurate. The strength of adhesion and resistance of the bonds can be further increased by the addition of aromatic nitroso compounds, for example, 1,4-dinitrosobenzene.

Flocking adhesive for flexible substrates

Growing community of inventors

Kempen, Germany

Hans-Josef Hoffmann