Bayer Aktiengesellschaft

Gerd Reinecke

Klaus Recker

Gerhard Grogler

Karl J Kraft

Ernst Meisert

Albert Awater

Cornelius Muhlhausen

The instant invention is directed to a process for the production of fiber-reinforced molded products, comprising:

Process for producing fiber-reinforced molded products

A substantially solvent-free fast low temperature curing polyurethane coating composition is disclosed as well as a procedure for synthesizing it and a procedure for applying it to a flexible substrate. It has a long shelf-life yet cures in about 1 to 5 minutes at temperatures of between about 80.degree. and 180.degree. C. to give a flexible coating. The composition is a mixture of a polyisocyanate melting at more than about 100.degree. C. and a hydroxyl bearing polyurethane prepolymer based upon branched polyethers, monomeric glycols, and polyamines made with a deficit of polyisocyanate. The composition includes an isocyanate addition catalyst and a sodium aluminum silicate type molecular sieve and may include a polyester polyol as an additive or a reactant in forming the prepolymer.

Coating compositions from polyurethanes containing a molecular sieve of

This invention relates to storable, solvent-free, thermosetting polyurethane-based molding compositions containing a fibrous reinforcing material and to the production of fiber-reinforced moldings using these molding compositions.

Thermosetting molding compositions containing polyurethane and a fibrous

The instant invention relates to a process for coating the back of textile floor coverings, e.g. carpets, with polyurethane foams wherein it is possible to obtain particularly firm fixing of the nap and improved anchorage of the textile filaments. The process broadly comprises:

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Bergisch-Gladbach, Germany

Gerd Reinecke