Basf Aktiengesellschaft

Basf Se Corporation

Hans U Schmidt

Matthias Marx

Peter Horn

Frank Werner

Willibald Schoenleben

Johannes Becker

Guenther Matzke

Dietmar Nissen

Hans-Juergen Reese

Gerd Rehmer

Heinz-Dieter Lutter

Wolfgang Straehle

Werner Hinz

Ralf Fritz

Gerhard Ramlow

Gunther Lukat

Manfred Genz

Guenter Matzke

Timo Prozeske

Uwe Schuett

Stefan Meyer

Johann Leitner

Stefan Ullmann

The invention relates to a polyol mixture which comprises as components These polyol mixtures can be employed to produce polyurethane-based embedding compositions. The invention additionally relates to embedding compositions based on the polyol mixtures (A) described at the outset and at least one modified isocyanate (B) and to the use of the embedding compositions as potting material. The invention further relates to a process for producing the embedding compositions as described at the outset. The invention additionally relates to dialysis filters which comprise the embedding compositions described at the outset. Finally, the invention relates to the combination of components (A) and (B) which are present separately but are to be used together.

Casting compounds based on polyurethane

The invention relates to a composite material having two or more superimposed wood layers. Said layers are joined together by means of a one component polyurethane adhesive containing a prepolymer having free NCO groups and a wood having a volume fraction of libriform fibres in the region of between 50-70% is used.

Composite material comprising two or more superimposed layers of woods

The invention relates to a process for the production of a composite of a plastic and loose stones, comprising the steps

Method for producing a composite material from stones and a plastic material

The present invention relates to a process for the production of elastic, compact or cellular moldings based on elastomers containing N-benzylurea groups in bound form, by reacting

Production of elastic, compact or cellular moldings based on elastomers

The invention relates to a process for the production of elastic, compact or cellular moldings based on elastomers containing N-substituted urea and amide groups in bound form, by reacting

Plastic compact or cellular moldings based on elastomers containing

This invention deals with novel copolymers having K values of from 5 to 80 prepared by the radical polymerization of:

Novel copolymers and their use as auxiliaries and/or additives in

The subject of this invention is elastomers containing polyamide groups and polyurea groups in bonded form, which are prepared by the reaction of

Elastomers containing polyamide groups and polyurea groups in bonded

Disclosed are internal mold release agents for the preparation of molded articles using polyisocyanate addition polymerization, which are comprised of:

Internal mold release agents, their use for preparing molded articles

The invention relates to a process for the preparation of cellular or non-cellular polyurethane-polyurea molded articles. The new process involves the use of urethane and isocyanurate group modified 2,4- and/or 2,6-toluene diisocyanate mixtures as the polyisocyanate component to improve the flowability of the reaction mixture without adversely affecting the mechanical properties of the resulting molded articles.

Process for the preparation of optionally cellular polyurethane-polyurea

The invention relates to a process for the preparation of cellular, microcellular and noncellular polyurethane polyurea molded parts through the reaction of organic polyisocyanates, polyols having at least 2 reactive hydrogen atoms, and a chain extender containing at least 70 percent by weight of a mixture of aromatic diamines comprising from 80 to 50 weight percent of at least one primary aromatic diamine whose amino groups are sterically hindered relative to reaction with polyisocyanates, and 20 to 50 weight percent of at least one unsubstituted or substituted reactive primary aromatic diamine whose amino groups do not exhibit reduced reactivity to polyisocyanates. These reactive mixtures produce polyurethane polyurea polymers with excellent demoldability without the use of external mold release agents.

Process for the preparation of optionally cellular polyurethane polyurea

The invention relates to a one-shot process for the preparation of cellular or noncellular polyurethane polyurea parts having a modulus of flexural elasticity greater than 600 N/mm.sup.2 and densities of from 0.8 to 1.2 g/cm.sup.3 using the reaction injection molding technique, by reacting organic polyisocyanates, a polyol component, aromatic diamines, additional chain extenders and/or cross-linking agents in the presence of catalysts and optionally blowing agents, auxiliaries and/or additives, wherein the polyol component is a mixture containing

The invention relates to a process for the preparation of elastomeric molded parts having urethane or urethane and urea linkages which comprises reacting

Process for the preparation of elastomeric molded parts having urethane

The invention relates to a process for the preparation of cellular, microcellular, and noncellular polyurethane polyurea molded parts with improved demolding characteristics through the reaction injection molding technique wherein unique internal mold release agents are used which are esters and/or amides prepared by reacting a mixture of montanic acid and a carboxylic acid having ten or more carbon atoms with a polyol, alkanolamine, or polyamine.

Internal release agents for polyisocyanate addition polymerization,

Low temperature flexible polyurethane elastomers are prepared by reacting organic polyisocyanates with polyester polyols which have glass transition temperatures of -10.degree. to -80.degree. C. and incorporating therein alkoxylated esters of fatty acids and/or alkoxylated terpene alcohols.

Growing community of inventors

Ludwigshafen, Germany

Hans U Schmidt