Basf Se Corporation

Heinrich Bollmann

Karl Haeberle

Andre Kamm

Anand G Huprikar

Frank Schaefer

Guenter Scholz

Markus Schütte

Maria Teresa Hechavarria Fonseca

Elke Marten

Maria Thomas

Karl Häberle

Fatemeh Ahmadnian

Markus Bubolz

Michael Strauβ

Carsten Buschmann

Ulrich Holwitt

Lars Rehling

Andreas Heidemann

Ralf Hansen

Frank SCHÄFER

A process for purifying a polycarbodiimide comprising (a) providing a mixture comprising a polycarbodiimide and a carbodiimidization catalyst; (b) separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture according to (a) to a first distillation, (c) adding an entrainer to the first bottom product obtained from (b) to obtain a mixture; (d) further separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture obtained from (c) to a second distillation.

Process for the purification of a polycarbodiimide

A process for producing a polyurethane shoe sole having an article density of 100 to 350 g/L and being made from an organic polyisocyanate, a polyol, a blowing agent consisting of water, and optionally a crosslinking and/or chain-extending agent, a catalyst, and other auxiliaries and/or additives. First, polyisocyanate, polyol and any crosslinking and/or chain-extending agent are mixed and reacted at a temperature of 110&#xb0; C. to 180&#xb0; C. to give a prepolymer having polyisocyanate groups. Second, the isocyanate-terminated prepolymer obtained and any remaining polyisocyanate are mixed with any remaining polyol, blowing agent comprising water, and any remaining crosslinking and/or chain-extending agent and also any catalyst and other auxiliaries and/or additives are introduced into a mold and allowed to fully react to give a polyurethane shoe sole.

Low-density polyurethane shoe soles or sole parts with high rebound resilience and low compression set

A cylindrical molding based on cellular polyurethane elastomers having a density according to DIN EN ISO 845 of from 300 to 900 kg/m, a tensile strength according to DIN EN ISO 1798 of &#x2267;2.0 N/mm, an elongation at break according to DIN EN ISO 1798 of &#x2267;200% and a tear propagation resistance according to DIN ISO 34-1 B (b), of &#x2267;8 N/mm, wherein the cellular polyurethane elastomer is based on the reaction

Cylindrical mouldings based on cellular polyurethane elastomers

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Alfhausen, Germany

Heinrich Bollmann