Basf Se Corporation

Bin-Eric Chen

Frank Prissok

Andre Kamm

Yoke Khim Raymond Toh

Dirk Kempfert

Frank Schaefer

Guenter Scholz

Martin Vallo

Yasuyuki Suzuki

Christoph Bahr

Harald Schulz

Carsten Guenther

Günter Scholz

Tienkuan Lim

Teruya Ohkuwa

Tien Kuan Lim

Dehui Yin

Akira Nomura

Frank SCHÄFER

Lim Tien Kuan

Suzuki Yasuyuki

Carsten Günther

A process for producing a shoe sole, having a hybrid material of a polyurethane foam as a matrix material and an inlay component of expanded particles of a thermoplastic polyurethane is provided. The process includes preparing an inlay form by joining the expanded particles of a thermoplastic polyurethane in an amount and size of the desired inlay; preparing the shoe sole by placing the prepared inlay form in a shoe sole mold such that an edge of the inlay component is 0.2 cm or more from an edge of the shoe sole mold; embedding the inlay form within a reaction mixture in the shoe sole mold; and reacting the reaction mixture to form the matrix in the shoe sole mold.

Damping element in shoe soles

The present invention relates to a process for producing a shoe sole comprising a hybrid material made of a polyurethane foam as matrix material and of foamed particles of thermoplastic polyurethane by preparing an inlay of joined expanded particles (c&#x2033;) of thermoplastic polyurethane and placing the joined expanded particles of thermoplastic polyurethane in a mould and embedding the inlay with a reaction mixture obtainable by mixing (a) polyisocyanates with (b) compounds having hydrogen atoms reactive toward isocyanates, and if appropriate, with (d) chain extenders and/or crosslinking agents, and with (e) catalysts, and with (f) blowing agents, and with (g) further additives and reacting the reaction mixture to give the shoe sole. The present invention further relates to shoe soles, obtainable by such a process.

The invention refers to a thermoplastic polyurethane produced from at least an organic diisocyanate and a compound which is reactive toward isocyanates, wherein the polyurethane comprises the ester of a tricarboxylic acid with at least one alcohol and wherein all acid groups of the tricarboxylic acid are esterified with an alcohol. The invention further refers to a process for producing the respective polyurethane, products comprising this thermoplastic polyurethane and the use of the ester of a tricarboxylic acid as plasticizer in thermoplastic polyurethanes.

Soft thermoplastic polyurethane based on the ester of a tricarboxylic acid

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Shanghai, China

Bin-Eric Chen