Huels Aktiengesellschaft

Chemische Werke Huels Aktiengesellschaft

Herbert Knipp

Friedrich Georg Schmidt

Friedrich-Georg Schmidt

Gerhard Horpel

Alfred Wieland

Herbert Schluter

Wolfgang Schulz

Wilhelm Munninghoff

Karl Tessmann

Latex foam molded articles are prepared using a plastic mold heated by means of microwave energy. The molded article can be readily released from the mold. The mold has good dimensional accuracy and a long serviceable lifetime. The walls of the mold are composed of a molding composition which has the following constituents:

Mold for the production of latex foam articles

A composite article is prepared by intimately bonding a latex foam with a thermoplastic molded part containing polyphenylene ether, the latex consisting of the following components, relative to its total rubber content:

Composite articles by combining a thermoplastic molding and foam

Aromatic hydroxydithiocarboxylic acid vulcanization accelerators for aqueous dispersions of unsaturated polymers are provided which eliminate the formation of health-threatening nitrosamines and do not adversely affect the vulcanization properties.

Process for the vulcanization of latex with aromatic dithiocarboxylic

A stryrene/butadiene graft copolymer latex has a graft substrate component with a comparatively high content of repeating units obtained by polymerization of styrene. The graft copolymer exhibits correspondingly comparatively hard and soft regions with a high and a low Tg, respectively. Vulcanizable compositions based thereon can be used for production of latex foams distinguished by a low compression set in a temperature range from 20.degree. to 70.degree. C., a high tensile strength, and a high elongation at break, and by a high compression resistance.

Styrene/butadiene graft copolymer latex and heat-vulcanizable

A foamable, gelable and heat-vulcanizable composition for the manufacture of latex foam having, e.g., the following properties:

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Haltern, Germany

Herbert Knipp