Process for producing a multi-layered foam article and...

Details Process for producing a multi-layered foam article and... Process for producing a multi-layered foam article and...

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B29C 44/04 (2006.01) B29C 44/06 (2006.01) B29C 44/14 (2006.01) B29C 44/38 (2006.01) B60N 2/00 (2006.01) B60N 2/58 (2006.01)

Patent

CA 2447542

A process for producing a multi-layered article having a soft, leather-like feel comprising first introducing into a suitable mold a first liquid formulation designed to produce the top elastomeric layer on the finished article. A release agent is then applied on the elastomeric layer in the area where it is desired not to have adherence of the elastomer to the foam. Before the elastomeric layer is completely cured, a second liquid foam producing formulation, designed to produce a soft foam, is poured into the open mold. The elastomeric layer of the resulting article is integrally attached to the foam in the areas not containing the release agent.

Selon l'invention, un procédé de procédé de fabrication d'un article multicouches donnant la sensation de cuir souple consiste à introduire dans un moule approprié une première préparation liquide destinée à produire la couche élastomère sur l'article fini. Un agent de libération est ensuite appliqué à la couche élastomère dans la zone où l'on ne désire aucune adhérence de l'élastomère à la mousse. Avant le séchage complet de la couche élastomère, une deuxième préparation de mousse liquide destinée à produire une mousse molle est versée dans le moule ouvert. La couche élastomère de l'article ainsi obtenu est attachée intégralement à la mousse dans les zones qui ne contiennent pas d'agent de libération.

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