B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/641
B29C 44/04 (2006.01) B29C 41/22 (2006.01) B29C 41/46 (2006.01) B29C 33/02 (2006.01) B29C 35/08 (2006.01) B29C 41/18 (2006.01)
Patent
CA 2001380
METHOD OF MAKING A COMPOSITE FOAMED AND SHAPED ARTTCLE ABSTRACT OF THE DISCLOSURE A method of making a composite foamed and shaped article including in the first step in which a thermoplastic resin powder is filled in a slush molding die to form a first resin layer, a second step in which a mixed powder consisting of a heat decomposable foaming agent and the thermoplastic resin powder is filled in the die in which the first resin layer was already formed, to form a second resin layer on the surface of the first resin layer, and a third step in which the heat decomposable foaming agent is made to foam by heat treatment to form a final product of a composite foamed and shaped article wherein the slush molding die is pre-heated by an infrared heating method.
Borden Ladner Gervais Llp
Toray Engineering Co. Ltd.
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