Foamed tools

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 33/38 (2006.01) B29C 70/44 (2006.01)

Patent

CA 2668786

A tool (10) for use in forming moulded articles, the tool (10) comprising a tool body (12) formed of a foamed material, a resinous material (14) on the tool body (12) and elastomeric material (16) between said tool body (12) and resinous material (14) to inhibit the movement of resin from the resinous material into the tool body (12). The invention also provides a method of manufacturing a tool, a method of moulding articles using such a tool, and elastomeric material for use in forming a tool. One particular application of the tools of the present invention is in the formation or manufacture of moulded articles using curable, resinous composite materials.

La présente invention concerne un outil (10) utilisé pour former des articles moulés, lequel outil (10) comprend un corps d'outil (12) composé d'un matériau cellulaire, un matériau résineux (14) appliqué sur le corps d'outil (12) et un matériau élastomère (16) entre le corps d'outil et le matériau résineux (14) servant à inhiber le transfert de résine du matériau résineux dans le corps d'outil (12). Cette invention concerne également un procédé de fabrication d'un outil, un procédé de moulage d'articles utilisant un tel outil, ainsi qu'un matériau élastomère utilisé dans la formation d'un outil. Les outils de cette invention sont particulièrement utilisés pour former ou fabriquer des articles moulés au moyen de matériaux composites résineux durcissables.

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