Molded articles of fiber-reinforced plastic and preparation...

B - Operations – Transporting – 29 – C

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18/951

B29C 70/00 (2006.01) B29C 51/02 (2006.01) B29C 51/14 (2006.01) B29C 70/34 (2006.01)

Patent

CA 2025834

A process for preparing a molded article of fiber-reinforced plastic having an optional configuration and no tendency to deformation and cracks by using a plate material consisting essentially of a fibrous reinforcement and a thermoplastic resin, comprising the steps of previously setting-up, on the plate material and/or a mold, a sheet prepreg obtained by impregnating a unidirectionally arranged fiber or woven cloth with a thermoplastic resin in areas where the fibrous reinforcement does not follow the flow of the resin well or in areas where special reinforcement is required and successively carrying out integral molding to obtain said article; and a molded article obtained by said process.

Procédé de préparation d'un article moulé de plastique renforcé de fibres, ayant une configuration facultative et démontrant une résistance à la déformation et aux fissures, au moyen d'une plaque constituée essentiellement d'un renforcement fibreux et d'une résine thermoplastique. Ce procédé consiste à : installer initialement sur la plaque et/ou un moule un pré-imprégné en feuille obtenu en imprégnant une fibre ou un tissu de fibres unidirectionnelles d'une résine thermoplastique dans les zones où le renforcement fibreux ne suit pas bien le flux résineux, ou dans les zones où un renforcement spécial est nécessaire; entreprendre un moulage intégral réussi afin d'obtenir l'article voulu. L'article obtenu selon ce procédé est également fourni dans le cadre de cette invention.

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