Method and device for making a composite material

B - Operations – Transporting – 32 – B

Patent

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B32B 17/04 (2006.01) B29B 15/10 (2006.01) B29C 70/50 (2006.01) B32B 5/28 (2006.01) D04H 1/00 (2006.01) D04H 3/14 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2215491

A method for making a composite material by continuously depositing glass yarns on a moving substrate, at least 80 wt % of the yarns being blended yarns consisting of intimately mixed glass filaments and thermoplastic organic material filaments, and the amount of deposited glass being equal to over 40 wt % of the total amount of material deposited in the form of glass yarns and organic material; transferring the combined glass yarns and organic material to a number of areas where they are heated, compressed and cooled, and specifically heated and/or cooled while simultaneously being compressed; and cutting the resulting assembly into plates or winding it onto a revolving drum.

L'invention concerne la fabrication d'un produit composite qui consiste à déposer en continu sur un substrat en mouvement des fils de verre dont au moins 80 % en poids d'entre eux sont des fils co-mêlés constitués de filaments de verre et de filaments de matière organique thermoplastique intimement mélangés, la quantité de verre déposée représentant plus de 40 % en poids de la quantité totale de matière déposée sous la forme de fils de verre et de matière organique; à transférer cet ensemble fils de verre-matière organique dans plusieurs zones où ledit ensemble est chauffé, comprimé et refroidi, le chauffage et/ou le refroidissement dudit ensemble étant accompagné simultanément de sa compression; à découper ledit ensemble sous la forme de plaques ou à l'enrouler sur un tambour en rotation.

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