Muanyagipari Kutato Intezet

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Tamas Pazonyi

Janos Kleban

Tibor J Czvikovszky

The invention relates to a process for the preparation of a material of composite structure containing a thermoplastic plastic and a fibrous polymer skeleton material, having a high modulus of torsional shear, good shockproofness and being processable by the formation technologies of thermoplastic plastics. According to the invention one proceeds in such a way that the fibrous polymer skeleton material is treated with a resin mixture consisting of an unsaturated polyester resin and a vinyl monomer in an amount of 1-80 percent by weight, related to the skeleton material. The use of the polyester as adhesion-intermediator considerably improves the homogeneity of the material of composite structure, it makes the substance processable without pregranulation on an extruder with a broad slot or a calendrette, and leads to plates the shockproofness of which significantly exceeds that of plates prepared without such intermediator.

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Budapest, Hungary

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