Composite material compositions using wastepaper and method...

Details Composite material compositions using wastepaper and method... Composite material compositions using wastepaper and method...

C - Chemistry, Metallurgy

08

J

400/1114, 400/13

C08J 11/00 (2006.01) C08L 1/02 (2006.01) C08L 97/02 (2006.01) C08L 101/00 (2006.01)

Patent

CA 1138588

ABSTRACT OF THE DISCLOSURE This invention provides a composite material compositions comprising wastepaper, a thermoplastic resin and/or other additive(s), said compositions having higher heat resistance, flame retardance and mechanical strength and smaller linear shrinkage in molding than the conventional compositions of synthetic resins alone or blended with woodmeal or an inorganic filler. There is also provided a method of producing said compositions comprising a wastepaper cutting step, a step of mixing cut wastepaper with a thermoplastic resin and/or other additive(s) while drying said wastepaper, a blend melting step, a blend kneading step and a blend granulating step. In an embodiment of this invention, scraps of moldings from the composite material compositions using wastepaper may be mixed with wastepaper, a thermoplastic resin and/or other additives(s) and similarly treated and molded into a new composition.

330990

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