Composites from wet formed blends of glass and thermoplastic...

Details Composites from wet formed blends of glass and thermoplastic... Composites from wet formed blends of glass and thermoplastic...

B - Operations, Transporting

29

C

117/123, 117/43

B29C 70/28 (2006.01) C08J 5/08 (2006.01) D21H 13/40 (2006.01) D21H 15/06 (2006.01)

Patent

CA 1329516

TITLE Composites from Wet Formed Blends of Glass and Thermoplastic Fibers ABSTRACT OF THE DISCLOSURE A process for forming a self-supporting preform layer of a homogeneous blend of relatively long glass staple length fibers and wettable fine denier staple length thermoplastic filaments wherein a neutral pH aqueous slurry of the glass fibers and filaments are formed into a mat using conventional papermaking equipment. In the preferred process the wettable thermoplastic filaments are dispersed first in the water then followed by the addition of the glass fibers. The self-supporting preform when converted into a molded composite structure results in a substantially void-free structure of individual glass fibers embedded in a thermoplastic resin matrix.

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