Integral composite profile of cellular and non- cellular resins

Details Integral composite profile of cellular and non- cellular resins Integral composite profile of cellular and non- cellular resins

B - Operations, Transporting

29

C

18/648

B29C 67/20 (2006.01) B29C 44/22 (2006.01) B29C 47/00 (2006.01) B29C 47/04 (2006.01)

Patent

CA 1241165

Abstract of the Disclosure The dual extrusion and fusion of cellular and non-cellular resin extrudates produces an integral composite profile having a tongue and groove interlock. The resins are extruded through a common die having overlapping orifices. A bulbous tongue of one extrudate is encapsu- lated by finger-like projections of a second extrudate and the mated profiles are pulled through a vacuumized sizing box adapted to seal- ingly receive the cellular portion and to freely receive the non- cellular portion.

490406

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