Polyolefin layer with improved adhesion to a plastic substrate

Details Polyolefin layer with improved adhesion to a plastic substrate Polyolefin layer with improved adhesion to a plastic substrate

B - Operations, Transporting

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B29C 44/14 (2006.01) A63C 5/12 (2006.01) B29C 41/22 (2006.01) B63B 35/79 (2006.01)

Patent

CA 1179464

POLYOLEFIN LAYER WITH IMPROVED ADHESION TO A PLASTIC SUBSTRATE ABSTRACT A rotational molding process for manufac- turing objects having a foamed plastic substrate adhered to an outer polyolefin coating layer, and having improved adhesion therebetween comprising the combination of steps of: preparing a first outer coating layer of a stabilized polyolefin; forming a second inner layer of an at most slightly stabilized polyolefin contiguous with and on the interior surface of said first outer layer; and thereafter introducing a foamable plastic material onto the interior surface of said second layer and foaming said plastic material thereagainst thereby the foamed plastic is bonded to said second interior surface.

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