Glass-reinforced multi-layer sheets from olefin polymer...

Details Glass-reinforced multi-layer sheets from olefin polymer... Glass-reinforced multi-layer sheets from olefin polymer...

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) B32B 27/12 (2006.01)

Patent

CA 2363075

A multi-layer sheet made from olefin polymer materials includes (1) at least one outer layer of (a) a propylene polymer, (b) a graft copolymer comprising a backbone of a propylene polymer material, to which is graft polymerized a vinyl monomer, either (a) or (b) optionally containing a nucleating agent, or (c) an olefin polymer composition, and (2) at least one layer made from alternating layers of a propylene polymer material and glass fiber mat.

Feuille multicouche obtenue à partir de matériaux de polymères d'oléfines et comprenant (1) au moins une couche extérieure de (a) polymère de propylène, (b) un copolymère greffé composé d'un squelette d'un matériau de polymère de propylène auquel a été greffé un monomère de vinyle, soit (a), soit (b) contenant éventuellement un agent de nucléation, ou (c) une composition de polymère d'oléfines, ainsi qu'au moins (2) une couche constituée par des couches alternatives d'un matériau de polymère de propylène et d'un mat de fibres de verre.

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