Process of producing expanded polypropylene resin beads

Details Process of producing expanded polypropylene resin beads Process of producing expanded polypropylene resin beads

C - Chemistry, Metallurgy

08

J

C08J 9/16 (2006.01) C08J 9/18 (2006.01) C08J 9/224 (2006.01) C08J 9/24 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2465664

A process of producing a foamed molding, wherein expanded, substantially non- crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body. Each of the expanded beads has been surface-modified with an organic peroxide.

Cette invention concerne un procédé de production d'un objet moulé expansé consistant à faire chauffer des grains de résine à base de polypropylène expansé sensiblement non réticulé dans un moule afin que les grains soient collés par fusion pour qu'ils forment un corps monobloc. Chacun de ces grains expansés a été modifié en surface à l'aide d'un peroxyde organique.

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