C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/02 (2006.01) C08K 5/523 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2309189
The present invention relates to a method for processing a thermoplastic resin composition by extruding the composition through a nickel die to provide an extrudate having a low degree of surface roughness, said composition comprising (A) 100 parts by weight of a thermoplastic resin; (B) 0.01 to 1 part by weight of a hydroxy-functional diorganopolysiloxane having a number average molecular weight of at least 10,000; and (C) 0.001 to 1 part by weight of an organophosphorous compound.
Cette invention se rapporte à un procédé de transformation d'une composition de résine thermoplastique par extrusion, en la faisant passer à travers une filière en nickel, afin de former un extrudat ayant un faible degré de rugosité de surface. Cette composition contient: (A) 100 parties en poids d'une résine thermoplastique; (B) 0,01 à 1 partie en poids d'un diorganopolysyloxane à fonction hydroxy ayant un poids moléculaire moyen en nombre égal à 10 000 au moins, et (C) 0,001 à 1 partie en poids d'un composé d'organophosphore.
Hauenstein Dale E.
Lomas Arnold W.
Lupton Kevin E.
Romenesko David J.
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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