C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/10 (2006.01) C08F 220/26 (2006.01) C08F 220/32 (2006.01) C08L 33/06 (2006.01) C08L 33/14 (2006.01)
Patent
CA 2372093
The present invention provides a processing aid for thermoplastic resin having a weight average molecular weight of 10,000 to 300,000, which is obtained by polymerizing an alkyl (meth)acrylate, or an alkyl (meth)acrylate and another vinyl monomer copolymerizable therewith, in the presence of a mercaptan having an alkyl ester group with C4-20 alkyl group as a chain transfer agent, and/or an organic peroxide having a tertiary-butyl peroxy group as a polymerization initiator.
L'invention concerne un adjuvant de traitement d'une résine thermoplastique, dont le poids moléculaire moyen en poids est compris entre 10000 et 300 000, et que l'on obtient en utilisant un mercaptan, qui possède un groupe alkylester dans lequel le groupe alkyle possède 4 à 20 atomes de carbone, en tant qu'agent de transfert de chaîne et/ou peroxyde organique comprenant un groupe tert-butylperoxy comme initiateur de polymérisation, afin de polymériser un (méth)acrylate d'alkyle, éventuellement avec un autre (d'autres) monomère(s) vinylique(s) pouvant être copolymérisé(s) avec celui-ci.
Mori Toshiyuki
Nishimura Riichi
Sunagawa Takenobu
Takaki Akira
Kaneka Corporation
Osler Hoskin & Harcourt Llp
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