Foamable polyester resin composition

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 9/04 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2422117

An expandable polyester resin composition which comprises (A) 100 parts by weight of a polyester resin, (B) 0.5 to 30 parts by weight of a (meth)acrylic ester polymer or polymer mixture obtained by polymerizing 0 to 50 parts by weight of an acrylic ester monomer in the presence of a latex of a polymer having a specific viscosity of 0.7 to 1.9 obtained by polymerizing 50 to 100 parts by weight of a methyl methacrylate monomer, (C) 0.1 to 30 parts by weight of a filler, and (D) a blowing agent.

Composition de résine polyester expansible qui contient (A) 100 parties en poids d'une résine polyester, (B) 0,5 à 30 parties en poids d'un polymère d'ester (méth)acrylique ou d'un mélange polymère obtenu par polymérisation de 0 à 50 parties en poids d'un monomère d'ester acrylique en présence d'un latex d'un polymère ayant une viscosité spécifique de 0,7 à 1,9 obtenu par polymérisation de 50 à 100 parties en poids d'un monomère de méthacrylate de méthyle, (C) 0,1 à 30 parties en poids d'une charge et (D) un agent d'expansion.

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