Rigid thermoplastic methacrylic resin composition and items...

Details Rigid thermoplastic methacrylic resin composition and items... Rigid thermoplastic methacrylic resin composition and items...

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) C08F 265/06 (2006.01) C08L 33/12 (2006.01) C08L 51/00 (2006.01)

Patent

CA 2194092

tems made for example by casting, injection or extrusion with an improved resistance to cracking agents are formed using a thermoplastic methacrylic composition including at least one thermoplastic (co)polymer (A) based mainly on methyl methacrylate and at least one network (co)polymer (B) based mainly on methyl methacrylate obtained by emulsion polymerization in the presence of at least one crosslinking agent and at least one grafting agent.

Des articles façonnés par exemple par coulée, injection ou extrusion et présentant une résistance améliorée aux agents fissurants, sont formés à partir d'une composition méthacrylique thermoplastique comprenant au moins un (co)polymère thermoplastique (A) à base majoritaire de méthacrylate de méthyle et au moins un (co)polymère réticulé (B) à base majoritaire de méthacrylate de méthyle obtenu par polymérisation en émulsion en présence d'au moins un agent de réticulation et d'au moins un agent de greffage.

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