Retarding depolymerization of poly(methyl methacrylate)...

Details Retarding depolymerization of poly(methyl methacrylate)... Retarding depolymerization of poly(methyl methacrylate)...

C - Chemistry, Metallurgy

08

L

C08L 51/06 (2006.01) C08F 255/02 (2006.01) C08K 5/17 (2006.01) C08K 5/32 (2006.01)

Patent

CA 2225141

Depolymerization during melt processing of poly(methyl methacrylate) that is grafted onto a backbone of propylene polymer material is retarded by adding 0.025 parts to 5.0 parts of a hydroxylamine compound per hundred parts of the graft copolymer. The methyl methacrylate can be copolymerized with another monomer such as methyl acrylate.

Pendant le traitement par fusion du poly(méthacrylate de méthyle) greffé sur un squelette de polymère de propylène, la dépolymérisation est retardée par addition de 0,025 à 5,0 parties d'une hydroxylamine par cent parties de copolymère greffé. Le méthacrylate de méthyle peut être greffé avec un autre monomère, notamment l'acrylate de méthyle.

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