Methacrylic resin cast plate having excellent antistatic...

Details Methacrylic resin cast plate having excellent antistatic... Methacrylic resin cast plate having excellent antistatic...

C - Chemistry, Metallurgy

08

L

400/5149, 400/57

C08L 33/12 (2006.01) C08F 265/06 (2006.01) C08F 299/02 (2006.01)

Patent

CA 1318064

- 34 - METHACRYLIC RESIN CAST PLATE HAVING EXCELLENT ANTISTATIC PROPERTY AND PROCESS FOR PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE A methacrylic resin cast plate having an excellent antistatic property comprises (A) 100 weight parts of a polymer comprising 50 to 100 weight S of methyl methacrylate units and 0 to 50 weight % of copolymerizable monomer units and (B) 0.1 to 20 weight parts of a polymer comprising 20 to 100 weight % of units derived from a monomer having a quaternary ammonium base, which is represented by the formula (I): Image (I) wherein R1 is H or CH3, R2 through R4 are H or (C1-9)alkyl which may have a substituent, m is from 1 to 10 and X- is an anion of a quaternizing agent, and 0 to 80 weight % of copolymerizable monomer units. The cast plate is obtained by polymerizing methyl methacrylate, a monomer mixture comprising at least 50 weight % of methyl methacrylate and up to 50 weight % of a copolymerizable monomer or a partial polymerization product thereof in the presence of the polymer (B).

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