Methyl methacrylate polymer production method

A (meth)acryl resin with little foreign material and little worsening of transparency or yellowing during molding, such as could not be obtained in conventional suspension polymerization, is provided. A methyl methacrylate polymer production method characterized by starting the polymerization of a m...

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Bibliographische Detailangaben
1. Verfasser:	KITAYAMA, FUMINORI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A (meth)acryl resin with little foreign material and little worsening of transparency or yellowing during molding, such as could not be obtained in conventional suspension polymerization, is provided. A methyl methacrylate polymer production method characterized by starting the polymerization of a monomer in the presence of 350 ppm max. of a suspension stabilizer, and then adding the suspension stabilizer when the polymerization conversion rate has reached 20%-90%, when producing a methyl methacrylate polymer by suspension polymerization of 30-100 wt% of methyl methacrylate and 70-0 wt% of a monomer capable of being copolymerized with the methyl methacrylate.