Process for producing a methyl methacrylate-based resin article
AssigneeSumitomo Chemical Company, Limited
InventorsTomohiro Maekawa, Kenji Manabe
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Abstract
A process for producing an article of resin made from at least about 50% by weight of methyl methacrylate is provided, which comprises a step of melt-processing the resin with an extruder, wherein an oxygen concentration of a gaseous phase in a resin feed zone of the extruder falls within a range of from about 0.7% by volume to about 10% by volume. The article is excellent in curbing the coloring in melt processing.
Claims7
A process for producing an article of resin made from at least about 50% by weight of methyl methacrylate, which comprises a step of melt-processing the resin with an extruder, wherein an oxygen concentration of a gaseous phase in a resin feed zone of the extruder falls within a range of from about 0.7% by volume to about 10% by volume.
Dependencies are inferred from the claim text.