| 摘要 |
The present invention relates to a method for reducing a silver streak defect of a polymethylmethacrylate resin for a high resolution IPS LCD displaying a low color coordinate when measuring luminance thereof while having excellent light transmittance and yellow index appropriate for a light guide plate. More specifically, the present invention relates to a suspension polymerized resin composition including: a methyl methacrylate homopolymer, wherein a content of DMF is 40ppm or less, or methyl (metha)acrylate copolymer; a phosphoric antioxidant having a certain structure; and higher alcohol. The present invention has excellent optical properties, and fluidity. In addition, the present invention has excellent stability even under the injection condition at high temperatures for having remarkable thermal decomposition, and may be effectively used in a LCD backlight, or etc, since a silver streak defect thereof may be remarkably reduced. |
