| 摘要 |
PURPOSE: To improve the discoloration resistance, bleed-out resistance, light transmission properties, flame retardance, and light resistance of a vinyl chloride resin sheet by compounding a vinyl chloride resin, a specific antimony oxide, titanium oxide, and a plasticizer. CONSTITUTION: This vinyl chloride resin sheet having a light transmission of 40% or higher is obtd. by well mixing 100 pts.wt. vinyl chloride resin having a particle size of 50 mesh pass or lower, 3-39.5 pts.wt. antimony oxide having an average particle size of 0.2μm or lower as the flame retardant, 0.5-37 pts.wt. titanium oxide having an average particle size of 0.2μm or lower as the weather- resistant additive, and if necessary, 5 pts.wt or lower radical scavenger, kneading the resultant mixture while slowly adding 30-70 pts.wt. plasticizer to it, and forming it into a sheet.
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