| 摘要 |
PURPOSE:To obtain an agricultural vinyl chloride film excellent in both antifogging and anticlouding properties by mixing a vinyl chloride resin with a specified fluorine compound and a sorbitan fatty acid ester in a specified ratio and forming the obtained mixture into a film. CONSTITUTION:A fluorine compound (A) of the formula (wherein R is 1-22C alkyl, alkenyl, nonylphenyl, octylphenyl or dinonylphenyl; R1 and R2 are each H or methyl; m and n are each 1 or greater; m+n=2-30; and Rf is 4-12C perfluoroalkyl) and a sorbitan fatty acid ester (B) prepared by reacting 1mol of sorbitol with 1-1.5mol of a 12-18C higher fatty acid (e.g. stearic acid) are prepared. A vinyl chloride resin is mixed with 1-5wt.% mixture of component A with component B in an A to B weight ratio of 20:80-5:95, and the obtained mixture is formed into an agricultural vinyl chloride film. |
