| abstract |
A synthetic resin film for agriculture suited as a coveringnmaterial for greenhouses or the like, which shows good anti-cloudingnand anti-fogging properties immediately after being spread and fornlonger period than 2 years. The synthetic resin film for agriculturenis obtained by using (a) an ester of sorbitan with a higher fattynacid mainly containing 24 to 34 carbon atoms (montanic acid wax),nan ester of glycerin with montanic acid wax and/or alkylene oxidenadducts thereto and/or an ester of polyoxyalkylene with montanic acidnwax as an anti-clouding agent, and (b) a fluorine-containingnsurfactant as an anti-fogging agent, kneading them with a film-formingnresin such as vinyl chloride resin, polyethylene, ethylene/vinylnacetate copolymer, and forming it into a film. Incorporation of (c)nan ester of sorbitan with higher fatty acid containing 12 to 22 carbonnatoms, an ester of glycerin with higher fatty acid containing 12 ton22 carbon atoms or an alkylene oxide adduct thereto may further improventhe anti-clouding property. |