To provide agricultural polyolefine multilayer film substantially completely blocking ultraviolet light having a wide wavelength area to the extent to expect ultraviolet light-shielding effect, causing no decrease in ultraviolet light-absorbing performance for a long time, and having a low level of environmental effect when used.
The agricultural polyolefine multilayer film has the following structure: either of the layers of the multilayer film having at least three layers and an entire thickness of less than 0.15 mm, has 3 wt.% or more of an inorganic compound having at least one atom selected from Si, Al, Mg, Ca, and Li as a constituent in all layers of the film; either of the layers of the multilayer film has a benzotriazole ultraviolet absorber having one benzotriazole scaffold in at least one kind of a monomolecule, and a benzotriazole ultraviolet absorber having two benzotriazole scaffolds in at least one kind of a monomolecule; and the ultraviolet light of 300-380 nm is substantially shielded completely.
KINOSHITA KAZUYA
| JP2004262030A | 2004-09-24 | |||
| JPS58125737A | 1983-07-26 | |||
| JPS61203147A | 1986-09-09 |
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura