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AGRICULTURAL MULTILAYERD FILM
专利权人:
MITSUBISHI CHEM MKV CO
发明人:
ONISHI SHUNICHI,YOKOYAMA KAZUHIKO
申请号:
JP19980146763
公开号:
JPH11334005(A)
申请日:
1998.05.28
申请国别(地区):
日本
年份:
1999
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide an agricultural cover material especially excellent in initial transparency and dustproof properties and excellent in various properties such as weatherability, heat insulating properties or lasting anti-fogging properties. SOLUTION: An anti-fogging coating film based on a thermoplastic resin and an inorg. colloid sol is provided on the surface of an agricultural multilayered film consisting of an film outer layer comprising an ethylene/α- olefin copolymer resin obtained by copolymerization using a metallocene catalyst, a film intermediate layer comprising a compsn. consisting of an ethylene/ vinyl acetate copolymer resin with a vinyl acetate content of 10-25 wt.% and 1-20 wt.pts. of inorg. particles containing at least one atom selected from among Mg, Ca, Al, Si and Li and an inner layer comprising an ethylene/vinyl acetate copolymer with a vinyl acetate content of 1-10 wt.% so as to be bonded to the surface of the inner layer. The ethylene/α-olefin copolymer resin has a melt flow rate of 0.1-10 g/10 min, a density of 0.88-0.930 g/cm<3> and a mol.wt. distribution (wt. average mol.wt./number average mol.wt.) is 1.5-3.5.
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中国工程科技知识中心
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