| 摘要 |
PROBLEM TO BE SOLVED: To provide a biodegradable laminated film for agriculture which is excellent in tearing strength and flexibility. SOLUTION: The biodegradable laminated film for agriculture has: a resin layer (A) made of a resin composition which contains 35 to 90 wt.% of the following aliphatic aromatic polyester resin (a) and 5 to 60 wt.% of at least either of the following aliphatic polyester resin (b) and the following aliphatic polyester resin (c); a resin layer (B) made of a resin composition which contains 50 to 100 wt.% of the resin (c); and a resin layer (C) made of a resin composition which contains 35 to 90 wt.% of the resin (a) and 5 to 60 wt.% of at least either of the resin (b) and the resin (c), in the order, wherein 1 to 49 wt.% of inorganic filler is contained in the laminated film. Herein, the resin (a) is an aliphatic aromatic polyester resin which has adipic acid unit, 1, 4-butane diol unit and terephthalic acid unit as molecular constitution unit, the resin (b) is an aliphatic polyester resin which has succinic acid unit and 1, 4-butane diol unit as molecular constitution unit, and the resin (c) is an aliphatic polyester resin which has succinic acid unit, 1, 4-butane diol unit and an adipic acid unit as molecular constitution unit. COPYRIGHT: (C)2011,JPO&INPIT
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