Agricultural covering multilayer film or sheet structure and method for thermal insulation
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United States of America Patent
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Feb 17, 1981
Issued Date -
N/A
app pub date -
Aug 23, 1979
filing date -
Aug 23, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A covering multilayer film or sheet structure for agricultural application, which consists essentially of: (1) a film or sheet of a resin composition comprising (A) 100 parts by weight of a thermoplastic resin selected from the group consisting of olefinic resins and vinyl chloride resins and (B) about 1 to about 40 parts by weight of an acetal resin, and (2) a layer of the thermoplastic resin (A) laminated to at least one surface of the film or sheet (1); and a method for maintaining an agricultural locus at temperatures suitable for the growth of plants, using aforesaid covering multilayer film or sheet.
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