The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 1980

Filed:

Jun. 01, 1978
Applicant:
Inventors:

Yoshiaki Kodera, Kusatsu, JP;

Kiyoyuki Watanabe, Jyoyo, JP;

Tetsuo Kadoya, Osaka, JP;

Tadashi Taguchi, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428315 ; 428501 ; 428518 ; 428520 ; 428522 ; 428524 ; 521136 ; 521143 ; 525154 ;
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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