Title:
AGRICULTURAL FILM
Document Type and Number:
Japanese Patent JP3933297
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prepare an agricultural film capable of manifesting excellent anti- fogging persistence, transparency, tear strength and tensile strength, useful for covering materials for forcing cultivation in agriculture by including a specific filler and an anti-fogging agent in specific ratios into a specific ethylene based copolymer.
SOLUTION: This agricultural film includes (A) 100 pts.wt. of an ethylene-α- olefin copolymer [e.g.; obtained by polymerizaing ethylene and an α-3 to 18C olefin copolymer using a metallocene catalyst, having a melt flow rate of 0.1 to 50 g/10 minutes, a density (D1) of 0.88 to 0.928 g/cm3, an extrapolated end of melting temperature of the melting peak obtained by differential scanning calorimetry (Tem) of 50 to 130, and satisfies the relation of Tem≤286D1-137], (B) 0.05 to 1 pt.wt. of a basic magnesium carbonate of the formula: nMgCO3.Mg(OH)2.mH2O ((m) is 0 to 3; (n)is 3 to 5), and 0.1 to 5 pts. of an anti-fogging agent (e.g.; a nonionic, an anionic or a cationic surfactant).
Inventors:
Kiyomaru Sudo
Gen Ikeno
Gen Ikeno
Application Number:
JP11018798A
Publication Date:
June 20, 2007
Filing Date:
April 06, 1998
Export Citation:
Assignee:
Japan Polypropylene Corporation
International Classes:
A01G13/02; C08J5/18; A01G9/14; B32B27/18; B32B27/32; C08K3/10; C08K3/26; C08L23/08; (IPC1-7): C08J5/18; A01G9/14; A01G13/02; B32B27/18; B32B27/32; C08K3/10; C08K3/26; C08L23/08
Domestic Patent References:
| JP6256589A | ||||
| JP9249774A | ||||
| JP4238029A | ||||
| JP10251457A |
Attorney, Agent or Firm:
Kenji Kawabi
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