JPS5790006A - Agricultural film - Google Patents

Agricultural film

Info

Publication number
JPS5790006A
JPS5790006A JP55165822A JP16582280A JPS5790006A JP S5790006 A JPS5790006 A JP S5790006A JP 55165822 A JP55165822 A JP 55165822A JP 16582280 A JP16582280 A JP 16582280A JP S5790006 A JPS5790006 A JP S5790006A
Authority
JP
Japan
Prior art keywords
olefin
ethylene
vapor phase
value
agricultural film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55165822A
Other languages
Japanese (ja)
Other versions
JPH0313245B2 (en
Inventor
Tetsuo Watanabe
Toshiharu Futasugi
Kazuo Matsuura
Mitsuharu Miyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIHON SEKIYU KAGAKU KK
Eneos Corp
Original Assignee
NIHON SEKIYU KAGAKU KK
Nippon Petrochemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NIHON SEKIYU KAGAKU KK, Nippon Petrochemicals Co Ltd filed Critical NIHON SEKIYU KAGAKU KK
Priority to JP55165822A priority Critical patent/JPS5790006A/en
Publication of JPS5790006A publication Critical patent/JPS5790006A/en
Publication of JPH0313245B2 publication Critical patent/JPH0313245B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Abstract

PURPOSE: An inexpensive agricultural film having improved mechanical strength and excellent transparency, prepared by copolymerizing ethylene with an α-olefin in a vapor phase in the presence of a specified catalyst containing Mg and Ti or V.
CONSTITUTION: Ethylene and a 3W12 C α-olefin are copolymerized in a vapor phase in the absence of a solvent in the presence of a catalyst consisting of an organoaluminum compound and a solid substance containing magnesium and titanium and/or vanadium. A film consisting of the thus-produced ethylene/ α-olefin copolymer having a density of 0.890W0.945, a melt index of 0.1W10.0 and an n-value of 1.3W2.0, wherein the n-value is defined by the formula, wherein τ is a shear rate (1/sec, 170°C), τ is a shear stress (dyne/cm2, 170°C) and subscripts 20 and 150 represent loads of 20 and 150kg/cm2, respectively.
COPYRIGHT: (C)1982,JPO&Japio
JP55165822A 1980-11-27 1980-11-27 Agricultural film Granted JPS5790006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55165822A JPS5790006A (en) 1980-11-27 1980-11-27 Agricultural film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165822A JPS5790006A (en) 1980-11-27 1980-11-27 Agricultural film

Publications (2)

Publication Number Publication Date
JPS5790006A true JPS5790006A (en) 1982-06-04
JPH0313245B2 JPH0313245B2 (en) 1991-02-22

Family

ID=15819650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165822A Granted JPS5790006A (en) 1980-11-27 1980-11-27 Agricultural film

Country Status (1)

Country Link
JP (1) JPS5790006A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554308A (en) * 1978-10-17 1980-04-21 Nippon Oil Co Ltd Preparation of copolymer
JPS5728114A (en) * 1980-07-28 1982-02-15 Sanueru Kogyo Kk Covering film for agriculture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554308A (en) * 1978-10-17 1980-04-21 Nippon Oil Co Ltd Preparation of copolymer
JPS5728114A (en) * 1980-07-28 1982-02-15 Sanueru Kogyo Kk Covering film for agriculture

Also Published As

Publication number Publication date
JPH0313245B2 (en) 1991-02-22

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