JPS57102909A - Polyolefin lid - Google Patents

Polyolefin lid

Info

Publication number
JPS57102909A
JPS57102909A JP55177136A JP17713680A JPS57102909A JP S57102909 A JPS57102909 A JP S57102909A JP 55177136 A JP55177136 A JP 55177136A JP 17713680 A JP17713680 A JP 17713680A JP S57102909 A JPS57102909 A JP S57102909A
Authority
JP
Japan
Prior art keywords
lid
injecting
catalyst system
polyolefin
value
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
JP55177136A
Other languages
Japanese (ja)
Other versions
JPH0437087B2 (en
Inventor
Masatoshi Ogiyu
Shiro Utsugi
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 JP55177136A priority Critical patent/JPS57102909A/en
Publication of JPS57102909A publication Critical patent/JPS57102909A/en
Publication of JPH0437087B2 publication Critical patent/JPH0437087B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: A lid made of a polyolefin having a good resin melt flow and excellent stress cracking resistance, heat resistance, mechanical strength, etc., prepared by injecting a specified ethylene/α-olefin copolymer.
CONSTITUTION: Use is made of a catalyst system consisting of a solid substance containing magnesium and titanium and/or vanadium (e.g., MgO-RX-TiCl4, wherein R is an organic residue, and X is a halogen) and an organoaluminum compound (e.g., triethylaluminum). Thus, the titled lid is formed by copolymerizing ethylene with a 3W12C α-olefin in vapor phase by use of the above catalyst system and injecting the produced copolymer, density 0.89W0.945, melt index 0.5W40, double bond content ≤ about one per 1,000 carbon atoms, n-value of 1.2W3, where the n-value is defined by the expression, wherein γ is shear rate (sec-1, 170°C), τ is shear stress (dyn/cm2, 170°C).
COPYRIGHT: (C)1982,JPO&Japio
JP55177136A 1980-12-17 1980-12-17 Polyolefin lid Granted JPS57102909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55177136A JPS57102909A (en) 1980-12-17 1980-12-17 Polyolefin lid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55177136A JPS57102909A (en) 1980-12-17 1980-12-17 Polyolefin lid

Publications (2)

Publication Number Publication Date
JPS57102909A true JPS57102909A (en) 1982-06-26
JPH0437087B2 JPH0437087B2 (en) 1992-06-18

Family

ID=16025804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55177136A Granted JPS57102909A (en) 1980-12-17 1980-12-17 Polyolefin lid

Country Status (1)

Country Link
JP (1) JPS57102909A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154489A (en) * 1978-03-31 1979-12-05 Union Carbide Corp Product molded from ethylene hydrocarbon copolymer
JPS5554308A (en) * 1978-10-17 1980-04-21 Nippon Oil Co Ltd Preparation of copolymer
JPS5556111A (en) * 1978-10-20 1980-04-24 Nippon Oil Co Ltd Preparation of copolymer
JPS5556110A (en) * 1978-10-20 1980-04-24 Nippon Oil Co Ltd Preparation of copolymer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154489A (en) * 1978-03-31 1979-12-05 Union Carbide Corp Product molded from ethylene hydrocarbon copolymer
JPS5554308A (en) * 1978-10-17 1980-04-21 Nippon Oil Co Ltd Preparation of copolymer
JPS5556111A (en) * 1978-10-20 1980-04-24 Nippon Oil Co Ltd Preparation of copolymer
JPS5556110A (en) * 1978-10-20 1980-04-24 Nippon Oil Co Ltd Preparation of copolymer

Also Published As

Publication number Publication date
JPH0437087B2 (en) 1992-06-18

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