JPS5560542A - Polyolefin composition - Google Patents

Polyolefin composition

Info

Publication number
JPS5560542A
JPS5560542A JP13358378A JP13358378A JPS5560542A JP S5560542 A JPS5560542 A JP S5560542A JP 13358378 A JP13358378 A JP 13358378A JP 13358378 A JP13358378 A JP 13358378A JP S5560542 A JPS5560542 A JP S5560542A
Authority
JP
Japan
Prior art keywords
molecular weight
polyolefin
viscosity
organo
halide
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
JP13358378A
Other languages
Japanese (ja)
Other versions
JPS623864B2 (en
Inventor
Toru Tanaka
Kazutoshi Iwatani
Osamu Kidai
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP13358378A priority Critical patent/JPS5560542A/en
Publication of JPS5560542A publication Critical patent/JPS5560542A/en
Publication of JPS623864B2 publication Critical patent/JPS623864B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To prepare the title compostion having excellent impact strength, environmental crack resistance, and moldability, by blending a specific high molecular weight polyolefin and a low molecular weight polyolefin prepared in the presence of a specific catalyst.
CONSTITUTION: A composition composed of (A) 30W70 parts by weight of a polyolefin having a density of 0.915W0.955 and a viscosity-average molecular weight of 300,000W700,000, and (B) 70W30 parts of a polyolefin having a density of 0.940W 0.977 and a viscosity-average molecualr weight of 10,000W40,000, wherein the ratio of the viscosity-average molecular weight of A to taht of B is 15W55, and the melt index of the composition is less than 0.05. The polyolefins A and B are prepared by polymerising ethylene or ethylene and ≤10wt% of other α-olefin, in the presence of a catalyst composed of (a) a reaction product of an oxygen-containing organo-magnesium compound and a Ti-halide, or a reaction product of an oxygen- containing oragne-magnesium compound, an exgano-containing organo-titanium compound and an Al-halide, and (b) an organo-aluminum compound.
COPYRIGHT: (C)1980,JPO&Japio
JP13358378A 1978-10-30 1978-10-30 Polyolefin composition Granted JPS5560542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13358378A JPS5560542A (en) 1978-10-30 1978-10-30 Polyolefin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13358378A JPS5560542A (en) 1978-10-30 1978-10-30 Polyolefin composition

Publications (2)

Publication Number Publication Date
JPS5560542A true JPS5560542A (en) 1980-05-07
JPS623864B2 JPS623864B2 (en) 1987-01-27

Family

ID=15108193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13358378A Granted JPS5560542A (en) 1978-10-30 1978-10-30 Polyolefin composition

Country Status (1)

Country Link
JP (1) JPS5560542A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126834A (en) * 1981-01-30 1982-08-06 Sumitomo Chem Co Ltd Ethylene-alpha-olefin copolymer resin composition
JPS582339A (en) * 1981-06-30 1983-01-07 Showa Denko Kk Ethylene copolymer composition
JPS5815547A (en) * 1981-07-22 1983-01-28 Showa Denko Kk Ethylenic copolymer composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0189857U (en) * 1987-12-08 1989-06-13
MX2021010522A (en) 2019-03-01 2022-03-11 Leif Andreas Andersen Automatic system for cutting tool inspection and replacement.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126834A (en) * 1981-01-30 1982-08-06 Sumitomo Chem Co Ltd Ethylene-alpha-olefin copolymer resin composition
JPS582339A (en) * 1981-06-30 1983-01-07 Showa Denko Kk Ethylene copolymer composition
JPS5815547A (en) * 1981-07-22 1983-01-28 Showa Denko Kk Ethylenic copolymer composition

Also Published As

Publication number Publication date
JPS623864B2 (en) 1987-01-27

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