JPS524588A - Preparation of ethylene-propylene block - Google Patents

Preparation of ethylene-propylene block

Info

Publication number
JPS524588A
JPS524588A JP8125575A JP8125575A JPS524588A JP S524588 A JPS524588 A JP S524588A JP 8125575 A JP8125575 A JP 8125575A JP 8125575 A JP8125575 A JP 8125575A JP S524588 A JPS524588 A JP S524588A
Authority
JP
Japan
Prior art keywords
ethylene
preparation
propylene block
propylene
prepare
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.)
Pending
Application number
JP8125575A
Other languages
Japanese (ja)
Inventor
Mamoru Asada
Akinobu Shiga
Noriyoshi Matsuyama
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP8125575A priority Critical patent/JPS524588A/en
Publication of JPS524588A publication Critical patent/JPS524588A/en
Pending legal-status Critical Current

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  • Graft Or Block Polymers (AREA)

Abstract

PURPOSE: To prepare an ethylene-propylene block copolymer by three-stage polymerization in liquid propylene.
COPYRIGHT: (C)1977,JPO&Japio
JP8125575A 1975-06-30 1975-06-30 Preparation of ethylene-propylene block Pending JPS524588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8125575A JPS524588A (en) 1975-06-30 1975-06-30 Preparation of ethylene-propylene block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8125575A JPS524588A (en) 1975-06-30 1975-06-30 Preparation of ethylene-propylene block

Publications (1)

Publication Number Publication Date
JPS524588A true JPS524588A (en) 1977-01-13

Family

ID=13741265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8125575A Pending JPS524588A (en) 1975-06-30 1975-06-30 Preparation of ethylene-propylene block

Country Status (1)

Country Link
JP (1) JPS524588A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316692A2 (en) 1987-11-11 1989-05-24 Idemitsu Petrochemical Co. Ltd. Propylene polymer composition
EP0700943A1 (en) 1994-08-18 1996-03-13 Chisso Corporation A highly stiff propylene-ethylene block copolymer composition and a process for producing the same
US5854355A (en) * 1995-04-24 1998-12-29 Chisso Corporation Continuous process for preparation of highly rigid propylene-ethylene block copolymers
DE19723423B4 (en) * 1996-06-04 2008-06-05 Sumitomo Chemical Co. Ltd. propylene block

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316692A2 (en) 1987-11-11 1989-05-24 Idemitsu Petrochemical Co. Ltd. Propylene polymer composition
US4946898A (en) * 1987-11-11 1990-08-07 Idemitsu Petrochemical Co., Ltd. Propylene polymer composition
EP0700943A1 (en) 1994-08-18 1996-03-13 Chisso Corporation A highly stiff propylene-ethylene block copolymer composition and a process for producing the same
US5672658A (en) * 1994-08-18 1997-09-30 Chisso Corporation Highly stiff propylene-ethylene block copolymer composition and a process for producing the same
US5854355A (en) * 1995-04-24 1998-12-29 Chisso Corporation Continuous process for preparation of highly rigid propylene-ethylene block copolymers
DE19723423B4 (en) * 1996-06-04 2008-06-05 Sumitomo Chemical Co. Ltd. propylene block

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