JPS5632516A - Production of propylene block copolymer - Google Patents

Production of propylene block copolymer

Info

Publication number
JPS5632516A
JPS5632516A JP10820779A JP10820779A JPS5632516A JP S5632516 A JPS5632516 A JP S5632516A JP 10820779 A JP10820779 A JP 10820779A JP 10820779 A JP10820779 A JP 10820779A JP S5632516 A JPS5632516 A JP S5632516A
Authority
JP
Japan
Prior art keywords
ethylene
propylene
polymerized
block copolymer
mixture
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
JP10820779A
Other languages
Japanese (ja)
Other versions
JPS6226328B2 (en
Inventor
Tadashi Yamamoto
Tsutomu Nishikawa
Tadashi Ogiwara
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.)
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu Petrochemical 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 Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Priority to JP10820779A priority Critical patent/JPS5632516A/en
Publication of JPS5632516A publication Critical patent/JPS5632516A/en
Publication of JPS6226328B2 publication Critical patent/JPS6226328B2/ja
Granted legal-status Critical Current

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  • Graft Or Block Polymers (AREA)

Abstract

PURPOSE: In the first-stage polymerization, propylene is polymerized; in the second, a mixture of ethylene and propylene is polymerized and in the third, ethylene or its mixture is polymerized, thus producing the titled copolymer for molding having high impact strength, high transparency and high luster.
CONSTITUTION: In the production of propylene block copolymer through three-stage polymerization process, the first-stage polymerizes 0.01W1wt% of ethylene based on the total block copolymer. Then, in the second-stage polymerization, a propylene mixture containing 1W10vol% of ethylene is polymerized by 65W95wt% of the total copolymer. Finally, in the third-stage polymerization, ethylene or an mixture of ethylene with propylene containing at least 15vol% ethylene is polymerized. The polymerization catalyst is preferably composed of titanium trichloride and diethylaluminum chloride.
COPYRIGHT: (C)1981,JPO&Japio
JP10820779A 1979-08-27 1979-08-27 Production of propylene block copolymer Granted JPS5632516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10820779A JPS5632516A (en) 1979-08-27 1979-08-27 Production of propylene block copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10820779A JPS5632516A (en) 1979-08-27 1979-08-27 Production of propylene block copolymer

Publications (2)

Publication Number Publication Date
JPS5632516A true JPS5632516A (en) 1981-04-02
JPS6226328B2 JPS6226328B2 (en) 1987-06-08

Family

ID=14478725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10820779A Granted JPS5632516A (en) 1979-08-27 1979-08-27 Production of propylene block copolymer

Country Status (1)

Country Link
JP (1) JPS5632516A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5661416A (en) * 1979-10-24 1981-05-26 Sumitomo Chem Co Ltd Preparation of propylene-ethylene block copolymer
JPS5767611A (en) * 1980-10-15 1982-04-24 Mitsubishi Petrochem Co Ltd Preparation of propylene copolymer
JPS5959741A (en) * 1982-09-30 1984-04-05 Daicel Chem Ind Ltd Organic pigment
JPS59195290U (en) * 1983-06-14 1984-12-25 株式会社　潤工社 Open tube for pipe fittings
EP1108733A1 (en) * 1999-12-17 2001-06-20 Idemitsu Petrochemical Co., Ltd. Propylene-ethylene block copolymer, resin composition, and blow-molded article

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924593A (en) * 1972-06-28 1974-03-05
JPS50115296A (en) * 1974-02-27 1975-09-09
JPS5335789A (en) * 1976-09-16 1978-04-03 Mitsui Toatsu Chem Inc Preparation of propylene-ethylene copolymer
JPS5366984A (en) * 1976-11-27 1978-06-14 Mitsui Toatsu Chem Inc Laminated container
JPS54113695A (en) * 1978-02-27 1979-09-05 Tokuyama Soda Co Ltd Preparation of block copolymer
JPS5571712A (en) * 1978-11-24 1980-05-30 Mitsubishi Petrochem Co Ltd Preparation of modified polypropylene

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924593A (en) * 1972-06-28 1974-03-05
JPS50115296A (en) * 1974-02-27 1975-09-09
JPS5335789A (en) * 1976-09-16 1978-04-03 Mitsui Toatsu Chem Inc Preparation of propylene-ethylene copolymer
JPS5366984A (en) * 1976-11-27 1978-06-14 Mitsui Toatsu Chem Inc Laminated container
JPS54113695A (en) * 1978-02-27 1979-09-05 Tokuyama Soda Co Ltd Preparation of block copolymer
JPS5571712A (en) * 1978-11-24 1980-05-30 Mitsubishi Petrochem Co Ltd Preparation of modified polypropylene

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5661416A (en) * 1979-10-24 1981-05-26 Sumitomo Chem Co Ltd Preparation of propylene-ethylene block copolymer
JPS6215086B2 (en) * 1979-10-24 1987-04-06 Sumitomo Chemical Co
JPS5767611A (en) * 1980-10-15 1982-04-24 Mitsubishi Petrochem Co Ltd Preparation of propylene copolymer
JPH0379367B2 (en) * 1980-10-15 1991-12-18 Mitsubishi Petrochemical Co
JPS5959741A (en) * 1982-09-30 1984-04-05 Daicel Chem Ind Ltd Organic pigment
JPS6128697B2 (en) * 1982-09-30 1986-07-02 Daicel Chem
JPS59195290U (en) * 1983-06-14 1984-12-25 株式会社　潤工社 Open tube for pipe fittings
JPH0240395Y2 (en) * 1983-06-14 1990-10-29
EP1108733A1 (en) * 1999-12-17 2001-06-20 Idemitsu Petrochemical Co., Ltd. Propylene-ethylene block copolymer, resin composition, and blow-molded article
US6313227B1 (en) 1999-12-17 2001-11-06 Idemitsu Petrochemical Co., Ltd. Propylene-ethylene block copolymer, resin composition, and blow-molded article

Also Published As

Publication number Publication date
JPS6226328B2 (en) 1987-06-08

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