JPS5661416A - Preparation of propylene-ethylene block copolymer - Google Patents

Preparation of propylene-ethylene block copolymer

Info

Publication number
JPS5661416A
JPS5661416A JP13792979A JP13792979A JPS5661416A JP S5661416 A JPS5661416 A JP S5661416A JP 13792979 A JP13792979 A JP 13792979A JP 13792979 A JP13792979 A JP 13792979A JP S5661416 A JPS5661416 A JP S5661416A
Authority
JP
Japan
Prior art keywords
propylene
ethylene
block copolymer
copolymerized
preparation
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
JP13792979A
Other languages
Japanese (ja)
Other versions
JPS6215086B2 (en
Inventor
Shinichi Saito
Noriyuki Sekine
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 JP13792979A priority Critical patent/JPS5661416A/en
Publication of JPS5661416A publication Critical patent/JPS5661416A/en
Publication of JPS6215086B2 publication Critical patent/JPS6215086B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Graft Or Block Polymers (AREA)

Abstract

PURPOSE: To obtain the titled block copolymer, excellent in rigidity, impact strength, luster, etc., and suitable as a car part, etc., by copolymerizing two kinds of propylene-ethylene mixture in two steps by use of a stereoregular catalyst.
CONSTITUTION: A propylene-ethylene mixture is copolymerized in two steps, at a polymerization temperature of about 40W80°C, at a polymerization pressure of about 1W35atm., in a hydrocarbon solvent such as hexane or toluene, by use of a stereoregular catalyst such as one obtained by combining titanium trickloride and diethylaluminum monochloride. In the first step, a propylene-ethylene mixture containing 0.4W1.4wt% of ethylene, is copolymerized to an extent of 70W90wt% of the total weight, and in the second step, a propylene-ethylene mixture containing 30W50wt% of ethylene is copolymerized to an extent of 30W10wt% of the total weight, to obtain the titled block copolymer.
COPYRIGHT: (C)1981,JPO&Japio
JP13792979A 1979-10-24 1979-10-24 Preparation of propylene-ethylene block copolymer Granted JPS5661416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13792979A JPS5661416A (en) 1979-10-24 1979-10-24 Preparation of propylene-ethylene block copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13792979A JPS5661416A (en) 1979-10-24 1979-10-24 Preparation of propylene-ethylene block copolymer

Publications (2)

Publication Number Publication Date
JPS5661416A true JPS5661416A (en) 1981-05-26
JPS6215086B2 JPS6215086B2 (en) 1987-04-06

Family

ID=15209979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13792979A Granted JPS5661416A (en) 1979-10-24 1979-10-24 Preparation of propylene-ethylene block copolymer

Country Status (1)

Country Link
JP (1) JPS5661416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670014A (en) * 1979-11-13 1981-06-11 Mitsui Toatsu Chem Inc Propylene copolymer for forming sheet
JP2001192426A (en) * 1999-11-02 2001-07-17 Chisso Corp Propylene-based block copolymer composition
JPWO2013081080A1 (en) * 2011-12-02 2015-04-27 住友化学株式会社 Process for producing olefin block polymer using plural kinds of transition metal catalysts

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49120986A (en) * 1973-03-12 1974-11-19
JPS50115296A (en) * 1974-02-27 1975-09-09
JPS51133393A (en) * 1975-05-15 1976-11-19 Showa Denko Kk A process for manufacturing a propylene copolymer
JPS523684A (en) * 1975-06-27 1977-01-12 Showa Denko Kk Process for preparing ropylene copolymer
JPS5388049A (en) * 1977-01-13 1978-08-03 Mitsui Petrochem Ind Ltd Molding polymer composition and its preparation
JPS5424995A (en) * 1977-07-27 1979-02-24 Showa Denko Kk Production of propylene copolymer
JPS5632516A (en) * 1979-08-27 1981-04-02 Idemitsu Petrochem Co Ltd Production of propylene block copolymer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49120986A (en) * 1973-03-12 1974-11-19
JPS50115296A (en) * 1974-02-27 1975-09-09
JPS51133393A (en) * 1975-05-15 1976-11-19 Showa Denko Kk A process for manufacturing a propylene copolymer
JPS523684A (en) * 1975-06-27 1977-01-12 Showa Denko Kk Process for preparing ropylene copolymer
JPS5388049A (en) * 1977-01-13 1978-08-03 Mitsui Petrochem Ind Ltd Molding polymer composition and its preparation
JPS5424995A (en) * 1977-07-27 1979-02-24 Showa Denko Kk Production of propylene copolymer
JPS5632516A (en) * 1979-08-27 1981-04-02 Idemitsu Petrochem Co Ltd Production of propylene block copolymer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5670014A (en) * 1979-11-13 1981-06-11 Mitsui Toatsu Chem Inc Propylene copolymer for forming sheet
JPS6227091B2 (en) * 1979-11-13 1987-06-12 Mitsui Toatsu Chemicals
JP2001192426A (en) * 1999-11-02 2001-07-17 Chisso Corp Propylene-based block copolymer composition
JPWO2013081080A1 (en) * 2011-12-02 2015-04-27 住友化学株式会社 Process for producing olefin block polymer using plural kinds of transition metal catalysts

Also Published As

Publication number Publication date
JPS6215086B2 (en) 1987-04-06

Similar Documents

Publication Publication Date Title
KR840002015A (en) Polypropylene Compositions with Improved Impact Strength Properties at Low Temperatures
JPS5392887A (en) Ethylene copolymer
JPS5657814A (en) Preparation of molding olefin copolymer
JPS5610506A (en) Production of ethylene polymer composition
JPS56811A (en) Preparation of olefin polymer or copolymer
CA2071652A1 (en) Thermoplastic polymer composition
CA2011188A1 (en) Process for polymerizing olefins and catalyst for polymerizing olefins
JPS56120712A (en) Preparation of poly alpha-olefin
CA2072489A1 (en) Catalyst components for polymerization of olefins
CA2128635A1 (en) Curable carbamate-functional polymers
CA2026765A1 (en) Blends based on vinyl-aromatic polymers endowed with high mechanical characteristics
JPS56139520A (en) Preparation of block copolymer
JPS5655416A (en) Production of propylene/ethylene block copolymer
JPS54139693A (en) Preparation of propylene-ethylene block copolymer
JPS5661416A (en) Preparation of propylene-ethylene block copolymer
JPS55764A (en) Production of polypropylene composition
JPS5424995A (en) Production of propylene copolymer
JPS5661418A (en) Preparation of improved propylene-ethylene block copolymer
JPS523684A (en) Process for preparing ropylene copolymer
JPS56815A (en) Preparation of polyolefin
JPS5335789A (en) Preparation of propylene-ethylene copolymer
IE821816L (en) Polymerisation of alpha olefins
JPS55116716A (en) Continuous preparation of propylene-ethylene block copolymer
JPS5661417A (en) Preparation of propylene-ethylene block copolymer
JPS5470388A (en) Production of olefin polymer