JPS55118909A - Preparation of propylene-ethylene elastic copolymer - Google Patents

Preparation of propylene-ethylene elastic copolymer

Info

Publication number
JPS55118909A
JPS55118909A JP2619579A JP2619579A JPS55118909A JP S55118909 A JPS55118909 A JP S55118909A JP 2619579 A JP2619579 A JP 2619579A JP 2619579 A JP2619579 A JP 2619579A JP S55118909 A JPS55118909 A JP S55118909A
Authority
JP
Japan
Prior art keywords
propylene
titanium
ethylene
elastic copolymer
halogen
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
JP2619579A
Other languages
Japanese (ja)
Other versions
JPS6021642B2 (en
Inventor
Akinori Toyoda
Norio Kashiwa
Akifumi Kato
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP2619579A priority Critical patent/JPS6021642B2/en
Publication of JPS55118909A publication Critical patent/JPS55118909A/en
Publication of JPS6021642B2 publication Critical patent/JPS6021642B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerisation Methods In General (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To prepare a propylene-ethylene elastic copolymer having a high molecular weight reduced thackiness and a high bulk density, by prepolymerizing a specific amoung of propylene and thereafter carrying out the copolymerization in the presence of a catalyst system comprising an organoaluminum compound and a component containing Mg, Ti, a halogen and an electron donor.
CONSTITUTION: In the presence of a catalyst system comprising (A) a solid catalyst containing as essential components, (a) magnesium (e.g. as magnesium chloride), (b) titanium (e.g. as titanium tetrachloride), (c) a halogen and (d) an electron donor (e.g. ethyl benzoate), and (B) an organoaluminum compound, 0.1W1,500g of propylene on the basis of 1m mole of the titanium is prepolymerized and thereafter copolymerized with ethylene substantially in liquefied propylene medium at 30W90°C. Preferably (c)/(b) is 8W100, (a)/(b) is 5W80 and (d)/(b) is 0.1W7. Preferably (A) has a specific surface area of ≥4m2/g and particle diameters of ≤200μ.
COPYRIGHT: (C)1980,JPO&Japio
JP2619579A 1979-03-08 1979-03-08 Method for producing propylene/ethylene elastomeric copolymer Expired JPS6021642B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2619579A JPS6021642B2 (en) 1979-03-08 1979-03-08 Method for producing propylene/ethylene elastomeric copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2619579A JPS6021642B2 (en) 1979-03-08 1979-03-08 Method for producing propylene/ethylene elastomeric copolymer

Publications (2)

Publication Number Publication Date
JPS55118909A true JPS55118909A (en) 1980-09-12
JPS6021642B2 JPS6021642B2 (en) 1985-05-29

Family

ID=12186702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2619579A Expired JPS6021642B2 (en) 1979-03-08 1979-03-08 Method for producing propylene/ethylene elastomeric copolymer

Country Status (1)

Country Link
JP (1) JPS6021642B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5620011A (en) * 1979-07-27 1981-02-25 El Paso Polyolefins Manufacture of ethyleneepropylene block copolymer
JPS57179207A (en) * 1981-04-27 1982-11-04 Showa Denko Kk Production of thermoplastic elastomer
JPS59213706A (en) * 1983-05-20 1984-12-03 Idemitsu Petrochem Co Ltd Continuous polymerization of alpha-olefin
EP1209165A2 (en) 1993-06-07 2002-05-29 Mitsui Chemicals, Inc. Novel transition metal compound for use as a polymerisation caltalyst

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5620011A (en) * 1979-07-27 1981-02-25 El Paso Polyolefins Manufacture of ethyleneepropylene block copolymer
JPS57179207A (en) * 1981-04-27 1982-11-04 Showa Denko Kk Production of thermoplastic elastomer
JPS59213706A (en) * 1983-05-20 1984-12-03 Idemitsu Petrochem Co Ltd Continuous polymerization of alpha-olefin
EP1209165A2 (en) 1993-06-07 2002-05-29 Mitsui Chemicals, Inc. Novel transition metal compound for use as a polymerisation caltalyst

Also Published As

Publication number Publication date
JPS6021642B2 (en) 1985-05-29

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