JPS5638309A - Propylene copolymer for forming film - Google Patents

Propylene copolymer for forming film

Info

Publication number
JPS5638309A
JPS5638309A JP11413879A JP11413879A JPS5638309A JP S5638309 A JPS5638309 A JP S5638309A JP 11413879 A JP11413879 A JP 11413879A JP 11413879 A JP11413879 A JP 11413879A JP S5638309 A JPS5638309 A JP S5638309A
Authority
JP
Japan
Prior art keywords
copolymer
ethylene
block
film
blocks
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
JP11413879A
Other languages
Japanese (ja)
Other versions
JPH0113487B2 (en
Inventor
Makoto Aida
Masahisa Handa
Jun Otsu
Tetsuo Inada
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 Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP11413879A priority Critical patent/JPS5638309A/en
Publication of JPS5638309A publication Critical patent/JPS5638309A/en
Publication of JPH0113487B2 publication Critical patent/JPH0113487B2/ja
Granted legal-status Critical Current

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  • Graft Or Block Polymers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To titled copolymer, useful for a bag made of a resin etc., capable of improving the tear strength and impact strength of a film and stability in molding the film, having a specific melt index, and consisting of two blocks having a specific compositions and intrinsic viscosities.
CONSTITUTION: A block copolymer with an ethylene content, based on the copolymer, of 50wt.% or less, consisting of 50W95wt% a block (A) containing less than 20wt% ethylene (including propylene homopolymer) and a block (B) containing 20wt% or more ethylene, and having a melt index of 0.01W0.5g/10min and intrinsic viscosities [η]A and [η]B of the blocks (A) and (B) in the relation expressed by the formula. The copolymer is obtained by copolymerizing a mixed gas of propylene with ethylene in the presence of activated titanium trichloride and an organoaluminum compound as catalysts in an inert gas atmosphere at high temperature and pressure while feeding hydrogen with the mixed gas to the polymerization system.
COPYRIGHT: (C)1981,JPO&Japio
JP11413879A 1979-09-07 1979-09-07 Propylene copolymer for forming film Granted JPS5638309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11413879A JPS5638309A (en) 1979-09-07 1979-09-07 Propylene copolymer for forming film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11413879A JPS5638309A (en) 1979-09-07 1979-09-07 Propylene copolymer for forming film

Publications (2)

Publication Number Publication Date
JPS5638309A true JPS5638309A (en) 1981-04-13
JPH0113487B2 JPH0113487B2 (en) 1989-03-07

Family

ID=14630082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11413879A Granted JPS5638309A (en) 1979-09-07 1979-09-07 Propylene copolymer for forming film

Country Status (1)

Country Link
JP (1) JPS5638309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63112612A (en) * 1986-10-30 1988-05-17 Idemitsu Petrochem Co Ltd Propylene polymer composition
JPH0693062A (en) * 1992-09-16 1994-04-05 Sumitomo Chem Co Ltd Polypropylene block copolymer and film therefrom

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523684A (en) * 1975-06-27 1977-01-12 Showa Denko Kk Process for preparing ropylene copolymer
JPS5439487A (en) * 1977-09-05 1979-03-26 Showa Denko Kk Preparation of propylene copolymer
JPS5543152A (en) * 1978-09-22 1980-03-26 Chisso Corp Preparation of copolymer
JPS55123637A (en) * 1979-03-15 1980-09-24 Sumitomo Chem Co Ltd Extruded sheet of polypropylene

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523684A (en) * 1975-06-27 1977-01-12 Showa Denko Kk Process for preparing ropylene copolymer
JPS5439487A (en) * 1977-09-05 1979-03-26 Showa Denko Kk Preparation of propylene copolymer
JPS5543152A (en) * 1978-09-22 1980-03-26 Chisso Corp Preparation of copolymer
JPS55123637A (en) * 1979-03-15 1980-09-24 Sumitomo Chem Co Ltd Extruded sheet of polypropylene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63112612A (en) * 1986-10-30 1988-05-17 Idemitsu Petrochem Co Ltd Propylene polymer composition
JPH0693062A (en) * 1992-09-16 1994-04-05 Sumitomo Chem Co Ltd Polypropylene block copolymer and film therefrom

Also Published As

Publication number Publication date
JPH0113487B2 (en) 1989-03-07

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