JPS55161815A - Propylene block copolymer and preparation thereof - Google Patents

Propylene block copolymer and preparation thereof

Info

Publication number
JPS55161815A
JPS55161815A JP6853279A JP6853279A JPS55161815A JP S55161815 A JPS55161815 A JP S55161815A JP 6853279 A JP6853279 A JP 6853279A JP 6853279 A JP6853279 A JP 6853279A JP S55161815 A JPS55161815 A JP S55161815A
Authority
JP
Japan
Prior art keywords
propylene
block copolymer
propylene block
preparation
ticl
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
JP6853279A
Other languages
Japanese (ja)
Other versions
JPS638131B2 (en
Inventor
Masayuki Fujii
Mitsutaka Miyabayashi
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.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP6853279A priority Critical patent/JPS55161815A/en
Priority to US06/152,605 priority patent/US4308361A/en
Priority to DE19803019986 priority patent/DE3019986A1/en
Priority to GB8017744A priority patent/GB2052532B/en
Publication of JPS55161815A publication Critical patent/JPS55161815A/en
Publication of JPS638131B2 publication Critical patent/JPS638131B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare titled copolymer, which is excellent in heat resistance and transparency and soft, by the homopolymerization of a specified portion of propylene, in the presence of a stereoregular polymerization catalyst, followed by the copolymerization of the propylene with a linear α-olefin.
CONSTITUTION: Propylene is homopolymerized to an extent of 0.5W50wt%, in the presence of a stereoregular polymerization catalyst, composed of a Ti component such as TiCl3 or TiCl4, and of an organoaluminum compound of the formula AlRmX3-m (wherein R is H or 1W12C hydrocarbon residue; X is halogen or 1W12C alkoxy; 1≤m≤3), and then copolymerized with 3W30wt% of a 5W12C linear α- olefin such as pentene-1 or hexene-1, to an extent of 50W99.5wt%, to obtain a propylene block copolymer, having intrinsic viscosity of 0.3W15dl/g at 135°C in decalin, and olsen bending rigidity (ASTM D-747-70) of ≤6,000kg/cm2 at 10°.
COPYRIGHT: (C)1980,JPO&Japio
JP6853279A 1979-06-01 1979-06-01 Propylene block copolymer and preparation thereof Granted JPS55161815A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6853279A JPS55161815A (en) 1979-06-01 1979-06-01 Propylene block copolymer and preparation thereof
US06/152,605 US4308361A (en) 1979-06-01 1980-05-23 Propylene copolymers
DE19803019986 DE3019986A1 (en) 1979-06-01 1980-05-24 PROPYLENE MIXED POLYMERS
GB8017744A GB2052532B (en) 1979-06-01 1980-05-30 Copolymers of propylene and straight chain c5-c12 alpha olefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6853279A JPS55161815A (en) 1979-06-01 1979-06-01 Propylene block copolymer and preparation thereof

Publications (2)

Publication Number Publication Date
JPS55161815A true JPS55161815A (en) 1980-12-16
JPS638131B2 JPS638131B2 (en) 1988-02-20

Family

ID=13376432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6853279A Granted JPS55161815A (en) 1979-06-01 1979-06-01 Propylene block copolymer and preparation thereof

Country Status (1)

Country Link
JP (1) JPS55161815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108794907A (en) * 2017-04-27 2018-11-13 住友化学株式会社 Prolylene polymer composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108794907A (en) * 2017-04-27 2018-11-13 住友化学株式会社 Prolylene polymer composition
CN108794907B (en) * 2017-04-27 2022-03-18 住友化学株式会社 Propylene polymer composition

Also Published As

Publication number Publication date
JPS638131B2 (en) 1988-02-20

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