JPS55161815A - Propylene block copolymer and preparation thereof - Google Patents
Propylene block copolymer and preparation thereofInfo
- 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
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
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)
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 |
-
1979
- 1979-06-01 JP JP6853279A patent/JPS55161815A/en active Granted
Cited By (2)
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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