JPS57187337A - Polypropylene composition - Google Patents
Polypropylene compositionInfo
- Publication number
- JPS57187337A JPS57187337A JP7156481A JP7156481A JPS57187337A JP S57187337 A JPS57187337 A JP S57187337A JP 7156481 A JP7156481 A JP 7156481A JP 7156481 A JP7156481 A JP 7156481A JP S57187337 A JPS57187337 A JP S57187337A
- Authority
- JP
- Japan
- Prior art keywords
- compsn
- polymers
- intrinsic viscosities
- types
- intrinsic
- 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 provide a compsn. consisting of two types of propylene polymers with different intrinsic viscosities which has excellent moldability and is free from fish eye trouble.
CONSTITUTION: Two types of crystalline propylene homopolymers or copolymers with 10wt% or less other α-olefins are blended in 40W70:60W30 by wt. so that the ratio of intrinsic viscosities between the two polymers may exceed 1.5 and the compsn. may have an intrinsic viscosity of 1W2dl/g. The two polymers have intrinsic viscosities of 0.6W1.7dl/g and 1.5W4.5dl/g, respectively, and both have an isotactic index of 80% or higher.
EFFECT: The compsn. has a low melt viscosity at a high shear rate and can be injection molded at low temp. and pressure.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7156481A JPS57187337A (en) | 1981-05-13 | 1981-05-13 | Polypropylene composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7156481A JPS57187337A (en) | 1981-05-13 | 1981-05-13 | Polypropylene composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57187337A true JPS57187337A (en) | 1982-11-18 |
JPS6354741B2 JPS6354741B2 (en) | 1988-10-31 |
Family
ID=13464328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7156481A Granted JPS57187337A (en) | 1981-05-13 | 1981-05-13 | Polypropylene composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57187337A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59199742A (en) * | 1983-04-28 | 1984-11-12 | Tounen Sekiyu Kagaku Kk | Polypropylene composition |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54144448A (en) * | 1978-05-02 | 1979-11-10 | Sumitomo Chem Co Ltd | Extrusion-coating resin composition |
JPS55123637A (en) * | 1979-03-15 | 1980-09-24 | Sumitomo Chem Co Ltd | Extruded sheet of polypropylene |
-
1981
- 1981-05-13 JP JP7156481A patent/JPS57187337A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54144448A (en) * | 1978-05-02 | 1979-11-10 | Sumitomo Chem Co Ltd | Extrusion-coating resin composition |
JPS55123637A (en) * | 1979-03-15 | 1980-09-24 | Sumitomo Chem Co Ltd | Extruded sheet of polypropylene |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59199742A (en) * | 1983-04-28 | 1984-11-12 | Tounen Sekiyu Kagaku Kk | Polypropylene composition |
JPH0113736B2 (en) * | 1983-04-28 | 1989-03-08 | Tonen Sekiyukagaku Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6354741B2 (en) | 1988-10-31 |
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