JPS5684728A - Improvement in property of molded product from polypropylene composition - Google Patents
Improvement in property of molded product from polypropylene compositionInfo
- Publication number
- JPS5684728A JPS5684728A JP16082279A JP16082279A JPS5684728A JP S5684728 A JPS5684728 A JP S5684728A JP 16082279 A JP16082279 A JP 16082279A JP 16082279 A JP16082279 A JP 16082279A JP S5684728 A JPS5684728 A JP S5684728A
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- elastomer
- mixing
- molding
- improvement
- 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.)
- Pending
Links
Abstract
PURPOSE: To heighten the impact resistance and resistance to low-temperature embrittlement without detriment to the excellent properties inherent in PP, such as rigidity, hardness and tensile strength, by heat-treating at a specified temperature, a molded product formed from a composition prepared by mixing PP with an elastomer.
CONSTITUTION: A molded product is obtained by molding a composition obtained by mixing, for example, by a melt-mixing process, (A) 50W99wt% of PP with (B) 50W1wt% of an elastomer by a usual molding process such as press molding. This molded product is treated at a temperature higher than 80°C and lower than the m.p. of PP in an inert gas such as nitrogen or in an inert liquid such as a silicone oil. As the elastomer (B) is preferred an ethylene/propylene rubber having an ethylene content of 30W90mol%, a polyethylenic fusion enthalpy of below 10cal/g, a melt viscosity of 0.5W50 and a block character of 0.7W2.0.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16082279A JPS5684728A (en) | 1979-12-13 | 1979-12-13 | Improvement in property of molded product from polypropylene composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16082279A JPS5684728A (en) | 1979-12-13 | 1979-12-13 | Improvement in property of molded product from polypropylene composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5684728A true JPS5684728A (en) | 1981-07-10 |
Family
ID=15723154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16082279A Pending JPS5684728A (en) | 1979-12-13 | 1979-12-13 | Improvement in property of molded product from polypropylene composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5684728A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5755704U (en) * | 1980-09-13 | 1982-04-01 | ||
JPS5757725A (en) * | 1980-09-24 | 1982-04-07 | Tokuyama Soda Co Ltd | Upgrading of molded product |
JPS637932A (en) * | 1986-06-28 | 1988-01-13 | Idemitsu Petrochem Co Ltd | Preparation of polypropylene resin molded body |
JP2014047252A (en) * | 2012-08-30 | 2014-03-17 | Japan Polypropylene Corp | Polypropylene-based resin molded article and method for producing resin molded article |
-
1979
- 1979-12-13 JP JP16082279A patent/JPS5684728A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5755704U (en) * | 1980-09-13 | 1982-04-01 | ||
JPS5836655Y2 (en) * | 1980-09-13 | 1983-08-18 | グンゼ株式会社 | Automatic packaging equipment for socks |
JPS5757725A (en) * | 1980-09-24 | 1982-04-07 | Tokuyama Soda Co Ltd | Upgrading of molded product |
JPS637932A (en) * | 1986-06-28 | 1988-01-13 | Idemitsu Petrochem Co Ltd | Preparation of polypropylene resin molded body |
JP2014047252A (en) * | 2012-08-30 | 2014-03-17 | Japan Polypropylene Corp | Polypropylene-based resin molded article and method for producing resin molded article |
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