JPS5684728A - Improvement in property of molded product from polypropylene composition - Google Patents

Improvement in property of molded product from polypropylene composition

Info

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
Application number
JP16082279A
Other languages
Japanese (ja)
Inventor
Junichi Ito
Katsuo Mitani
Kiyoshi Sumi
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP16082279A priority Critical patent/JPS5684728A/en
Publication of JPS5684728A publication Critical patent/JPS5684728A/en
Pending legal-status Critical Current

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
JP16082279A 1979-12-13 1979-12-13 Improvement in property of molded product from polypropylene composition Pending JPS5684728A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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