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JPS55139445A - Polypropylene composition - Google Patents

Polypropylene composition

Info

Publication number
JPS55139445A
JPS55139445A JP4670279A JP4670279A JPS55139445A JP S55139445 A JPS55139445 A JP S55139445A JP 4670279 A JP4670279 A JP 4670279A JP 4670279 A JP4670279 A JP 4670279A JP S55139445 A JPS55139445 A JP S55139445A
Authority
JP
Japan
Prior art keywords
medium
density polyethylene
crystalline polypropylene
copolymer
2w20wt
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
JP4670279A
Other languages
Japanese (ja)
Other versions
JPS6360063B2 (en
Inventor
Tsutomu Mitsunaga
Itaru Seo
Kazuyuki Nomura
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.)
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu 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 Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Priority to JP4670279A priority Critical patent/JPS55139445A/en
Publication of JPS55139445A publication Critical patent/JPS55139445A/en
Publication of JPS6360063B2 publication Critical patent/JPS6360063B2/ja
Granted legal-status Critical Current

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  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To improve low-temperature impact resistance, melt strength, uniform- thickness molding property, etc., without reduction of transparency or rigidity, by compounding a crystalline polypropylene with specified amounts of a medium- density polyethylene and an amorphous ethylene-propylene copolymer.
CONSTITUTION: A crystalline polypropylene of melt index 0.1W5g/min is compounded with 2W20wt% of medium-density polyethylene of melt index 0.2W 5g/min and with 2W20wt% of amorphous ethylene-propylene copolymer of Moony viscosity 40W100, in such proportions that the resulting composition contains 10W 22wt% of the total of said medium-density polyethylene and said copolymer and the balance of said crystalline polypropylene. The copolymer preferably contains ethylene and propylene at a wt. ratio of 30W90:70W10. When used for, e.g., a cylindrical container as a packaging material, the composition gives a molded product which has uniform thickness at AWK and excellent flexing strength.
COPYRIGHT: (C)1980,JPO&Japio
JP4670279A 1979-04-18 1979-04-18 Polypropylene composition Granted JPS55139445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4670279A JPS55139445A (en) 1979-04-18 1979-04-18 Polypropylene composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4670279A JPS55139445A (en) 1979-04-18 1979-04-18 Polypropylene composition

Publications (2)

Publication Number Publication Date
JPS55139445A true JPS55139445A (en) 1980-10-31
JPS6360063B2 JPS6360063B2 (en) 1988-11-22

Family

ID=12754694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4670279A Granted JPS55139445A (en) 1979-04-18 1979-04-18 Polypropylene composition

Country Status (1)

Country Link
JP (1) JPS55139445A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174329A (en) * 1981-04-21 1982-10-27 Du Pont Mitsui Polychem Co Ltd Resin composition for extrusion molding
JPS60212443A (en) * 1984-04-09 1985-10-24 Toa Nenryo Kogyo Kk Polypropylene composition
JPH10237239A (en) * 1996-10-31 1998-09-08 Sumitomo Bakelite Co Ltd Resin composition for thermoforming and sheet made therefrom
JP2007298382A (en) * 2006-04-28 2007-11-15 Railway Technical Res Inst Wire breakage detector in strand vibration test

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999351A (en) * 1972-12-22 1974-09-19
JPS53108146A (en) * 1977-03-03 1978-09-20 Sumitomo Chem Co Ltd Resin compositon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999351A (en) * 1972-12-22 1974-09-19
JPS53108146A (en) * 1977-03-03 1978-09-20 Sumitomo Chem Co Ltd Resin compositon

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174329A (en) * 1981-04-21 1982-10-27 Du Pont Mitsui Polychem Co Ltd Resin composition for extrusion molding
JPS6241529B2 (en) * 1981-04-21 1987-09-03 Mitsui Petrochemical Ind
JPS60212443A (en) * 1984-04-09 1985-10-24 Toa Nenryo Kogyo Kk Polypropylene composition
JPH0124411B2 (en) * 1984-04-09 1989-05-11 Toa Nenryo Kogyo Kk
JPH10237239A (en) * 1996-10-31 1998-09-08 Sumitomo Bakelite Co Ltd Resin composition for thermoforming and sheet made therefrom
JP2007298382A (en) * 2006-04-28 2007-11-15 Railway Technical Res Inst Wire breakage detector in strand vibration test

Also Published As

Publication number Publication date
JPS6360063B2 (en) 1988-11-22

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