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JPS55151047A - Preparation of polypropylene composition - Google Patents

Preparation of polypropylene composition

Info

Publication number
JPS55151047A
JPS55151047A JP5864679A JP5864679A JPS55151047A JP S55151047 A JPS55151047 A JP S55151047A JP 5864679 A JP5864679 A JP 5864679A JP 5864679 A JP5864679 A JP 5864679A JP S55151047 A JPS55151047 A JP S55151047A
Authority
JP
Japan
Prior art keywords
parts
polypropylene
propylene
mixed
preliminary
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
JP5864679A
Other languages
Japanese (ja)
Other versions
JPS627944B2 (en
Inventor
Shinji Osato
Mikio Nakagawa
Kazuhiro Menda
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP5864679A priority Critical patent/JPS55151047A/en
Publication of JPS55151047A publication Critical patent/JPS55151047A/en
Publication of JPS627944B2 publication Critical patent/JPS627944B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To prepare a polypropylene resin composition having high gloss and balanced rigidity and impact strength, by preliminary mixing a high-molecular propylene-ethylene random copolymer with a part of polypropylene to be modified, and then mixing the rest part of the polypropylene with the mixture, thereby effecting the homogeneous mixing of both components.
CONSTITUTION: In the preparation of a resin composition (100 parts by weight) composed of (A) 65W95 parts of highly isotactic polypropylene having an intrinsic viscosity [η] of 1W4 or its copolymer with ethylene, (B) 3W20 parts of a propylene- ethylene random copolymer having an intrinsic viscosity of 3W10, propylene content of 30W85mol%, and microisotacticity based on three propylene sequence of ≥0.8, and (C) 0W27 parts of polyethylene, the whole (B) component is mixed preliminary with a part of (A) wherein the weight ratio of the preliminary mixed (A) to (B) is 1/2W2/1, and the mixture thus obtained is mixed with the rest of the components.
EFFECT: The low temperature impact strength is remarkably improved.
COPYRIGHT: (C)1980,JPO&Japio
JP5864679A 1979-05-15 1979-05-15 Preparation of polypropylene composition Granted JPS55151047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5864679A JPS55151047A (en) 1979-05-15 1979-05-15 Preparation of polypropylene composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5864679A JPS55151047A (en) 1979-05-15 1979-05-15 Preparation of polypropylene composition

Publications (2)

Publication Number Publication Date
JPS55151047A true JPS55151047A (en) 1980-11-25
JPS627944B2 JPS627944B2 (en) 1987-02-19

Family

ID=13090342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5864679A Granted JPS55151047A (en) 1979-05-15 1979-05-15 Preparation of polypropylene composition

Country Status (1)

Country Link
JP (1) JPS55151047A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827731A (en) * 1981-08-12 1983-02-18 Mitsubishi Chem Ind Ltd Polyolefin composition and its preparation
WO1998046677A1 (en) * 1997-04-17 1998-10-22 Chisso Corporation Polypropylene composition and process for producing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827731A (en) * 1981-08-12 1983-02-18 Mitsubishi Chem Ind Ltd Polyolefin composition and its preparation
WO1998046677A1 (en) * 1997-04-17 1998-10-22 Chisso Corporation Polypropylene composition and process for producing the same
US6271310B1 (en) 1997-04-17 2001-08-07 Chisso Corporation Polypropylene composition and process for producing the same

Also Published As

Publication number Publication date
JPS627944B2 (en) 1987-02-19

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