JPS56120743A - Preparation of polypropylene composition - Google Patents

Preparation of polypropylene composition

Info

Publication number
JPS56120743A
JPS56120743A JP2407780A JP2407780A JPS56120743A JP S56120743 A JPS56120743 A JP S56120743A JP 2407780 A JP2407780 A JP 2407780A JP 2407780 A JP2407780 A JP 2407780A JP S56120743 A JPS56120743 A JP S56120743A
Authority
JP
Japan
Prior art keywords
propylene
random copolymer
ethylene random
polypropylene
polyethylene
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
JP2407780A
Other languages
Japanese (ja)
Other versions
JPS6241530B2 (en
Inventor
Akira Todo
Hiroichi Kajiura
Mikio Nakagawa
Shinji Osato
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 JP2407780A priority Critical patent/JPS56120743A/en
Publication of JPS56120743A publication Critical patent/JPS56120743A/en
Publication of JPS6241530B2 publication Critical patent/JPS6241530B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To prepare the titled composition having well-balanced impact strength and rigidity, and especially excellent low-temperature impact strength and gloss, by blending a specific propylene.ethylene random copolymer, a polypropylene, and a polyethylene.
CONSTITUTION: (A) 3W20wt% of a propylene.ethylene random copolymer having an intrinsic viscosity [η] (measured in decaline at 135°C) of 2W10dl/g, propylene content of 30W85mol%, microisotacticity of ≥0.8 defined by the sequence of three propylene units, and boiling cyclohexane insoluble content of ≤10wt%, is mixed with (B) 2W30wt% of a polyethylene, and the mixture is blended with (C) 65W 95wt% of a polypropylene having [η] of 1W4dl/g to obtain 100wt% of the objective composition. Pref. 1W5wt% of the propylene.ethylene random copolymer is further added to the mixture of (A) and (B) together with the (C) component.
COPYRIGHT: (C)1981,JPO&Japio
JP2407780A 1980-02-29 1980-02-29 Preparation of polypropylene composition Granted JPS56120743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2407780A JPS56120743A (en) 1980-02-29 1980-02-29 Preparation of polypropylene composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2407780A JPS56120743A (en) 1980-02-29 1980-02-29 Preparation of polypropylene composition

Publications (2)

Publication Number Publication Date
JPS56120743A true JPS56120743A (en) 1981-09-22
JPS6241530B2 JPS6241530B2 (en) 1987-09-03

Family

ID=12128350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2407780A Granted JPS56120743A (en) 1980-02-29 1980-02-29 Preparation of polypropylene composition

Country Status (1)

Country Link
JP (1) JPS56120743A (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
JPS58208340A (en) * 1982-05-31 1983-12-05 Hashimoto Forming Co Ltd Composition material for resin molding

Cited By (4)

* 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
JPH0148939B2 (en) * 1981-08-12 1989-10-23 Mitsubishi Chem Ind
JPS58208340A (en) * 1982-05-31 1983-12-05 Hashimoto Forming Co Ltd Composition material for resin molding
JPH0221412B2 (en) * 1982-05-31 1990-05-14 Hashimoto Forming Kogyo Co

Also Published As

Publication number Publication date
JPS6241530B2 (en) 1987-09-03

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