JPS57137341A - Preparation of modified propylene-ethylene block copolymer composition - Google Patents

Preparation of modified propylene-ethylene block copolymer composition

Info

Publication number
JPS57137341A
JPS57137341A JP56023150A JP2315081A JPS57137341A JP S57137341 A JPS57137341 A JP S57137341A JP 56023150 A JP56023150 A JP 56023150A JP 2315081 A JP2315081 A JP 2315081A JP S57137341 A JPS57137341 A JP S57137341A
Authority
JP
Japan
Prior art keywords
block copolymer
mixture
ethylene block
propylene
preparation
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
JP56023150A
Other languages
Japanese (ja)
Other versions
JPH0144738B2 (en
Inventor
Eitaro Asaeda
Hisashi Yoshimatsu
Yoshinori Takahashi
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 JP56023150A priority Critical patent/JPS57137341A/en
Publication of JPS57137341A publication Critical patent/JPS57137341A/en
Publication of JPH0144738B2 publication Critical patent/JPH0144738B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To improve the impact blushing resistance of a propylene-ethylene block copolymer without lowering its impact resistance, gloss, transparency, etc., by heating a mixture of the copolymer and high-density polyethylene in the presence of an organic peroxide.
CONSTITUTION: A mixture of (A) a propylene-ethylene block copolymer and (B) a high-density polyethylene having a desntity of ≥0.94 and esp. having a melt flow index of 3W30g/10min. (the content of the component B in the mixture is pref. 5W25wt%) is heat-treated at 180W300°C in the presence of an organic peroxide (e.g. ketone peroxide, percarbonate, etc.). The amount of the peroxide is 0.001W1.0wt%, pref. 0.01W0.5wt% of the mixture. The component (B) is, e.g. an ethylene homopolymer or an ethylene copolymer containing ≤10wt% propylene, butene-1, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP56023150A 1981-02-20 1981-02-20 Preparation of modified propylene-ethylene block copolymer composition Granted JPS57137341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023150A JPS57137341A (en) 1981-02-20 1981-02-20 Preparation of modified propylene-ethylene block copolymer composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023150A JPS57137341A (en) 1981-02-20 1981-02-20 Preparation of modified propylene-ethylene block copolymer composition

Publications (2)

Publication Number Publication Date
JPS57137341A true JPS57137341A (en) 1982-08-24
JPH0144738B2 JPH0144738B2 (en) 1989-09-29

Family

ID=12102542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023150A Granted JPS57137341A (en) 1981-02-20 1981-02-20 Preparation of modified propylene-ethylene block copolymer composition

Country Status (1)

Country Link
JP (1) JPS57137341A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000824A1 (en) * 1983-08-18 1985-02-28 Mitsui Toatsu Chemicals, Incorporated Process for producing polypropylene resin composition
WO2009008459A1 (en) * 2007-07-06 2009-01-15 Sumitomo Chemical Company, Limited Polypropylene resin composition and film made from the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4982200A (en) * 1972-12-12 1974-08-07
JPS543860A (en) * 1977-06-13 1979-01-12 Mitsubishi Chem Ind Ltd Manufacture of modified block copolymer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4982200A (en) * 1972-12-12 1974-08-07
JPS543860A (en) * 1977-06-13 1979-01-12 Mitsubishi Chem Ind Ltd Manufacture of modified block copolymer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000824A1 (en) * 1983-08-18 1985-02-28 Mitsui Toatsu Chemicals, Incorporated Process for producing polypropylene resin composition
GB2155026A (en) * 1983-08-18 1985-09-18 Mitsui Toatsu Chemicals Process for producing polypropylene composition
US4626565A (en) * 1983-08-18 1986-12-02 Mitsui Toatsu Chemicals, Incorporated Preparation process for polypropylene-base resin compositions
WO2009008459A1 (en) * 2007-07-06 2009-01-15 Sumitomo Chemical Company, Limited Polypropylene resin composition and film made from the same
JP2009013332A (en) * 2007-07-06 2009-01-22 Sumitomo Chemical Co Ltd Polypropylene-based resin composition and film comprising the same
US8022148B2 (en) 2007-07-06 2011-09-20 Sumitomo Chemical Company, Limited Polypropylene resin composition and film made thereof

Also Published As

Publication number Publication date
JPH0144738B2 (en) 1989-09-29

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