JPS5527320A - Production of foamed polypropylene - Google Patents

Production of foamed polypropylene

Info

Publication number
JPS5527320A
JPS5527320A JP9942378A JP9942378A JPS5527320A JP S5527320 A JPS5527320 A JP S5527320A JP 9942378 A JP9942378 A JP 9942378A JP 9942378 A JP9942378 A JP 9942378A JP S5527320 A JPS5527320 A JP S5527320A
Authority
JP
Japan
Prior art keywords
ethylene
foamed
foamed polypropylene
propylene
synthetic rubber
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
JP9942378A
Other languages
Japanese (ja)
Inventor
Toshio Koreeda
Akio Nojiri
Takashi Sawazaki
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP9942378A priority Critical patent/JPS5527320A/en
Publication of JPS5527320A publication Critical patent/JPS5527320A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: A propylene-ethylene block copolymer is incorporated with synthetic rubber, polyolefin, etc., and a foaming agent and then foamed, thus giving foamed polypropylene with high extent of foaming, and high thermally insulating and mechanical properties.
CONSTITUTION: (A) 95W50wt% of propylene-ethylene block copolymer of 0.1W 10, preferably 0.1W4.0 melt index and 1W20, preferably 1W15% ethylene content, (B) 5W50wt% of synthetic rubber as (EPR containing 10W60wt% of ethylene component) and an loefinic resin as ethylene-vinyl acetate copolymer, both or ether one, are mixed with (C) 0.1W30 parts, per 100 parts of (A) + (B), of a foaming agent as a hydrazide derivative, heated and foamed in an extruder or the like to give said foamed polypropylene.
COPYRIGHT: (C)1980,JPO&Japio
JP9942378A 1978-08-15 1978-08-15 Production of foamed polypropylene Pending JPS5527320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9942378A JPS5527320A (en) 1978-08-15 1978-08-15 Production of foamed polypropylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9942378A JPS5527320A (en) 1978-08-15 1978-08-15 Production of foamed polypropylene

Publications (1)

Publication Number Publication Date
JPS5527320A true JPS5527320A (en) 1980-02-27

Family

ID=14247046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9942378A Pending JPS5527320A (en) 1978-08-15 1978-08-15 Production of foamed polypropylene

Country Status (1)

Country Link
JP (1) JPS5527320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032622A (en) * 1983-08-04 1985-02-19 Japan Styrene Paper Co Ltd Polypropylene type resin foamed body
JPH02195603A (en) * 1989-01-24 1990-08-02 Furukawa Electric Co Ltd:The Foam insulating electric wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032622A (en) * 1983-08-04 1985-02-19 Japan Styrene Paper Co Ltd Polypropylene type resin foamed body
JPS6367810B2 (en) * 1983-08-04 1988-12-27 Japan Styrene Paper Corp
JPH02195603A (en) * 1989-01-24 1990-08-02 Furukawa Electric Co Ltd:The Foam insulating electric wire

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