JPS56122841A - Production of heat insulating pipe - Google Patents

Production of heat insulating pipe

Info

Publication number
JPS56122841A
JPS56122841A JP2700680A JP2700680A JPS56122841A JP S56122841 A JPS56122841 A JP S56122841A JP 2700680 A JP2700680 A JP 2700680A JP 2700680 A JP2700680 A JP 2700680A JP S56122841 A JPS56122841 A JP S56122841A
Authority
JP
Japan
Prior art keywords
heat insulating
ethylene
pipe
insulating pipe
cclf
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
JP2700680A
Other languages
Japanese (ja)
Other versions
JPS6249303B2 (en
Inventor
Toshio Koreeda
Akio Nojiri
Masao Horiguchi
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 KINZOKU KOGYO KK
Furukawa Metals Co Ltd
Furukawa Electric Co Ltd
Original Assignee
FURUKAWA KINZOKU KOGYO KK
Furukawa Metals Co Ltd
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 KINZOKU KOGYO KK, Furukawa Metals Co Ltd, Furukawa Electric Co Ltd filed Critical FURUKAWA KINZOKU KOGYO KK
Priority to JP2700680A priority Critical patent/JPS56122841A/en
Publication of JPS56122841A publication Critical patent/JPS56122841A/en
Publication of JPS6249303B2 publication Critical patent/JPS6249303B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems

Abstract

PURPOSE: To obtain a heat insulating pipe with excellent heat resistance and heat insulating property, by the extrusion of a polymer mixt. consisting of an ethylene- propylene block copolymer and a resin or a rubber, and contg. a cell nucleating agent and a foaming agent, out of a metal pipe, followed by expansion.
CONSTITUTION: 0.1W10pts.wt. cell nucleating agent (e.g., fine silica powder or calcium carbonate) and a volatile solvent primarily composed of CCl3F, CClF2- CClF2, CCl2F2, etc. as a foaming agent are added to 100pts.wt. polymer mixt. consisting of 60W90wt% ethylene-propylene block copolymer contg. 1W15% ethylene and 40W10wt% plastic or rubber. The purpose heat insulating pipe is easily obtd. at a low cost, by extruding the resulting composition out of a metal pipe and forming a heat insulating layer by means of heating and expansion.
COPYRIGHT: (C)1981,JPO&Japio
JP2700680A 1980-03-04 1980-03-04 Production of heat insulating pipe Granted JPS56122841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2700680A JPS56122841A (en) 1980-03-04 1980-03-04 Production of heat insulating pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2700680A JPS56122841A (en) 1980-03-04 1980-03-04 Production of heat insulating pipe

Publications (2)

Publication Number Publication Date
JPS56122841A true JPS56122841A (en) 1981-09-26
JPS6249303B2 JPS6249303B2 (en) 1987-10-19

Family

ID=12209025

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2700680A Granted JPS56122841A (en) 1980-03-04 1980-03-04 Production of heat insulating pipe

Country Status (1)

Country Link
JP (1) JPS56122841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208327A (en) * 1982-05-30 1983-12-05 Dainichi Nippon Cables Ltd Resin composition for molding heat-insulating foam layer
JPS60255834A (en) * 1984-05-31 1985-12-17 Idemitsu Petrochem Co Ltd Production of polypropylene resin foam

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5529387B2 (en) * 2007-04-06 2014-06-25 積水化学工業株式会社 Composite tube and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50132069A (en) * 1974-03-13 1975-10-18
JPS543874A (en) * 1977-06-13 1979-01-12 Mitsui Toatsu Chem Inc Molded product of foamed polypropylene and vessel therefrom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50132069A (en) * 1974-03-13 1975-10-18
JPS543874A (en) * 1977-06-13 1979-01-12 Mitsui Toatsu Chem Inc Molded product of foamed polypropylene and vessel therefrom

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58208327A (en) * 1982-05-30 1983-12-05 Dainichi Nippon Cables Ltd Resin composition for molding heat-insulating foam layer
JPH0247494B2 (en) * 1982-05-30 1990-10-19 Mitsubishi Cable Ind Ltd
JPS60255834A (en) * 1984-05-31 1985-12-17 Idemitsu Petrochem Co Ltd Production of polypropylene resin foam
JPH0471933B2 (en) * 1984-05-31 1992-11-17 Idemitsu Petrochemical Co

Also Published As

Publication number Publication date
JPS6249303B2 (en) 1987-10-19

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