JPS56162614A - Heat restoration type molding and its preparation - Google Patents

Heat restoration type molding and its preparation

Info

Publication number
JPS56162614A
JPS56162614A JP6741080A JP6741080A JPS56162614A JP S56162614 A JPS56162614 A JP S56162614A JP 6741080 A JP6741080 A JP 6741080A JP 6741080 A JP6741080 A JP 6741080A JP S56162614 A JPS56162614 A JP S56162614A
Authority
JP
Japan
Prior art keywords
transition point
order transition
molding
temperature
heating
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
JP6741080A
Other languages
Japanese (ja)
Inventor
Shigeru Igarashi
Shiro Nakayama
Masatsugu Ishibashi
Mitsutaka Tanida
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP6741080A priority Critical patent/JPS56162614A/en
Publication of JPS56162614A publication Critical patent/JPS56162614A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the titled molding preferable in use for a seal material or the like without mixing a thermo fluidity substance by molding and bridging a copolymer elastic body having the second order transition point above a normal temperature, heating it to more than the second order transition point to change its form and then cooling it. CONSTITUTION:A copolymer elastic body (e.g. ethylene-propylene copolymer or the like) having the second order transition point more than the normal temperature, especially a melting point of the crystal, is molded to a designed form and is bridged by a heating method or the like in the presence of a peroxide or the like. Then, after heating it at a temperature of more than the second order transition point, it is deformed by an external force so that it may form a different shape and size from the previous shape for the convenience of later use or application during the time when the molding is keeping the heat temperature more than the second order transition point. The desired molding is obtained by releasing the external force after cooling the deformation molding keeping the temperature more than the second order transition point.
JP6741080A 1980-05-21 1980-05-21 Heat restoration type molding and its preparation Pending JPS56162614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6741080A JPS56162614A (en) 1980-05-21 1980-05-21 Heat restoration type molding and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6741080A JPS56162614A (en) 1980-05-21 1980-05-21 Heat restoration type molding and its preparation

Publications (1)

Publication Number Publication Date
JPS56162614A true JPS56162614A (en) 1981-12-14

Family

ID=13344116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6741080A Pending JPS56162614A (en) 1980-05-21 1980-05-21 Heat restoration type molding and its preparation

Country Status (1)

Country Link
JP (1) JPS56162614A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705657A (en) * 1984-02-29 1987-11-10 Essex Group, Inc. Method of making and applying ethylene-propylene diene terpolymer texturized heat shrinkable tubing
WO2009096909A1 (en) * 2008-01-28 2009-08-06 Yavuz Dogan Epdm production and reformation process for rubber products

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705657A (en) * 1984-02-29 1987-11-10 Essex Group, Inc. Method of making and applying ethylene-propylene diene terpolymer texturized heat shrinkable tubing
WO2009096909A1 (en) * 2008-01-28 2009-08-06 Yavuz Dogan Epdm production and reformation process for rubber products
US8268930B2 (en) 2008-01-28 2012-09-18 Yavuz Dogan EPDM production and reformation process for rubber products

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