JPS53115787A - Foamable and heat-expandable plastic tube - Google Patents

Foamable and heat-expandable plastic tube

Info

Publication number
JPS53115787A
JPS53115787A JP3081777A JP3081777A JPS53115787A JP S53115787 A JPS53115787 A JP S53115787A JP 3081777 A JP3081777 A JP 3081777A JP 3081777 A JP3081777 A JP 3081777A JP S53115787 A JPS53115787 A JP S53115787A
Authority
JP
Japan
Prior art keywords
plastic tube
foamable
heat
expandable plastic
pipe
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
JP3081777A
Other languages
Japanese (ja)
Other versions
JPS5820775B2 (en
Inventor
Kadoaki Urahama
Ken Noda
Takashi Tominaga
Tadahiro Rokushiya
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial 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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP52030817A priority Critical patent/JPS5820775B2/en
Publication of JPS53115787A publication Critical patent/JPS53115787A/en
Publication of JPS5820775B2 publication Critical patent/JPS5820775B2/en
Expired 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
    • 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
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/10—Making preforms having internal stresses, e.g. plastic memory by bending plates or sheets
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/46—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses of internal surfaces
    • 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
    • B29C61/04—Thermal expansion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To manufacture a plastic tube capable of secure adhering to the inner surface of a pipe as a result of insertion into the pipe followed by expansion on heating, by drawing a sheet consisting of a thermoplastic polymer incorporated with a blowing agent and then winding the resulting drawn sheet in a specific direction to form a tube.
JP52030817A 1977-03-18 1977-03-18 Method for manufacturing foamable heat expandable tube Expired JPS5820775B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52030817A JPS5820775B2 (en) 1977-03-18 1977-03-18 Method for manufacturing foamable heat expandable tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52030817A JPS5820775B2 (en) 1977-03-18 1977-03-18 Method for manufacturing foamable heat expandable tube

Publications (2)

Publication Number Publication Date
JPS53115787A true JPS53115787A (en) 1978-10-09
JPS5820775B2 JPS5820775B2 (en) 1983-04-25

Family

ID=12314242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52030817A Expired JPS5820775B2 (en) 1977-03-18 1977-03-18 Method for manufacturing foamable heat expandable tube

Country Status (1)

Country Link
JP (1) JPS5820775B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147971A (en) * 1974-10-24 1976-04-24 Mitsubishi Plastics Ind NETSUBOCHOSEIGOSEIJUSHIKANJOTAINO SEIZOHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147971A (en) * 1974-10-24 1976-04-24 Mitsubishi Plastics Ind NETSUBOCHOSEIGOSEIJUSHIKANJOTAINO SEIZOHOHO

Also Published As

Publication number Publication date
JPS5820775B2 (en) 1983-04-25

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