FR2408449A1 - METHOD OF MANUFACTURING A TROUBLE FILM IN THERMOPLASTIC MATERIAL AND FILM THUS OBTAINED - Google Patents

METHOD OF MANUFACTURING A TROUBLE FILM IN THERMOPLASTIC MATERIAL AND FILM THUS OBTAINED

Info

Publication number
FR2408449A1
FR2408449A1 FR7605531A FR7605531A FR2408449A1 FR 2408449 A1 FR2408449 A1 FR 2408449A1 FR 7605531 A FR7605531 A FR 7605531A FR 7605531 A FR7605531 A FR 7605531A FR 2408449 A1 FR2408449 A1 FR 2408449A1
Authority
FR
France
Prior art keywords
film
tube
produce
trouble
manufacturing
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
FR7605531A
Other languages
French (fr)
Other versions
FR2408449B1 (en
Inventor
John Walker Eustance
Emilie Lucille Carley
Stanley Young Hobbs
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2408449A1 publication Critical patent/FR2408449A1/en
Application granted granted Critical
Publication of FR2408449B1 publication Critical patent/FR2408449B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/06—Solid dielectrics
    • H01G4/14—Organic dielectrics
    • H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Organic Insulating Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PROCEDE CONDUISANT A UN FILM POSSEDANT UNE SURFACE IRREGULIERE DONT LES IRREGULARITES SE TROUVENT REPARTIES UNIFORMEMENT ET ONT UN RELIEF PREDETERMINE. IL CONSISTE EN CE QUE: A.ON COMMUNIQUE CONTINUELLEMENT UNE TEMPERATURE ELEVEE ET CONSTANTE A LA SURFACE EXTERIEURE DU TUBE 16 A UN ENDROIT PREDETERMINE ENTRE LA FILIERE ET LE FRONT DE SOLIDIFICATION, POUR PRODUIRE UN EFFET DE PEAU QUI APPARAIT SUR TOUTE LA SURFACE EXTERIEURE DU TUBE, CET EFFET DE PEAU DONNANT NAISSANCE A DES SPHEROLITHES DE STRUCTURE CRISTALLINE DE TYPE III DANS UNE COUCHE EXTERIEURE DE CE TUBE, B.ON INSUFFLE CE TUBE POUR PRODUIRE UNE BULLE 20 ORIENTEE BIAXIALEMENT ET C.ON APPLATIT ET ON COUPE CETTE BULLE POUR PRODUIRE LE FILM TROUBLE. APPLICATION A LA FABRICATION DE CONDENSATEUR.PROCESS LEADING TO A FILM HAVING AN IRREGULAR SURFACE OF WHICH THE IRREGULARITIES ARE DISTRIBUTED UNIFORMLY AND HAVE A PREDETERMINED SURFACE. IT CONSISTS OF: A. A CONTINUOUSLY HIGH AND CONSTANT TEMPERATURE IS COMMUNICATED TO THE OUTER SURFACE OF TUBE 16 AT A PREDETERMINED PLACE BETWEEN THE DIE AND THE SOLIDIFICATION FRONT, TO PRODUCE A SKIN EFFECT THAT APPEARS ON THE ENTIRE EXTERIOR SURFACE TUBE, THIS SKIN EFFECT GIVING BIRTH TO TYPE III CRYSTALLINE STRUCTURED SPHEROLITHES IN AN OUTER LAYER OF THIS TUBE, B. THIS TUBE IS BLOWN TO PRODUCE A BUBBLE 20 BIAXIALLY ORIENTED AND C. THIS BUBBLE IS APPLIED AND CUT TO PRODUCE THE TROUBLE FILM. APPLICATION TO CONDENSER MANUFACTURING.

FR7605531A 1975-02-28 1976-02-27 METHOD OF MANUFACTURING A TROUBLE FILM IN THERMOPLASTIC MATERIAL AND FILM THUS OBTAINED Granted FR2408449A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55407075A 1975-02-28 1975-02-28

Publications (2)

Publication Number Publication Date
FR2408449A1 true FR2408449A1 (en) 1979-06-08
FR2408449B1 FR2408449B1 (en) 1980-05-30

Family

ID=24211948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7605531A Granted FR2408449A1 (en) 1975-02-28 1976-02-27 METHOD OF MANUFACTURING A TROUBLE FILM IN THERMOPLASTIC MATERIAL AND FILM THUS OBTAINED

Country Status (7)

Country Link
JP (2) JPS6012217B2 (en)
CA (1) CA1053339A (en)
DE (2) DE2601810A1 (en)
FI (1) FI64534C (en)
FR (1) FR2408449A1 (en)
GB (2) GB1542671A (en)
IT (1) IT1055895B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185148A (en) * 1976-05-17 1980-01-22 Mitsubishi Rayon Company Limited Process for producing the polypropylene film for electrical appliances
JPS5337774A (en) * 1976-09-20 1978-04-07 Toray Industries Method of producing roughened polypropylene film
DE2851557C2 (en) * 1978-11-29 1982-04-01 Hoechst Ag, 6000 Frankfurt Biaxially stretched polypropylene composite film for use as an electrical insulating film
DE2942298C2 (en) * 1979-10-19 1985-06-13 Hoechst Ag, 6230 Frankfurt Process for the production of a rough polypropylene electrical insulation film
JPS56131921A (en) * 1980-03-19 1981-10-15 Sumitomo Chemical Co Oil-immersed electric device
EP0036457B1 (en) * 1980-03-20 1985-02-20 Mitsubishi Rayon Co., Ltd. A method of producing a polypropylene film for electrical appliances
JPS5750418A (en) * 1980-09-10 1982-03-24 Sumitomo Chemical Co Oil-immersed electric device
JPS59211908A (en) * 1983-05-17 1984-11-30 株式会社東芝 Oil-filled film capacitor
JPS63146937U (en) * 1987-03-18 1988-09-28
SG89427A1 (en) 2000-11-13 2002-06-18 Sumitomo Chemical Co Blown films and a method for producing the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1479973A (en) * 1966-05-16 1967-05-05 Conditionnement Et Ind Sa Process in particular for the extrusion of a non-slip plastic sheath, as well as the articles obtained from said sheath or similar sheath
US3430116A (en) * 1967-12-06 1969-02-25 Hercules Inc Electrical capacitors
DE1704796B1 (en) * 1967-05-10 1971-10-28 Lentia Gmbh PROCESS FOR THE PRODUCTION OF TUBE FILMS FROM POLYAETHYLENE
DE2027992A1 (en) * 1970-06-06 1971-12-16 Schlayer Polydress Gmbh Plastic tubular film - with roughened inner surfaces - preventing the sack sides from sticking together
US3822333A (en) * 1969-04-02 1974-07-02 Chisso Corp Process for producing shaped articles of crystalline polyolefins having a roughened surface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235632A (en) * 1962-04-18 1966-02-15 Dow Chemical Co Process for producing biaxially oriented thermoplastic tubular film
JPS4855253A (en) * 1971-11-12 1973-08-03
JPS494773A (en) * 1972-04-26 1974-01-16
JPS51636B2 (en) * 1972-05-01 1976-01-09
IT1009956B (en) * 1973-06-12 1976-12-20 Gen Electric IMPREGNATING LIQUID CONSISTING OF A STABILIZED ESTER

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1479973A (en) * 1966-05-16 1967-05-05 Conditionnement Et Ind Sa Process in particular for the extrusion of a non-slip plastic sheath, as well as the articles obtained from said sheath or similar sheath
DE1704796B1 (en) * 1967-05-10 1971-10-28 Lentia Gmbh PROCESS FOR THE PRODUCTION OF TUBE FILMS FROM POLYAETHYLENE
US3430116A (en) * 1967-12-06 1969-02-25 Hercules Inc Electrical capacitors
US3822333A (en) * 1969-04-02 1974-07-02 Chisso Corp Process for producing shaped articles of crystalline polyolefins having a roughened surface
DE2027992A1 (en) * 1970-06-06 1971-12-16 Schlayer Polydress Gmbh Plastic tubular film - with roughened inner surfaces - preventing the sack sides from sticking together

Also Published As

Publication number Publication date
FI760442A (en) 1976-08-29
JPS626977B2 (en) 1987-02-14
CA1053339A (en) 1979-04-24
GB1542671A (en) 1979-03-21
DE2660907C2 (en) 1989-09-07
JPS51109982A (en) 1976-09-29
JPS5772819A (en) 1982-05-07
FI64534C (en) 1983-12-12
DE2601810A1 (en) 1976-09-09
FR2408449B1 (en) 1980-05-30
DE2601810C2 (en) 1988-08-11
IT1055895B (en) 1982-01-11
JPS6012217B2 (en) 1985-03-30
GB1542672A (en) 1979-03-21
FI64534B (en) 1983-08-31

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