FR2406880A1 - PROCESS FOR POLARIZING A THERMOPLASTIC FILM - Google Patents

PROCESS FOR POLARIZING A THERMOPLASTIC FILM

Info

Publication number
FR2406880A1
FR2406880A1 FR7829679A FR7829679A FR2406880A1 FR 2406880 A1 FR2406880 A1 FR 2406880A1 FR 7829679 A FR7829679 A FR 7829679A FR 7829679 A FR7829679 A FR 7829679A FR 2406880 A1 FR2406880 A1 FR 2406880A1
Authority
FR
France
Prior art keywords
film
polarizing
electrode
thermoplastic film
polarization
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.)
Withdrawn
Application number
FR7829679A
Other languages
French (fr)
Inventor
Tohru Sasaki
Syuuzi Terasaki
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of FR2406880A1 publication Critical patent/FR2406880A1/en
Withdrawn legal-status Critical Current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
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
    • H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/09—Forming piezoelectric or electrostrictive materials
    • H10N30/098—Forming organic materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/857—Macromolecular compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Organic Insulating Materials (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

Procédé de polarisation dans lequel les pertes de polarisation sous l'action d'un champ électrique de haute tension sont réduites. Une électrode pelliculaire 2 est formée en déposant une couche d'or, d'argent, d'aluminium, de nickel ou d'étain sur l'une des faces de la pellicule 1 par un procédé d'évaporation sous vide, de placage, d'impression ou par tout autre procédé approprié. Une pellicule 3, faite d'une matière ayant une meilleure conductivité électrique que la pellicule 1 est appliquée sur la face de la pellicule 1 qui est à l'opposé de l'électrode 2. Application à la production d'électrets, d'éléments piézo-électriques et d'éléments pyro-électriques d'excellente qualité.A method of polarization in which the polarization losses under the action of a high voltage electric field are reduced. A film electrode 2 is formed by depositing a layer of gold, silver, aluminum, nickel or tin on one side of the film 1 by a process of vacuum evaporation, plating, printing or any other suitable process. A film 3, made of a material having a better electrical conductivity than the film 1 is applied to the side of the film 1 which is opposite to the electrode 2. Application to the production of electrets, elements piezoelectric and pyroelectric elements of excellent quality.

FR7829679A 1977-10-19 1978-10-18 PROCESS FOR POLARIZING A THERMOPLASTIC FILM Withdrawn FR2406880A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52124600A JPS6051279B2 (en) 1977-10-19 1977-10-19 Method for polarizing thermoplastic resin piezoelectric pyroelectric film

Publications (1)

Publication Number Publication Date
FR2406880A1 true FR2406880A1 (en) 1979-05-18

Family

ID=14889450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829679A Withdrawn FR2406880A1 (en) 1977-10-19 1978-10-18 PROCESS FOR POLARIZING A THERMOPLASTIC FILM

Country Status (5)

Country Link
JP (1) JPS6051279B2 (en)
DE (1) DE2845255A1 (en)
FR (1) FR2406880A1 (en)
GB (1) GB2007022A (en)
NL (1) NL7810441A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421191A1 (en) * 1978-03-31 1979-10-26 Kureha Chemical Ind Co Ltd POLYVINYLIDENE FLUORIDE FILM HAVING SUPERIOR DIELECTRIC STRENGTH AND PROCESS FOR ITS PREPARATION
EP0119706A2 (en) * 1983-02-14 1984-09-26 AT&T Corp. Improved polarizing of material
FR2700220A1 (en) * 1993-01-06 1994-07-08 Saint Louis Inst Method for polarizing at least one zone of a sheet of ferroelectric material, and method for producing a polarized element for piezoelectric or pyroelectric sensor.

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079056B (en) * 1980-06-30 1985-04-17 Tokyo Shibaura Electric Co Electret device
US4365283A (en) * 1980-10-16 1982-12-21 Pennwalt Corporation Corona discharge poling process
JPS57188105A (en) * 1981-05-14 1982-11-19 Toshiba Corp Electret constituent
CH659908A5 (en) * 1982-05-26 1987-02-27 Bbc Brown Boveri & Cie METHOD FOR INCREASING THE ELECTRICAL SURFACE CONDUCTIVITY OF A BODY.
JPS60173797A (en) * 1984-02-13 1985-09-07 Nippon Telegr & Teleph Corp <Ntt> Superconduction storage circuit
JPS6285770A (en) * 1985-10-11 1987-04-20 Oi Seisakusho Co Ltd Spoiler device for automobile
JPS6323474U (en) * 1986-07-30 1988-02-16
US6561236B1 (en) 2000-03-08 2003-05-13 Sealed Air Corporation (Us) Inflatable packing and inflation apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2146856A5 (en) * 1971-07-20 1973-03-02 Kureha Chemical Ind Co Ltd
FR2266276A1 (en) * 1974-03-25 1975-10-24 Philips Nv
US3943614A (en) * 1973-07-17 1976-03-16 Kureha Kagaku Kogyo Kabushiki Kaisha Method of polarizing high molecular weight films

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2146856A5 (en) * 1971-07-20 1973-03-02 Kureha Chemical Ind Co Ltd
US3943614A (en) * 1973-07-17 1976-03-16 Kureha Kagaku Kogyo Kabushiki Kaisha Method of polarizing high molecular weight films
FR2266276A1 (en) * 1974-03-25 1975-10-24 Philips Nv

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421191A1 (en) * 1978-03-31 1979-10-26 Kureha Chemical Ind Co Ltd POLYVINYLIDENE FLUORIDE FILM HAVING SUPERIOR DIELECTRIC STRENGTH AND PROCESS FOR ITS PREPARATION
EP0119706A2 (en) * 1983-02-14 1984-09-26 AT&T Corp. Improved polarizing of material
EP0119706A3 (en) * 1983-02-14 1985-09-18 American Telephone And Telegraph Company Improved polarizing of material
FR2700220A1 (en) * 1993-01-06 1994-07-08 Saint Louis Inst Method for polarizing at least one zone of a sheet of ferroelectric material, and method for producing a polarized element for piezoelectric or pyroelectric sensor.

Also Published As

Publication number Publication date
NL7810441A (en) 1979-04-23
JPS5458774A (en) 1979-05-11
JPS6051279B2 (en) 1985-11-13
DE2845255A1 (en) 1979-04-26
GB2007022A (en) 1979-05-10

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