JPS6444010A - Manufacture of laminated board for electret - Google Patents

Manufacture of laminated board for electret

Info

Publication number
JPS6444010A
JPS6444010A JP62202493A JP20249387A JPS6444010A JP S6444010 A JPS6444010 A JP S6444010A JP 62202493 A JP62202493 A JP 62202493A JP 20249387 A JP20249387 A JP 20249387A JP S6444010 A JPS6444010 A JP S6444010A
Authority
JP
Japan
Prior art keywords
electret
roll
heating
metallic sheet
thermosetting resin
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
JP62202493A
Other languages
Japanese (ja)
Other versions
JPH0748451B2 (en
Inventor
Tomoari Sato
Kunihiko Hori
Tatsuo Tateno
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP62202493A priority Critical patent/JPH0748451B2/en
Publication of JPS6444010A publication Critical patent/JPS6444010A/en
Publication of JPH0748451B2 publication Critical patent/JPH0748451B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

PURPOSE:To obtain laminated plate for electret, in which a film is homogeneous and assures excellent smoothness of the surface, by indirectly beating a thermosetting resin film which can form an electret while heating is made only from the side of metallic sheet using a pressurizing roll and momentarily pressurizing the metallic sheet. CONSTITUTION:A metallic sheet is supplied to the side of heating roll of the pressurizing roll consisting of a pair of heating roll and a roll having no heating source and a thermosetting resin film which forms an electlet is supplied to the side of the roll having no heating source. These sheet and film are thermally pressurized in contact while the contact time of metallic sheet, thermosetting resin film and roll is controlled to 1-10 seconds and contact belt width to 1-20mm. The layered plate for electret is cut in the desired length, it is then charged in polarization (electret) by corona discharging method and the aging is carried out to form a completed electret. Thereby, the layered plate for electret having uniformity, excellent smoothness and excellent characteristic can be obtained.
JP62202493A 1987-08-12 1987-08-12 Method for manufacturing laminated plate for electret Expired - Lifetime JPH0748451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62202493A JPH0748451B2 (en) 1987-08-12 1987-08-12 Method for manufacturing laminated plate for electret

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62202493A JPH0748451B2 (en) 1987-08-12 1987-08-12 Method for manufacturing laminated plate for electret

Publications (2)

Publication Number Publication Date
JPS6444010A true JPS6444010A (en) 1989-02-16
JPH0748451B2 JPH0748451B2 (en) 1995-05-24

Family

ID=16458406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62202493A Expired - Lifetime JPH0748451B2 (en) 1987-08-12 1987-08-12 Method for manufacturing laminated plate for electret

Country Status (1)

Country Link
JP (1) JPH0748451B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776918B1 (en) 1999-04-08 2004-08-17 Showa Co., Ltd. Titanium composite material
WO2006000402A1 (en) * 2004-06-25 2006-01-05 Sennheiser Electronic Gmbh & Co. Kg Electro-acoustic back electret transducer
WO2010119869A1 (en) 2009-04-14 2010-10-21 日東電工株式会社 Process for production of electret material
KR20120011837A (en) 2009-04-27 2012-02-08 닛토덴코 가부시키가이샤 Electret material and electrostatic-type acoustic transducer
EP2437519A1 (en) 2003-07-22 2012-04-04 Toho Kasei Co., Ltd. Heat resistant electret material and heat resistant electret
JP2013031164A (en) * 2011-06-24 2013-02-07 Toho Kasei Kk Small acoustic sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4627676B2 (en) * 2005-03-31 2011-02-09 シチズン電子株式会社 An electret condenser microphone using a heat-resistant charged resin body and a manufacturing method thereof.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057799A (en) * 1983-09-08 1985-04-03 Victor Co Of Japan Ltd Speaker diaphragm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057799A (en) * 1983-09-08 1985-04-03 Victor Co Of Japan Ltd Speaker diaphragm

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6776918B1 (en) 1999-04-08 2004-08-17 Showa Co., Ltd. Titanium composite material
EP2437519A1 (en) 2003-07-22 2012-04-04 Toho Kasei Co., Ltd. Heat resistant electret material and heat resistant electret
WO2006000402A1 (en) * 2004-06-25 2006-01-05 Sennheiser Electronic Gmbh & Co. Kg Electro-acoustic back electret transducer
WO2010119869A1 (en) 2009-04-14 2010-10-21 日東電工株式会社 Process for production of electret material
US8747961B2 (en) 2009-04-14 2014-06-10 Nitto Denko Corporation Process for production of electret material
KR20120011837A (en) 2009-04-27 2012-02-08 닛토덴코 가부시키가이샤 Electret material and electrostatic-type acoustic transducer
US8971553B2 (en) 2009-04-27 2015-03-03 Nitto Denko Corporation Electret material and electrostatic-type acoustic transducer
JP2013031164A (en) * 2011-06-24 2013-02-07 Toho Kasei Kk Small acoustic sensor

Also Published As

Publication number Publication date
JPH0748451B2 (en) 1995-05-24

Similar Documents

Publication Publication Date Title
US4285744A (en) Process for the reproduction of oil paintings or similarly textured images
MY100774A (en) Process for producing metal-laminated base material for printed circuit boards.
GB814739A (en) Production of laminated structures
JPS6461224A (en) Laminated foam product
JPS6444010A (en) Manufacture of laminated board for electret
US2550366A (en) Method and apparatus for electroperforating sheet material
GB1534676A (en) Process and apparatus for the production of laminated sheets
IE810140L (en) Abrasion resistant sheet.
JPS56123668A (en) Manufacture of electrode plate for alkaline battery
JPH0517012B2 (en)
GB576097A (en) Improvements in methods and apparatus for subjecting materials to high-frequency electrical oscillations
JPS5713802A (en) Elastic surface wave oscillator
JPS6226659B2 (en)
JPH028745Y2 (en)
JPS5669914A (en) Frequency adjusting method for thickness sliding quartz oscillator
JPS57159670A (en) Adhering method
JPH03272848A (en) Continuous manufacture of laminate for electrical use
JPS6151343A (en) Continuous manufacture of laminated board
JPH08142184A (en) Manufacture of resin sheet
JPS56113438A (en) Continuous production of foamed synthetic resin plate with facing
GB985823A (en) Honeycomb materials
GB827810A (en) Method and apparatus for producing a strip from a block of resilient material
JPS57180187A (en) Manufacture of piezoelectric vibrator
JPS56102193A (en) Production of honey-comb diaphragm
GB1348424A (en) Continuous process for producing laminated plates

Legal Events

Date Code Title Description
S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080524

Year of fee payment: 13