FR2391536A1 - Electrolytic capacitor paper prodn. - from esparto pulp opt. mixed with other pulp, giving good impedance, short circuit behaviour and tensile strength - Google Patents

Electrolytic capacitor paper prodn. - from esparto pulp opt. mixed with other pulp, giving good impedance, short circuit behaviour and tensile strength

Info

Publication number
FR2391536A1
FR2391536A1 FR7800954A FR7800954A FR2391536A1 FR 2391536 A1 FR2391536 A1 FR 2391536A1 FR 7800954 A FR7800954 A FR 7800954A FR 7800954 A FR7800954 A FR 7800954A FR 2391536 A1 FR2391536 A1 FR 2391536A1
Authority
FR
France
Prior art keywords
pulp
esparto
hemp
tensile strength
short circuit
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
FR7800954A
Other languages
French (fr)
Other versions
FR2391536B1 (en
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.)
NIPPON KODOSHI PAPER
Original Assignee
NIPPON KODOSHI PAPER
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 NIPPON KODOSHI PAPER filed Critical NIPPON KODOSHI PAPER
Publication of FR2391536A1 publication Critical patent/FR2391536A1/en
Application granted granted Critical
Publication of FR2391536B1 publication Critical patent/FR2391536B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/02—Diaphragms; Separators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Paper (AREA)

Abstract

The paper is produced in the form of a (thin) sheet from an esparto (Stipa tenacissima) pulp mixed with another pulp in a ratio of 9-95 wt. %, the esparto pulp having fibres of small dia. and approx. circular cross-section. The other pulp can be manilla hemp (Musa textilis), wood, flax, (Linum usitalissiumum), hemp (Cannabis sativa), 'Benares' hemp, gampi (Wikstroemia sikokiana) bast fibre, kozo (Broussonetia kazinoki) bast fibre, mitsumata (Edgeworthia papyrifera) bast fibre or bamboo pulp. Esparto grass fibres have a certain stiffness and give a finer paper than manilla hemp, with good impedance characteristics and better properties w.r.t. damage by short circuits. The other pulp improves the tensile strength. In an example, paper produced from 60% esparto pulp + 40% manilla hemp pulp (100% manilla hemp pulp), with a thickness of 51.5 (51.0) mu m and density of 0.413 (0.425) g./cm3, had a tensile strength of 2.2 (3.0) kg./15 mm. width, impedance at -40 degrees C. and 10 kHz of 10.9 (12.0) and short circuit damage of 0.3 (0.8)%.
FR7800954A 1977-05-17 1978-01-13 Electrolytic capacitor paper prodn. - from esparto pulp opt. mixed with other pulp, giving good impedance, short circuit behaviour and tensile strength Granted FR2391536A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5748477A JPS53142652A (en) 1977-05-17 1977-05-17 Paper for electrolytic capacitor

Publications (2)

Publication Number Publication Date
FR2391536A1 true FR2391536A1 (en) 1978-12-15
FR2391536B1 FR2391536B1 (en) 1981-10-16

Family

ID=13056976

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800954A Granted FR2391536A1 (en) 1977-05-17 1978-01-13 Electrolytic capacitor paper prodn. - from esparto pulp opt. mixed with other pulp, giving good impedance, short circuit behaviour and tensile strength

Country Status (3)

Country Link
JP (1) JPS53142652A (en)
DE (1) DE2806932C2 (en)
FR (1) FR2391536A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672153A1 (en) * 1991-01-28 1992-07-31 Bollore Technologies SEPARATOR FOR ELECTROLYTIC CAPACITORS AND CAPACITORS THEREOF.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0435013A (en) * 1990-05-31 1992-02-05 Sanyo Electric Co Ltd Organic semiconductor solid electrolytic capacitor
JPH08250376A (en) * 1995-03-07 1996-09-27 Matsushita Electric Ind Co Ltd Aluminum electrolytic capacitor
JP6412805B2 (en) 2015-01-16 2018-10-24 ニッポン高度紙工業株式会社 Separator and aluminum electrolytic capacitor
JP7333694B2 (en) 2019-01-16 2023-08-25 ニッポン高度紙工業株式会社 Separator for aluminum electrolytic capacitor and aluminum electrolytic capacitor
JP2022012525A (en) 2020-07-01 2022-01-17 ニッポン高度紙工業株式会社 Separator for aluminum electrolytic capacitor, and aluminum electrolytic capacitor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR973607A (en) * 1941-10-10 1951-02-13 Process for treating cellulosic materials such as wood, straw, alfa, with a view to obtaining various industrial products
FR1144360A (en) * 1955-02-28 1957-10-11 British Insulated Callenders Improvements to an electrically insulating material
DE1546428A1 (en) * 1964-09-14 1969-07-24 Papierfabrik Moufang W U J Mou Process for the production of low-dielectric-loss paper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850702A (en) * 1930-01-25 1932-03-22 Gen Electric Paper suitable for capacitors and process of making the same
DE567059C (en) * 1931-05-22 1932-12-27 Oscar Legg Rotatable sieve drum for sifting the tobacco from separated reject cigarettes
NL42926C (en) * 1934-11-22
DE764439C (en) * 1939-01-24 1954-05-03 Schoeller & Hoesch Process for making electrolytic capacitor paper
JPS498752A (en) * 1972-05-25 1974-01-25
JPS5123660A (en) * 1974-08-22 1976-02-25 Mitsubishi Rayon Co
JPS52366A (en) * 1975-06-23 1977-01-05 Nitsupon Koudoshi Kougiyou Kk Electrolytic capacitor paper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR973607A (en) * 1941-10-10 1951-02-13 Process for treating cellulosic materials such as wood, straw, alfa, with a view to obtaining various industrial products
FR1144360A (en) * 1955-02-28 1957-10-11 British Insulated Callenders Improvements to an electrically insulating material
DE1546428A1 (en) * 1964-09-14 1969-07-24 Papierfabrik Moufang W U J Mou Process for the production of low-dielectric-loss paper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672153A1 (en) * 1991-01-28 1992-07-31 Bollore Technologies SEPARATOR FOR ELECTROLYTIC CAPACITORS AND CAPACITORS THEREOF.
EP0497676A1 (en) * 1991-01-28 1992-08-05 Bollore Technologies Spacer for electrolytic capacitors and capacitors formed thereby
US5157586A (en) * 1991-01-28 1992-10-20 Bollore Technologies Separator for electrolytic capacitors, and capacitors made therewith

Also Published As

Publication number Publication date
DE2806932C2 (en) 1982-07-01
FR2391536B1 (en) 1981-10-16
DE2806932A1 (en) 1978-11-23
JPS6145372B2 (en) 1986-10-07
JPS53142652A (en) 1978-12-12

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Legal Events

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