AT291404B - METHOD OF MANUFACTURING ELECTRETES - Google Patents

METHOD OF MANUFACTURING ELECTRETES

Info

Publication number
AT291404B
AT291404B AT979066A AT979066A AT291404B AT 291404 B AT291404 B AT 291404B AT 979066 A AT979066 A AT 979066A AT 979066 A AT979066 A AT 979066A AT 291404 B AT291404 B AT 291404B
Authority
AT
Austria
Prior art keywords
electretes
manufacturing
manufacturing electretes
Prior art date
Application number
AT979066A
Other languages
German (de)
Original Assignee
Philip Morris Inc
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 Philip Morris Inc filed Critical Philip Morris Inc
Application granted granted Critical
Publication of AT291404B publication Critical patent/AT291404B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
AT979066A 1965-10-23 1966-11-20 METHOD OF MANUFACTURING ELECTRETES AT291404B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50398365A 1965-10-23 1965-10-23

Publications (1)

Publication Number Publication Date
AT291404B true AT291404B (en) 1971-06-15

Family

ID=24004358

Family Applications (1)

Application Number Title Priority Date Filing Date
AT979066A AT291404B (en) 1965-10-23 1966-11-20 METHOD OF MANUFACTURING ELECTRETES

Country Status (7)

Country Link
AT (1) AT291404B (en)
BE (1) BE688615A (en)
CH (1) CH498479A (en)
ES (1) ES332637A2 (en)
GB (1) GB1135413A (en)
LU (1) LU52224A1 (en)
NL (1) NL6614505A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946112B2 (en) * 1975-12-29 1984-11-10 三菱油化株式会社 Atsudenzairiyo
NL7907539A (en) * 1979-10-11 1981-04-14 Tno METHOD FOR MANUFACTURING ELECTRETS

Also Published As

Publication number Publication date
BE688615A (en) 1967-03-31
LU52224A1 (en) 1966-12-21
GB1135413A (en) 1968-12-04
NL6614505A (en) 1967-04-24
ES332637A2 (en) 1967-12-01
CH498479A (en) 1970-10-31

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee