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2 812 339

(13)

(51)

IPC

H01G7/02(2006-01-01)

B82B3/00(2006-01-01)

(21) (22)

Application

2023118744, 2023-07-16

(24)

Start date

2023-07-16

(22)

Actual filing date

2023-07-16

(45)

Published

2024-01-30

(72)

Inventor

Novozhilova Elena AnatolevnaKorsakova Kseniya AndreevnaMalygin Anatolij AlekseevichKuznetsov Aleksej Evgenevich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Tekhnologicheskij Institut Universitet)"

METHOD FOR MANUFACTURING ELECTRET MATERIAL Russian patent published in 2024 - IPC H01G7/02 B82B3/00

Abstract RU 2812339 C1

FIELD: electret materials and products.

SUBSTANCE: it can be used in the production of electret microphones, filters for purifying gases and liquids, etc. The method of producing electret material involves treating a polytetrafluoroethylene film with chromium dioxide dichloride (CrO₂Cl₂) vapor, dried carrier gas, water vapor and again dried carrier gas. Then the resulting film is electrified in a corona discharge with the formation of chromium oxide structures on its surface.

EFFECT: improved thermal stability of the charge.

5 cl, 2 dwg

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RU 2 812 339 C1

Authors

Novozhilova Elena Anatolevna

Korsakova Kseniya Andreevna

Malygin Anatolij Alekseevich

Kuznetsov Aleksej Evgenevich

Dates

2024-01-30—Published

2023-07-16—Filed