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2 032 643

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IPC

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Application

3043402/33, 1982-05-26

(22)

Actual filing date

1982-05-26

(45)

Published

1995-04-10

(72)

Inventor

Korolev A.Ja.Vinogradova L.M.Mukhanova E.E.Vostrikov M.N.Zuev I.I.Starykh A.B.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Aviatsionnykh Materialov

METHOD FOR HYDROPHOBIZATION OF POROUS HEAT INSULATING MATERIALS Russian patent published in 1995 - IPC

Abstract RU 2032643 C1

FIELD: aerospace engineering. SUBSTANCE: solution or aqueous emulsion of polymethylsiloxane oligomer having structural formula , ratio CH3/Si = 1,66 being 1.66 is applied on the surface of heat insulating material. Said material is allowed to stand within 60-70 min on open air, then heat treatment within 1.5-2 h at 200-400 C is carried out. Water absorption by immersion within 24 h is 2.0-6.2 %. EFFECT: improves efficiency of the method. 3 tbl

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RU 2 032 643 C1

Authors

Korolev A.Ja.

Vinogradova L.M.

Mukhanova E.E.

Vostrikov M.N.

Zuev I.I.

Starykh A.B.

Dates

1995-04-10—Published

1982-05-26—Filed

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