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2 057 097

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IPC

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Application

93009956/04, 1993-02-26

(22)

Actual filing date

1993-02-26

(45)

Published

1996-03-27

(72)

Inventor

Varvarskij V.S.Kovyljanskij Ja.A.Umerkin G.Kh.Rojtshtejn L.I.Balycheva L.N.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Ob"Edinenie

FOAMPOLYMERIC COMPOUND Russian patent published in 1996 - IPC

Abstract RU 2057097 C1

FIELD: heat insulation and water-proofing of steel pipes. SUBSTANCE: foampolymeric compound uses, mass percent: polyisocyanite - 100; diethylene glycol containing sorbed water - 30 to 45; triethanolamine - 1 to 1.9; silicone liquid - 1 to 1.4; acetone - 10 to 15; mineral filler - 100 to 170. Material samples have a volume mass of 350 to 500 kg/qu.m, water absorption - 1.3 to 1.7 for 24 h at 20 C and water vapor permeability factor - 0.049 to 0.060 mg/mhPa. EFFECT: enhanced reliability. 2 tbl

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RU 2 057 097 C1

Authors

Varvarskij V.S.

Kovyljanskij Ja.A.

Umerkin G.Kh.

Rojtshtejn L.I.

Balycheva L.N.

Dates

1996-03-27—Published

1993-02-26—Filed

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