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2 034 858

(13)

C1

(51)

IPC

(21) (22)

Application

4813802/05, 1990-04-13

(22)

Actual filing date

1990-04-13

(45)

Published

1995-05-10

(72)

Inventor

Dreval' Ju.K.Gutnik S.B.Moldavskij D.D.Bispen T.A.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD OF PREPARING OF ISOCYANURATOURETHAN FOAM PLASTIC Russian patent published in 1995 - IPC

Abstract RU 2034858 C1

FIELD: insulating materials. SUBSTANCE: isocyanouratourethan foam plastic is prepared by mixing of tall oil interaction product with triethanolamine with molecular mass 270-480 at OH-group content 7-17% with polyisocyanate excess following by frothing. Perfluorinated amines or perfluorinated hydrocarbons (boiling point is 20-78 C) were used as frothing agent. Method is performed in the presence of trimerization catalyst and surface-active substance. EFFECT: improved method of foam plastic preparing. 1 tbl

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RU 2 034 858 C1

Authors

Dreval' Ju.K.

Gutnik S.B.

Moldavskij D.D.

Bispen T.A.

Dates

1995-05-10—Published

1990-04-13—Filed

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