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Application

3867214/05, 1984-12-14

(22)

Actual filing date

1984-12-14

(45)

Published

1994-08-30

(72)

Inventor

Tukums P.S.Silis U.K.Stirna U.K.Alksnis A.F.Sevast'Janova I.V.Jakushin V.A.Sal'Tsevich G.S.

PROCESS FOR PREPARING ISOCYANURATE URETHAN FOAM PLASTICS Russian patent published in 1994 - IPC

Abstract SU 1286603 A1

FIELD: thermoinsulating materials. SUBSTANCE: the invention makes it possible to prepare foam plastics having a open-pore (89-95% open pores) structure, low conventional friability (42-49%) and high fire resistance (the weight loss is 8-17% and the combustion time is 0-0.5 s) due to the condensation of polyisocyanate with a product of reaction of tall oil, triethanolamine and potassium hydroxide having a hydroxy number of 300-670 mg KOH/g, a potassium content of 1.2-6.0 wt %, the free ethanolamine to potassium weight ratio being 4-10:1. EFFECT: improved properties of the composition. 2 tbl

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SU 1 286 603 A1

Authors

Tukums P.S.

Silis U.K.

Stirna U.K.

Alksnis A.F.

Sevast'Janova I.V.

Jakushin V.A.

Sal'Tsevich G.S.

Dates

1994-08-30—Published

1984-12-14—Filed

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