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2 140 943

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C1

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Application

97108186/04, 1997-05-22

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Start date

1997-05-22

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Actual filing date

1997-05-22

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Published

1999-11-10

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Inventor

Rakhmanov V.A.Melikhov V.I.Kazarin S.K.Levin L.I.Velichko E.G.Devjatov V.V.Sokolov V.A.Kozlovskij A.I.

(73)

Holder

Vserossijskij Federal'Nyj Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Tekhnologicheskij Institut Stroitel'Noj Industrii

COMPOSITION FOR PREPARATION OF HEAT-INSULATING MATERIAL Russian patent published in 1999 - IPC

Abstract RU 2140943 C1

FIELD: chemical industry. SUBSTANCE: described is composition for preparation of heat-insulating materials which comprises urea-formaldehyde resin, acid hardener, surfactant, chemical detoxicant and water and further comprises filler, and chemical detoxicant includes compounds selected from group consisting of industrial lignosulfonates, mixture of polyvinyl alcohol and hydrochloric acid triethanolamine at weight ratio thereof of 1:(0.1-0.33), sulfite-yeast/ratios of components being as follows, wt %; urea-formaldehyde resin, 45-75; acid hardener, 1.0-2.5; filler, 0.2-10; surfactant, 1.2-2.7; chemical detoxicant, 3.3-5.8; and the water balance. Method makes it possible to prepare ecologically safe heat-insulating material having strength and heat protecting properties, and smaller bulk weight of final products. 4 cl, 8 ex, 2 tbl. EFFECT: improved properties of the composition.

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RU 2 140 943 C1

Authors

Rakhmanov V.A.

Melikhov V.I.

Kazarin S.K.

Levin L.I.

Velichko E.G.

Devjatov V.V.

Sokolov V.A.

Kozlovskij A.I.

Dates

1999-11-10—Published

1997-05-22—Filed

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