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2 114 870

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Application

97111537/04, 1997-07-17

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Actual filing date

1997-07-17

(45)

Published

1998-07-10

(72)

Inventor

Gerasimenja V.P.Sobolev L.A.Ovcharov V.N.Glebychev B.S.Rjabev V.S.Poleshchuk O.F.Gumargalieva K.Z.Solov'Ev A.G.Anisimov D.G.

(73)

Holder

Gerasimenja Valerij PavlovichSobolev Leonid Aleksandrovich

UREA-FORMALDEHYDE RESIN PRODUCTION PROCESS Russian patent published in 1998 - IPC

Abstract RU 2114870 C1

FIELD: polymer production. SUBSTANCE: resin is produced by urea-formaldehyde condensation in a medium with variable acidity under heating. Then, polyatomic alcohol is added, vacuum drying is effected followed by after-condensation and addition of hydroxyl-containing polymer in the form of aqueous solution. After-condensation is conducted stepwise. EFFECT: improved physico-chemical characteristics of products manufactured from the resin and reduced formaldehyde emission in manufacturing procedure. 2 cl, 1 tbl

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RU 2 114 870 C1

Authors

Gerasimenja V.P.

Sobolev L.A.

Ovcharov V.N.

Glebychev B.S.

Rjabev V.S.

Poleshchuk O.F.

Gumargalieva K.Z.

Solov'Ev A.G.

Anisimov D.G.

Dates

1998-07-10—Published

1997-07-17—Filed