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2 054 429

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C1

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IPC

(21) (22)

Application

5048319/04, 1992-05-19

(22)

Actual filing date

1992-05-19

(45)

Published

1996-02-20

(72)

Inventor

Tul'Chinskij Eh.A.Kiper A.I.Dykman A.S.Fedortsova E.V.Idlis G.S.Maksimenko N.A.Zinenkov A.V.Gil'Mutdinov G.Z.

(73)

Holder

Dykman Arkadij Samuilovich

METHOD FOR PRODUCTION OF ANTISEPTIC AGENT FOR PROTECTION OF WOOD Russian patent published in 1996 - IPC

Abstract RU 2054429 C1

FIELD: organic chemistry. SUBSTANCE: desired product is boron-containing antiseptic agent of the base of polyhydric alcohol. Aqueous solution of boric acid is used as reagent 1, side products of synthesis of 4,4-dimethyldioxane-1,3 with high boiling point being used as reagent 2. Reaction is carried out at 140-160 C and pressure 4-6 atm in the presence of 0.05-0.1 mass % of oxalic, formic or phosphoric acid, thus produced reaction water and formaldehyde being uninterruptedly distilled. EFFECT: improves efficiency of method. 3 tbl

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RU 2 054 429 C1

Authors

Tul'Chinskij Eh.A.

Kiper A.I.

Dykman A.S.

Fedortsova E.V.

Idlis G.S.

Maksimenko N.A.

Zinenkov A.V.

Gil'Mutdinov G.Z.

Dates

1996-02-20—Published

1992-05-19—Filed

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