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2 131 351

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IPC

(21) (22)

Application

97118641/04, 1997-11-19

(22)

Actual filing date

1997-11-19

(45)

Published

1999-06-10

(72)

Inventor

Tkachenko V.I.Kantseljarist D.V.Shamaev O.A.Shamaev V.A.Suranov V.F.Oblonskij E.V.Kantseljarist V.V.

(73)

Holder

Oblonskij Evgenij VladimirovichShamaev Vladimir Aleksandrovich

MODIFIED WOOD MANUFACTURE METHOD Russian patent published in 1999 - IPC

Abstract RU 2131351 C1

FIELD: wood-working industry, in particular, production of wood bars from low-value trees with predetermined qualities. SUBSTANCE: method involves impregnating wood with carbamide solution containing urotropin in an amount of 6-10% by weight of dried carbamide, with pH value of solution being within the range of 6.4-6.5, with following drying under pressure and at temperature of 90-120 C. Method allows wood with volumetric swelling rate not in excess of 25% to be obtained. EFFECT: simplified method, increased efficiency and improved quality of wood bars. 1 dwg, 2 ex

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RU 2 131 351 C1

Authors

Tkachenko V.I.

Kantseljarist D.V.

Shamaev O.A.

Shamaev V.A.

Suranov V.F.

Oblonskij E.V.

Kantseljarist V.V.

Dates

1999-06-10—Published

1997-11-19—Filed