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2 130 828

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Application

98105547/13, 1998-03-20

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Actual filing date

1998-03-20

(45)

Published

1999-05-27

(72)

Inventor

Balakin M.I.Birjukov V.G.Mishkov S.N.Sobolev A.V.

(73)

Holder

Moskovskij Gosudarstvennyj Universitet Lesa

METHOD OF PRODUCING FIREPROOF PLYWOOD Russian patent published in 1999 - IPC

Abstract RU 2130828 C1

FIELD: wood-working industry. SUBSTANCE: birch veneer is impregnated with solution of fireproofing compound, for instance, diammonium phosphate up to absorption by veneer of dry salt in the amount of 20-25%. Impregnated veneer is dried to moisture content of 8 ± 2%. Then pack is assembled and binding agent, for instance, resin SFZh-3014 is applied to even-numbered veneer sheets and subjected to hot pressing. Upon completion of pressing process, sheets of fireproof plywood are arranged at intervals for process ageing. EFFECT: higher quality of fireproof plywood due to improved decorative and adhesion properties of its surface.

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RU 2 130 828 C1

Authors

Balakin M.I.

Birjukov V.G.

Mishkov S.N.

Sobolev A.V.

Dates

1999-05-27—Published

1998-03-20—Filed

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