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2 049 673

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C1

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IPC

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Application

94018538/15, 1994-05-20

(22)

Actual filing date

1994-05-20

(45)

Published

1995-12-10

(72)

Inventor

Kirillov A.N.Birjukov V.G.Sobolev A.V.Makhan V.V.Ryzhikov V.V.

(73)

Holder

Moskovskij Gosudarstvennyj Universitet Lesa

COMPOSITE LAMINATED WOOD MATERIAL Russian patent published in 1995 - IPC

Abstract RU 2049673 C1

FIELD: wood-working. SUBSTANCE: for manufacture of composite laminated wood material use is made of sheets of fireproof (impregnated) and ordinary birch veneer. Film-forming adhesive based on phenol-formaldehyde resin (Bakelite film) or liquid resin CФЖ 3013 of CФЖ 3014 is used as adhesive plies. Consumption of liquid resin is 115 to 120 g/sq.m. Fireproof veneer in aqueous solution of diammonium phosphate, the stack is assembled in such a way that a ply of Bakelite film or ply of liquid resin is positioned between two adjacent sheets of veneer. The inner plies of the stack are formed of sheets of non-impregnated veneer and adhesive plies between them, and fireproof veneer is used on the external sides of the stark (front or front and reverse ones). At least two adhesive plies are laid on the stack front side on the fireproof veneer, the external ply being made of Bakelite film. One or several adhesive plies are laid on the reverse side of the stack, for example, on the fireproof veneer; both Bakelite film and liquid resin are used for the purpose. Then hot moulding of the stack is accomplished. To obtain bent-glued composite material, shaped moulding is accomplished to obtain a preset shape of products. EFFECT: improved quality. 10 cl, 1 tbl

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RU 2 049 673 C1

Authors

Kirillov A.N.

Birjukov V.G.

Sobolev A.V.

Makhan V.V.

Ryzhikov V.V.

Dates

1995-12-10—Published

1994-05-20—Filed

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