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2 015 879

(13)

C1

(51)

IPC

(21) (22)

Application

93005429/15, 1993-02-01

(22)

Actual filing date

1993-02-01

(45)

Published

1994-07-15

(72)

Inventor

Kirillov A.N.Birjukov V.G.Mishin I.N.

(73)

Holder

Moskovskij Lesotekhnicheskij Institut

METHOD FOR PRODUCTION OF VIBRATION-ABSORBING PLYWOOD Russian patent published in 1994 - IPC

Abstract RU 2015879 C1

FIELD: wood and wood-working industries. SUBSTANCE: vibration-absorbing plywood, e.g., with fire-proof characteristics, is produced of eight sheets of birch veneers 1.5 mm thick impregnated with diammonium phosphate to absorb 25-30%, nonvulcanized boards 3.0-3.5 mm thick and phenol-phormaldehyde rasin. Pack is formed of four sheets of veneer on each side of interlayer, two central sheets of veneer in center of wood part from each side of vibration-absorbing interlayers are parallel to each other, and adjacent veneer sheets are arranged perpendicular. Resin is applied to odd veneer sheets with consumption rate of 120 g/sq.m. Cold prepressing and hot pressing are employed. EFFECT: higher efficiency.

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RU 2 015 879 C1

Authors

Kirillov A.N.

Birjukov V.G.

Mishin I.N.

Dates

1994-07-15—Published

1993-02-01—Filed

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