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2 085 256

(13)

C1

(51)

IPC

(21) (22)

Application

92009667/25, 1992-12-04

(22)

Actual filing date

1992-12-04

(45)

Published

1997-07-27

(72)

Inventor

Geller Boris Ehmanuilovich[By]Chirtulov Vladlen Gavrilovich[By]Semenov Vladimir Pavlovich[By]

(73)

Holder

Mogilevskoe Proizvodstvennoe Ob"Edinenie Im.V.I.Lenina

FILTER MATERIAL FOR HIGH-VISCOSITY MELTS OF POLYMERS Russian patent published in 1997 - IPC

Abstract RU 2085256 C1

FIELD: filtration technics. SUBSTANCE: filter material is made of nonwoven carbon-fiber material with diameter of elementary fibers 8-12 mcm, surface density 0.1-0.5 kg/sq. m, thickness 5-7 mm, and air permeability 200-250 cu.dm/(cu.cm s). EFFECT: improved filtration efficiency. 1 dwg

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RU 2 085 256 C1

Authors

Geller Boris Ehmanuilovich[By]

Chirtulov Vladlen Gavrilovich[By]

Semenov Vladimir Pavlovich[By]

Dates

1997-07-27—Published

1992-12-04—Filed

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