SORPTION MATERIAL FOR REMOVING PETROLEUM PRODUCT IMPURITIES Russian patent published in 1999 - IPC

Abstract RU 2139959 C1

FIELD: oil pollution removal. SUBSTANCE: material has two outside fibrous layers preliminarily fastened by needle punching and intermediate layer of synthetic fibers between outside layers. All three layers are fastened together by needle punching. According to invention, outside layers are made from polypropylene fibers and intermediate layer from polypropylene or polyester fibers, outside layers being denser than intermediate layer. EFFECT: enabled retention of petroleum products and repeated utilization. 4 cl, 1 dwg

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RU 2 139 959 C1

Authors

Bachernikova S.G.

Mikhal'Kova A.I.

Esenkova N.P.

Dates

1999-10-20—Published

1998-04-20—Filed