FIELD: chemistry.
SUBSTANCE: material includes two external layers, consisting of polyester fibres and biocomponent polyester fibres, and intermediate layer, consisting of polypropylene fibres. Volume density of external layers constitute 8-20 kg/m3, fibre diameter is 20-30 mcm, volume density of intermediate layer constitutes 45-60 kg/m3, fibre diameter 5-18 mcm. Layers are thermally fastened together.
EFFECT: increase of capacity in oil and oil products, buoyancy and retaining capacity.
2 ex
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