| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to novel composite, including non-woven material and covering polymer layer. Composite contains material which includes polymer (P-1), selected from polyethylene, polypropylene, polyethyleneterephthalate and polyamide, and layer of coating with branching index g', equal or lower than 0.9, applied on at least one surface of non-woven material, and containing polymer (P-2), representing polypropylene or polyethylene. Method of composite obtaining includes stages of polymer (P-2) extrusion and covering non-woven polymer (P-1)-containing material with it. n EFFECT: invention makes it possible to obtain composite with good air-permeability and barrier properties. n 16 cl, 3 tbl |