POLYETHYLENE COMPOSITIONS, METHOD FOR PRODUCTION THEREOF, FIBRES MADE THEREFROM AND METHOD OF PRODUCING FIBRE Russian patent published in 2013 - IPC C08L23/04 C08L23/08 D01D10/02 D01D5/12 D01F6/04 D01F6/30 D04H1/56 D04H3/16 

FIELD: chemistry.

SUBSTANCE: invention relates to fibre made from a polyethylene composition, a method of making said fibre, fabric made from said fibres and a method of making said fabric. The fibre is made from a polyethylene composition which contains at least 80 wt % of a (co)polymer, which contains at most 100 wt % links obtained from ethylene and less than 20 wt % links of one or more α-olefin comonomers. The composition has density of 0.920-0.970 g/cm³, molecular weight distribution (M_w/M_n) of 1.70-3.5, flow melt index (I₂) of 0.2-1000 g/10 min, molecular weight distribution (M_z/M_w) of less than 2.5 and vinyl unsaturation level of less than 0.1 vinyl groups per thousand carbon atoms present in the backbone chain of said composition. The disclosed fibre can have denier value per filament less than 50 g/9000 m, breaking strength of 0.1-15 g/denier and relative elongation less than 1500%.

EFFECT: fabric made from said fibre, both woven and nonwoven, have high tearing strength, improved softness and drapeability.

10 cl, 4 dwg, 10 tbl