PROPYLENE HOMOPOLYMER, FIBERS, CLOTH, WOVEN MATERIAL, FILM Russian patent published in 1999 - IPC

FIELD: polymer materials. SUBSTANCE: propylene homopolymer having in its crystalline structure 20% of stereoblock, index of polydispersity 3.0 to 6.5, and melt flowability index from 0.15 to 1000 g/10 min is prepared by polymerization of propylene monomer in presence of catalyst containing (i) solid catalyst component containing active magnesium halide covered by titanium compound and aromatic acid ester as electron donor, (ii) alkyl aluminum compounds, and (iii) 3,3,3-trifluoropropylmethyl(or ethyl)dimethoxysilane. Fibers manufactured from polymer thus obtained have lower heat-joining temperature and more wide heat joining range. EFFECT: improved quality of fibers. 9 cl, 4 tbl, 2 dwg, 7 ex