| abstract |
PURPOSE:Novel acrylic synthetic yarn having high flame retardance, improved gloss and transparency, consisting of a polymer comprising acrylonitrile and a vinyl monomer copolymerizable with it, containing an inorganic tin compound having a specific particle diameter. CONSTITUTION:A polymer reaction mixture obtained by subjecting acrylonitrile and a vinyl monomer copolymerizable with it to emulsion polymerization, etc. is blended with a tin compound (preferably water-soluble tin compound to become gelatinous precipitation or colloidal state by dilution with water, etc.). The polymer is then separated, purified, blended with a solvent, spun, and the prepared yarn has 0.1-8wt% calculated as metal tin content of inorganic tin compound having <=100mmu average particle diameter, to give the desired yarn. USE:Curtains, carpets, toys, etc. |