METHOD OF PREPARING POLYAMIDE-BASED STABILIZED COMPOSITIONS Russian patent published in 2005 - IPC

Abstract RU 2250242 C1

FIELD: synthetic fiber production.

SUBSTANCE: preparation of composition, which can be used for molding-mediated manufacture of synthetic threads, fibers, and filaments and therefore manufacture of woven, knitted, nonwoven, or napped colored ware, is characterized by that 0.01-0.04% of phosphorus-containing stabilizing additive, 0.10-0.30% of sterically hindered phenol antioxidant, and 0.15-0.5% of light stabilizer are introduced into polymerization medium before or during polymerization, said phosphorus-containing stabilizing additive being selected from phosphorous and hypophosphorous acids and said hindered phenol containing at least one sterically hindered amino group.

EFFECT: increased light stability of polyamide ware and avoided significant foaming during polymerization process.

15 cl, 1 tbl, 3 ex

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RU 2 250 242 C1

Authors

Sharbonno T'Erri

T'Erri Zhan-Fransua

Dates

2005-04-20Published

2001-12-21Filed