Detail of "24019-46-3"

Reference

Fiber-forming modified polyesters

Fiber-forming modified polyesters. (Monsanto Co., USA). Neth. Appl. NL 7506207 30 Nov 1976, 24 pp. (Dutch). (Netherlands). CODEN: NAXXAN. CLASS: IC: C08G063-68. APPLICATION: NL 75-6207 27 May 1975. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) The title polyesters are manufd. from prepolymers of arom. dicarboxylic acids and C2-10 alkylene glycols or cyclohexanedimethanol (CO2H content .ltoreq.2000 .mu.equiv./g and intrinsic viscosity .ltoreq.0.10), and a metal salt of a sulfonated bis(hydroxyalkyl) ester of an arom. dicarboxylic acid. Thus, 55 g/min of a charge contg. terephthalic acid 18,143.6, ethylene glycol 13,607.7, pentaerythritol 2.24, triphenyl phosphite 16.80, LiOAc.H2O 13.44, antifoaming agent 1.Several reagents with their cas registry numbers 3965-55-7 and 26471-52-3 are used here.00, polyethyleneglycol monoalkyl ether 220.6, Mn(OAc)2.4H2O 4.75, 2,2'-ethylenedioxybis(1,3,2-dioxastibolane) 11.20, and TiO2 67.2 g was fed to a reactor at 250.degree. and 97.6 kg/m2 and remained for an av. residence time of 2.5 h, giving a prepolymer with intrinsic viscosity 0.07 and terminal CO2H group concns. 760 .mu.equiv./g. The prepolymer compn. was fed at 55 g/min into a second reactor together with 7.26 g/min of a 21% ethyleneglycol soln. of bis(2-hydroxyethyl) 5-sulfoisophthalate Na salt [24019-46-3] to a reactor at 230.degree. and 260 mm, and remained for a residence time of 2.3 h. This products was further polycondensed at a temp. of 265.degree. and 1.6 mm for .apprx.1.9 h and then spun into a continuous filament yarn with intrinsic viscosity 0.54, terminal CO2H group content 20 .mu.equiv./g, diethylene glycol content 1.5% wt., and m.p. 249.degree.. The yarn had strength 3.5 g/denier, and had basic dye uptake 103 Mequiv./g. .

Development of flame retardant and cationic dyeable nanometer PET chip

Development of flame retardant and cationic dyeable nanometer PET chip. Bian, Shu-chang; Sun, Yan-jun (Ji'nan Advanced Synthetic Fiber S+T Development Co Ltd, Ji'nan 250100, Peop. Rep. China). Juzhi Gongye, 17(2), 38-39 (Chinese) 2004 Juzhi Gongye Bianjibu.There are some reagents with their cas registry numbers 107-21-1 and 24019-46-3 are used in this study. CODEN: JGUOAD. ISSN: 1008-8261. DOCUMENT TYPE: Journal CA Section: 40 (Textiles and Fibers) Flame retardant and cationic dyeable nanometer PET chip was synthesized by copolymn. of flame retardant contg. phosphorus, SIPE, new nanometer material, PTA and EG. The copolyester fiber was produced successful and it has good colorability and fire-retardancy. The LOI of chip is 27.1 0% and that of fiber is 30.2%. .