Reference

Easily dyed polyester fibers

Easily dyed polyester fibers. Matsumoto, Tetsuo; Kagawa, Yoshifumi; Kameyama, Koji (Japan Ester Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 61108720 A2 27 May 1986 Showa, 4 pp. (Japan) CODEN: JKXXAF. CLASS: ICM: D01F006-84. ICS: C08G063-68; D01F006-86. APPLICATION: JP 84-228694 30 Oct 1984. DOCUMENT TYPE: Patent CA Section: 40 (Textiles and Fibers) Section cross-reference(s): 41 Polyester fibers, which are easily dyed with disperse dyes and which have good fastness, comprise copolymers of ethylene terephthalates and 0. 99208-50-1 and 107811-84-7 which are cas registry numbers are also used here.5-10 mol% (OCH2CH2)mOZO(CH2CH2O)nCOC6H4CO (I; Z = Q; m + n = 1-20). An ethylene oxide adduct of p-benzoquinone with 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide and ethylene carbonate 1, 1,4-(HO2C)2C6H4 1.2, and 1,3-(HO2)2C6H4 0.2 mol were condensed in the presence of o-sulfobenzoic acid anhydride at 270°/1 atm. for 4 h and at 270°/3 torr for 1.5 h to give a compn., 5 mol% of which was reacted with bis(b-hydroxyethyl) terephthalate oligomer and mixed with Sb2O3 and Zn(OAc)2 at 285°/￡1 torr for 3 h, melt-spun and stretched to give a polyester fiber which had 19.8% dye absorption at 100° for Tersil Navy Blue SGL, compared with 2.8% for a control fiber not contg. I. .

Preparation of vinyl chloride polymers

Preparation of vinyl chloride polymers. Kaneko, Yuichiro; Ishii, Yasumichi (Nippon Zeon Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 03140302 A2 14 Jun 1991 Heisei, 5 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C08F002-00.Chemicals with cas numbers 99208-50-1 and 9002-86-2 also play role. ICS: C08F014-06. APPLICATION: JP 89-279562 26 Oct 1989. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) A method for polymn. without forming scales inside of a reactor of vinyl chloride monomer (I) or its mixt. with copolymerizable monomers in aq. soln., which comprises coating the reactor prior to use with II (R1-2 = H, C1-4 hydrocarbyl; R3 = polyphenol derivs.). Thus, 0.75% soln. of 10-(2,5-dihydroxyphenyl)-10H-9-oxa-10-phosphaphenanthrene (III) in 0.5% aq. NaOH was applied on a stainless steel reactor wall. After being dried, a reactor was charged with 13.5 ton I in 16 ton H2O contg. partly sapond. poly(vinyl alc.), di-2-ethylhexylperoxydicarbonate, and tert-butylperoxypivalate, and then the mixt. was agitated at 57.5° for 8 h. After the polymn., the reactor was washed with 250-kg/cm2 water jet and the polymn. was repeated. Overall heat-cond. coeff. and fish-eyes of a test pieces prepd. by using the obtained poly(vinyl chloride) were 580 and 580 kcal/m2-kr-°C and 40 and 43, resp., initially and after 10 repeated batches, vs. 530, 460, 120, and 480, resp., without treating the reactor wall with III. .