Reference

Efficient catalyst for polymerizing olefins

Efficient catalyst for polymerizing olefins. Shipley, Randall S. (Dow Chemical Co., USA). U.S. US 4496661 A 29 Jan 1985, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: ICM: C08F004-64. NCL: 502115000. APPLICATION: US 83-545311 24 Oct 1983. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Catalysts that do not require removal for suitable polymer color and properties contain Ti (halo)hydrocarbyloxides, org. Mg compds., and org. Al compds. Thus, 2.74 mL TiCl4 was mixed with 0.45 mL water in 96.81 mL Isopar E, and dild. with Isopar E to give a 0.025M TiOCl2 [13780-39-7] soln. Stirring 175 psi C2H4 and 3 psi H with 2 L Isopar contg. 5 mL mixt. of Isopar 97.82, 0.73M sec-BuMgBu [39881-32-8] 0.82, 1.00M EtAlCl2 [563-43-9] 0.75, 0.025M (iso-PrO)4Ti [546-68-9] 0.30, and 0.025M TiOCl2 0.30 mL for 20 min at 150° gave polyethylene [9002-88-4] with melt indexes I2 and I10 4.51 and 37.39 g/10 min at catalyst efficiency 2.627 Mlb/lb Ti, compared with 1.95, 16.09, and 0.810, resp., without (iso-PrO)4Ti.

Fire-resistant rayon fibers

Fire-resistant rayon fibers. Watanabe, Haruo; Yagami, Kazuo; Tsumori, Takao (Kohjin Co., Ltd., Japan). Japan. JP 51036368 B4 8 Oct 1976 Showa, 3 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: D01F002-10. APPLICATION: JP 68-79246 29 Jul 1968. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Forming particles from mixts. contg. TiCl4, SbCl3, or ZrCl4, Sb2O3, ZrOCl2, or Ti oxychloride, and Na metasilicate (I) [6834-92-0] or Na metaaluminate [1302-42-7] and wet spinning a viscose compn. contg. the resulting particles gave fire-resistant fibers with improved resistance to washing. Thus, a mixt. contg. 100 parts TiCl4 and 25 parts Sb2O3 and H2O at 1:10 wt. ratio was neutralized with I. A viscose compn. contg. 8% cellulose and 5% (based on cellulose) particles (formed from an aq. mixt. 1302-42-7 and 13780-39-7 which are cas registry numbers of substances are two of reagents here. contg. 10% of the resulting ppts. and 1% of an anionic surfactant) was wet spun and the spun fibers were purified to give fibers with wt. loss after exposure to a flame for 1 s 81% and 80% (after washing for 3 cycles), compared with 50(5%) for fibers spun from a similar compn. without TiCl4 and I. .