Reference

trans-4-Alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes and liquid crystal compositions containing them

trans-4-Alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes and liquid crystal compositions containing them. Inoue, Hiromichi; Inukai, Takashi; Goto, Yasuyuki; Sato, Hideo; Fukui, Masahiro (Chisso Corp. , Japan). Eur. Pat. Appl.In this study， 89139-36-6 and 98-59-9 are also used. EP 96850 A1 28 Dec 1983, 19 pp. DESIGNATED STATES: R: CH, DE, GB, LI. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07C043-168; C09K003-34. APPLICATION: EP 83-105659 9 Jun 1983. PRIORITY: JP 82-101172 12 Jun 1982. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Liq. crystal compds. are described suitable for display applications. The compds. which have a high clearing point and superior stability comprise trans-4-alkyloxymethyl-1-(4'-substituted-4-biphenylyl)cyclohexanes. Thus, a liq. crystal compn. contg. I 25.5, II 34, III 25.5, and IV 15 wt. parts had a nematic temp. range of -3-+60.7°, a viscosity at 20° (h20) of 24.8 cP, a dielec. const. anisotropy (De) of 10.2 (e11 = 14.7 and e^ = 4.5), and a refractive index anisotropy (Dn) of 0.128. When it was sealed in a twisted-nematic cell of 10 m thick, the threshold voltage and satn. voltage were 1.66 and 2.26 V, resp. .

Novel method of recovering phenolic substances from aqueous alkaline waste streams

Novel method of recovering phenolic substances from aqueous alkaline waste streams. Krishnakumar, V. K.; Sharma, ManMohan (Dep. Chem. Technol., Univ. Bombay, Bombay 400 019, India). Ind. Eng. Chem. Process Des. Dev., 23(2), 410-13 (English) 1984. CODEN: IEPDAW. ISSN: 0196-4305. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 45 A 2-phase method for removing and recovering phenolic materials from aq. alk. waste streams is based on the reaction of phenolic materials with substances such as benzoyl chloride [98-88-4], p-toluenesulfonyl chloride [98-59-9], etc., dissolved in a water-immiscible solvent such as PhMe in the presence of a phase-transfer catalyst. In a continuous reactor-settler arrangement, the PhOH [108-95-2] content of an aq.In this experiment, several chemicals are used like 98-88-4 and 98-59-9 alk. stream was decreased from 2035 ppm to 45 ppm, with PhOH recovered as PhOBz [93-99-2]. .