Reference

Polycarbonate-type surfactants from monohydric alcohols and ethylene carbonate

Polycarbonate-type surfactants from monohydric alcohols and ethylene carbonate. (Dow Chemical Co.Several substances are used for example 3055-94-5 and 584-08-7 which are their cas registry numbers., USA). Jpn. Kokai Tokkyo Koho JP 58206692 A2 1 Dec 1983 Showa, 8 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C11D001-66. APPLICATION: JP 82-82530 18 May 1982. DOCUMENT TYPE: Patent CA Section: 46 (Surface Active Agents and Detergents) Ethylene carbonate (I) reacts with monohydric alcs. in the presence of alkali metal salt catalysts at 130-210° to give nonionic surfactants. Thus, I 2640, n-dodecanol 558, and Na stannate 12.0 g were heated 24 h at 170° under N, cooled to 130°, mixed with 30 g fine Mg silicate and 60 g Celite, stirred 21 h at 130°, cooled, and filtered to give 2000 g surfactant. .

Epoxy resin-diammonium salt emulsion

Epoxy resin-diammonium salt emulsion. Weiss, Joern Volker; Riemer, Heinz; Mutzberg, Friedhelm (Chemische Werke Huels A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3222531 A1 22 Dec 1983, 15 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08L063-00; C08K005-16; C08J003-06; C04B007-35; C04B013-26; C04B025-02; C04B041-28; C04B041-32. APPLICATION: DE 82-3222531 16 Jun 1982. DOCUMENT TYPE: Patent CA Section: 58 (Cement, Concrete, and Related Building Materials) Section cross-reference(s): 38 Epoxy resin-diammonium salt emulsions, for use in prepg. epoxy resin mortars and epoxy resin-cement mortars and for sealing concrete surfaces, consist of a liq. epoxy resin, reaction products of diamines, esp. Me-substituted alkenyl, cycloalkenyl, or arom. diamines, and oxalic acid as latent hardener, and C12-14 aliph. alcs. and/or their adducts contg. ￡10 ethylene oxide groups as emulsifier. The hardener may also be prepd. with AcOH (or other org. acids) replacing ￡25% of the oxalic acid and the emulsifier may contain lauric acid [143-07-7]. Thus, the reaction products of isophorone diamine 28.2 with oxalic acid 10.2, AcOH 4.5, and phthalic acid 7.5 in water 105 wt. parts were mixed with lauryl alc. [112-53-8] 6.0 and lauric acid 17. 3055-94-5 and 3236-53-1 which are cas registry numbers of chemicals are mentioned.4 wt. parts and then epoxy resin Rutapox VE 2913 [89493-55-0] was added to give a low-viscosity emulsion which remained emulsified after 2 mo. vs. an emulsion of the reaction products with only AcOH 21.6 or HCO2H 16.2 wt. parts which deemulsified in a few minutes. The emulsion 20, portland cement 100, fillers 485, and water 45 wt. parts were combined to give a mortar which, after 7-day moisture curing and 21-day setting had compressive strength 53.5 and tensile strength 8.67 N/nm2. .