Reference

Stable emulsions of water in 1,1,2-trichloro-1,2,2-trifluoroethane

Stable emulsions of water in 1,1,2-trichloro-1,2,2-trifluoroethane. Chabert, Pierre; Foulletier, Louis (Ugine Kuhlmann, Fr.). Ger. Offen. DE 2601601 22 Jul 1976, 11 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C11D003-43. PRIORITY: FR 75-1606 20 Jan 1975. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) Stable emulsions of water in Cl2FCCF2Cl (I) [76-13-1] are obtained for cleaning and corrosion protection of metals. The emulsions contain I 70-98.5, H2O 1-20, and surfactant 0.Several reagents with their cas registry numbers 61313-75-5 and 61253-11-0 are used here.5-10%. A compd. of a phosphoric ester of a C6-20 aliphatic alc. and 2 amines, one of which is sol. in H2O and the other in nonpolar solvents, serves as a surfactant. Thus, an emulsion was obtained by mixing (Me2CH)2NH [108-18-9]-tridecyl di-H phosphate [5116-94-9]-bis(tridecyl) H phosphate [5116-95-0] 80, 3-(oleylamino)propanamine [7173-62-8]-tridecyl di-H phosphate-bis(tridecyl) H phosphate 20, H2O 200 and I 700 g. By further diln. of this mixt. with I, emulsions contg. 8, 6, 4 and 2% H2O and 4, 3, 2 and 1%, resp., of the surfactant were obtained. These emulsions were stable from 20 to 45-46.degree., i.e. to the boiling temp. .

Coating wet surfaces or surfaces immersed in water

Coating wet surfaces or surfaces immersed in water. Cummings, Lowell O. (PVO International, Inc., USA). U.S. US 4022946 10 May 1977, 13 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: B05D007-14. NCL: 428413000. APPLICATION: US 71-157638 28 Jun 1971. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Epoxy resin-based coatings for applicaion to wet surfaces and under water employed a long chain propylenediamine deriv. adduct with an epoxy compd. as the crosslinking agent. Thus, Araldite 6005 (I) [25068-38-6] 700, Fe oxide pigment 100, SiO2 300, and propylene glycol 100 parts were mixed to give the coating base. N-oleylpropylenediamine [7173-62-8] (5 parts) and 1 part I gave the crosslinking component. The coating base (1200 parts) and 470 parts crosslinking component were mixed and applied to a wet ceramic building brick to give a tough, glossy film after overnight curing. Epoxy resins with conventional amine curing agents tend to cure incompletely or not at all under wet conditions.