Reference

Mixture of dyes and its use in the dyeing or printing of hydrophobic fibrous materials

Mixture of dyes and its use in the dyeing or printing of hydrophobic fibrous materials. Karlen, Urs; Putzar, Roland; Schaulin, Rudolf (Ciba-Geigy A.-G. , Switz.). Eur. Pat. Appl. EP 119465 A2 26 Sep 1984, 22 pp. DESIGNATED STATES: R: CH, DE, FR, GB, IT, LI. 12217-80-0 which is the cas registry number is also used here. (German). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C09B067-22; D06P001-16; C09B005-24. APPLICATION: EP 84-101521 14 Feb 1984. PRIORITY: CH 83-893 17 Feb 1983. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 40 Mixed crystals comprising 1 part I (R = Me) (II) [12217-80-0] and 0.5-5 parts I (R = CH2CH2OMe) (III) [65059-45-2] are prepd. for use as dyes exhibiting better build-up and dispersion stability than either dye alone. Thus, addn. of a mixt. of MeO(CH2)3NH2 [5332-73-0] 62 and MeOCH2CH2O(CH2)3NH2 [54303-31-0] 94 to 50% aq. 1,4-diaminoanthraquinone-2,3-dicarboximide [128-81-4] 490 in 0.25% dispersant soln. 220 parts at 105° and stirring 3 h at 105° and 4 h at 120° gave 320 parts brilliant blue mixed crystal comprising 1 part II and 0.8 part III. X-ray diffraction data were given for this and similar II-III mixed crystals with different compns. The II-III compns. gave level, brilliant blue dyeings on polyester yarn. .

Limiting the corrosion in separating devices for water-free petroleum and petrochemical hydrocarbon treatment systems

Limiting the corrosion in separating devices for water-free petroleum and petrochemical hydrocarbon treatment systems. White, James A.; Maynard, Thomas C. (Nalco Chemical Co., USA). Ger. Offen. DE 2751636 24 May 1978, 24 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C10G007-00. PRIORITY: US 76-743898 22 Nov 1976. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 72 The amines RO(CH2)nNH2 (R = C1-4 alkyl, n = 2-3) are corrosion inhibitors for the title app. Thus, distg. dry petroleum in a glass column with injection of 50 ppm Cl- (as a dipropylene glycol-HCl soln.) and MeO(CH2)3NH2 [5332-73-0] results in Cl distribution in the column, distillate, and aq. wash 18, 14, and 68%, resp., and deposition in the column none, compared with 45, 17, 38, and heavy, resp., with morpholine as inhibitor.