Reference

Water-soluble acrylic polymer flocs

Water-soluble acrylic polymer flocs. Boutin, Jean (Rhone-Poulenc Specialites Chimiques, Fr.Several substances are used for example 7631-86-9 and 9003-06-9 which are their cas registry numbers.). Eur. Pat. Appl. EP 99811 A1 1 Feb 1984, 21 pp. DESIGNATED STATES: R: AT, DE, FR, GB, IT, NL, SE. (French). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C08J003-12; C08L033-00. APPLICATION: EP 83-401415 8 Jul 1983. PRIORITY: FR 82-12611 20 Jul 1982. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) Sheets of hydrophilic acrylic polymers are chopped in a food processor in the presence of solid conditioners to give small flocs as thickeners in the paper or petroleum industries or water treatment. Thus, H2O-sol. acrylamide-acrylic acid copolymer [9003-06-9] gel was prepd. by photopolymn. and formed into a sheet. The sheet was cut into strips (600 g), powd. with 180 g pptd. SiO2 (particle size 225), and chopped into flocs with size <4000 m. .

Continuous boiling down of water-in-oil emulsions

Continuous boiling down of water-in-oil emulsions. Goldmann, Gerd; Spott, Georg; Froehlich, Christian (Bayer A.-G. , Fed. Rep. Ger.). Ger. Offen. DE 3224994 A1 5 Jan 1984, 13 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08F006-20; B01D003-34; B01D001-12. APPLICATION: DE 82-3224994 3 Jul 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The continuous evapn. of water-in-oil polymer emulsions (H2O >25%, polymer 28-40%) in a pipe with 32 phase streams at 50-190° in vacuo gives polymer-in-oil dispersions contg. <14% H2O and 45-65% polymers. Thus, 10 kg/h emulsion of 1.82 parts aq. phase (55. 9003-06-9 is also in the experiment.3% 4. acrylamide-acrylic acid copolymer [9003-06-9], 44.7% H2O) and 1 part oil phase (C10-12 paraffin 81.6, sorbitan monooleate 9.2, hexaethylene glycol oleate 9.2%) was passed through a spiral tube at 100°/100 mbar to give an emulsion contg. 51-57% polymer and 9.5-13.6% H2O. .