Emulsion Systems Inc

Union Carbide/Ucar Emulsion Systems, 410 Gregson Dr., Cary, NC 27511 Union Carbite CorpVAgricultural Products Co., Inc., PO Box 12014, Research Triangle Park, NC 27709... 

Use well-designed, specialized polymer dissolution systems wherever possible (such as those from the U.S. Filter, Inc. subsidiary, Strandco ), especially for emulsion polymers, rather than simple dissolving tanks and mixers with propeller-type impellers. This prevents undissolved lumps of polymer (fish-eyes) and the breakdown of polymer chains. Always install a strainer to prevent possible pump clogging. 

The column set was calibrated with a series of polystyrene stan rds with weight average molecular weights (Mw) between 2X10 and 4.1X10°. The standards were supplied by Pressure Chemical Co., Pittsburgh, Pa. and ArRo Laboratories, Inc., Joliet, 111. Other systems used in this work included the NBS-706 polystyrene standard and an emulsion polymerized polymethyl methacrylate sample. 

Continuous emulsion preparation using a metering pump system has been successfully used during the last decades in the margarine industry to meet the above requirements (76, 78) and is considered to be a very flexible installation (53). Well-known suppliers of metering pump systems are Bran + Luebbe Inc. of Buffalo Grove, Illinois, and American Lewa Inc. of Holliston, Massachusetts. 

The present contribution describes a novel low pressure, high flux system which utilizes an "in situ" dynamically formed silica membrane particularly suited for the ultrafiltration of emulsions. The support for this selective layer of silica was a pleated, thin channel crossflow module il (tradename "Acro-flux", Gelman Sciences, Inc.) containing 0.1 m of 0.2 urn pore size acrylonitrile copolymer membrane. 

Mangino, M.E. 1994. Protein interactions in emulsions Protein-lipid interactions. In Protein Functionality in Food System, eds. N.S. Hettiarachchy and G.R. Ziegler, pp. 147-180. New York Marcel Dekker, Inc. 

Povey MJW 2001. CrystaUization of oU-in-water emulsions. In Garti N a Sato K (editors). CrystalUzation Processes in Fats and Lipid Systems. New York Marcel Dekker Inc. pp. 251-288. 

Figure 7.11 Macroemulsion inversion as a function of monolayer spontaneous curvature. The spontaneous curvature is varied by changing the ratio of two surfactants in mixture (a), by varying the equivalent alkane carbon number (EACN), i.e. by mixing two oils in different ratios (b). and by the addition of alcohol (c). All the system are studied over the 2—3—2 transition range see the bars at the top of the plots. The left-hand axis shows the macroemulsion lifetime, denoted as the time for the separation of two-thirds of the disperse phase by volume. The right-hand axis shows the macroemulsion conductivity. All emulsions were prepared at a 1 1 oil-to-water ratio other details of the compositions are shown on the plots. DDS and WITCO TRS10-80 are commercial surfactants (Reproduced by pemiission of Marcel Dekker Inc. from ref. 78)...

Uses Wetting agent controls reaction rate, particle size, vise., polymer m.w., and stability in emulsion polymerization systems Properties APHA150 cl. liq. sp.gr. 1.08 dens. 9.0 Ib/gal pH 5.5 (10%) Ross-Miles foam 140 mm (0.1 %) 30% total solids Monawet MB-45 [Croda Inc Croda Chem. Europe Ltd]... 

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