Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-11-09
1996-06-25
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525369, 525378, 210710, C08F 812
Patent
active
055300693
ABSTRACT:
Dispersions of finely divided high molecular weight polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer without undesirable side chain reactions to form high molecular weight anionic acrylamide polymers. A preferred technique for forming these products comprises the formation of a stabilized water-in-oil emulsion of aqueous acrylamide monomer, polymerizing the monomer, reacting the polymer emulsion thus formed with a hydrolysis agent and inverting the resultant hydrolyzed polymers into solution. These materials are useful in a variety of industrial applications for removing particulates from effluent streams.
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patent: 4034809 (1977-07-01), Phillips et al.
patent: 4171296 (1979-10-01), Connelly et al.
patent: 4339371 (1982-07-01), Robinson et al.
Chem. Abs. vol. 99, No. 10, Sep. 5, 1983, Columbus, Ohio, Abs. No. 71334, Polymerization of Acrylamide, Dimonie et al. Rom. R075,667.
Neff Roger E.
Ryles Roderick G.
Cytec Technology Corp.
Lipman Bernard
Van Riet Frank M.
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