Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1993-12-14
1994-12-27
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524753, 524801, C08K 515
Patent
active
053767136
ABSTRACT:
Stable, water-in-oil emulsions are prepared wherein the aqueous phase thereof contains a water-soluble polymer and the oil phase thereof contains a partially esterified lower N,N-dialkanol fatty amine emulsifier by the emulsion polymerization of water-soluble monomers at a ratio of aqueous phase to oil phase of about 2 to 1 to about 3.5 to 1 and a monomer content of at least about 20%, by weight, wherein the polymerization is conducted in the presence of a second emulsifier comprising a non-ionic, reaction product of ethylene oxide and a long chain compound containing a reactive hydroxyl and/or carboxyl group and having an HLB of above 5 but less than 14, the total weight of the emulsifiers comprising about 1-5% of the emulsion wherein the second emulsifier constitutes from about 10 to about 150% of the weight of the fatty amide and contains less than 0.1 weight percent of sorbitan, sorbitol mixtures thereof and derivatives thereof.
REFERENCES:
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patent: 4764574 (1988-08-01), Clark, Jr.
Barker Lesley J.
O'Connor Michael N.
Ryles Roderick G.
Cytec Technology Corp.
Schofer Joseph L.
Smith Jeffrey T.
Van Riet F. M.
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