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
1992-07-30
1994-03-29
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...
524232, 524377, 524379, C08F 232
Patent
active
052985555
ABSTRACT:
A stable, water-in-oil emulsion comprising an aqueous phase containing a water soluble polymer and an oil phase containing a partially esterified lower N,N-dialkanol fatty amine emulsifier, the ratio of the aqueous phase to the oil phase ranging from about a 2:1 to about 3:5:1 and the polymer content of the emulsion being at least 20%, by weight based on the total weight of the emulsion, wherein said oil phase also contains a second emulsifier comprising a nonionic, reaction product of ethylene oxide and a long chain compound containing a reactive hydroxyl and/or carboxyl group and having an HLB above 5 but less than 14, the total weight of the emulsifiers comprises about 1-5% of the emulsion, and the second emulsifier constitutes from about 10 to 150% of the weight of the fatty amide and contains less than 0.1 weight percent of sorbitan, sorbitol, mixture thereof and derivatives thereof.
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Barker Lesley J.
O'Connor Michael N.
Ryles Roderick G.
American Cyanamid Company
Schofer Joseph L.
Smith Jeffrey T.
Van Riet Frank M.
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