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
1989-12-29
1991-05-07
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...
524813, 526312, 526932, C08K 3900
Patent
active
050137875
ABSTRACT:
A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.
REFERENCES:
patent: 4514552 (1985-04-01), Shay et al.
Barron Milagros C.
Swope Ronald L.
Wilkerson, III John M.
Dec Ellen T.
Mulcahy Peter D.
National Starch and Chemical Investment Holding Corporation
Schofer Joseph L.
Szala Edwin M.
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