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US 5,698,512 AGranted
Water soluble polymers containing allyloxybenzenesulfonic acid monomer
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsAnne-Marie B. Austin, Allen M. Carrier, Michael L. Standish
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Abstract
Water soluble polymers are prepared from an allyloxybenzenesulfonic acid monomer, a methallyl sulfonic acid monomer, a copolymerizable nonionic monomer, and a copolymerizable olefinically unsaturated carboxylic acid monomer. Aqueous compositions containing the water soluble polymers and nonionic surfactants are stable to phase separation of the polymer from the nonionic surfactant.
Claims7
A composition, comprising:
- (a) from about 10 to about 40 weight percent of a polymer which comprises the polymerization product of,
- at least 2.5 mole percent of an allyloxybenzenesulfonic acid monomer represented by the chemical structure (I):
- ##STR4## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen or C.sub.1 -C.sub.6 alkyl;
- and
- X is hydrogen, an alkali or alkaline earth metal or ammonium,
- at least 0.5 mole percent of a methallylsulfonic acid monomer,
- from 10 to 20 mole percent of a copolymerizable nonionic monomer represented by the chemical structure (111):
- ##STR5## wherein n.sub.1 and n.sub.2 are independently 0 to 10;
- R.sub.1, R.sub.2, R.sub.8 and R.sub.9 are independently hydrogen, C.sub.1 -C.sub.6 alkyl, or C.sub.1 -C.sub.6 alkyl-substituted aryl;
- R.sub.7 is hydrogen, C.sub.1 -C.sub.6 alkyl, or CO.sub.2 X, where X is hydrogen, an alkali or alkaline earth metal or C.sub.1 -C.sub.alkyl;
- X.sub.1 and X.sub.2 are absent or are independently O, C.dbd.O, or hydrogen;
- R.sub.3 is absent or is C.dbd.O.sub.4, OR.sub.4, NR.sub.5 R.sub.6, C.sub.1 -C.sub.18 alkyl or hydrogen, where R.sub.4 is C.sub.1 -C.sub.18 alkyl or hydrogen and R.sub.5 and R.sub.6 are independently hydrogen, C.sub.1 -C.sub.6 alkyl, or an alkyloxyether or alcohol;
- and R.sub.10 is absent or is C.dbd.OR.sub.11, OR.sub.11, NR.sub.12 R.sub.13, C.sub.1 -C.sub.18 alkyl, or hydrogen, where R.sub.11 is C.sub.1 -C.sub.18 alkyl or hydrogen, R.sub.2 and R.sub.3 are independently hydrogen, C.sub.1 to C.sub.6 alkyl, or an alkyloxyether or alcohol;
- and
- at least 60 mole percent of a copolymerizable olefinically unsaturated carboxylic acid monomer
- (b) from about 10 to about 70 weight percent of a nonionic surfactant;
- and
- (c) water,
- wherein the composition is stable to phase separation in the substantial absence of a solubilizing agent.
16 more elements
Dependencies are inferred from the claim text.