US 5,091,491 A · Water-soluble allylphosphonate copolymers

Abstract

This invention relates to water-soluble allylphosphonate copolymers which are useful for treating aqueous systems. The allylphosphonate copolymers are characterized as having the formula: ##STR1## wherein the molar percentage of x in the copolymer is from 1 to 90 percent, the molar percentage of y in the copolymer is from 10 to 99 percent, and the total of x and y being 100 percent; and wherein each R.sup.1 is independently selected from the group consisting of hydrogen, lower alkyl groups having from 1 to about 4 carbon atoms and a salt forming cation, R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen, halogen, COOH, CH.sub.2 COOH, lower alkyl groups having from 1 to about 4 carbon atoms, and phenyl, and A is selected from the group consisting of COOH, CH.sub.2 COOH, .phi.COOH, SO.sub.3 H, CH.sub.2 SO.sub.3 H, CH(CH.sub.3)SO.sub.3 H, CH.sub.2 OCH.sub.2 CH(OH)CH.sub.2 SO.sub.3 H, .phi.-SO.sub.3 H, ##STR2## wherein n=2 to 4, CONH.sub.2, CONHCHH.sub.3, CON(CH.sub.3).sub.2, CONHCH.sub.2 OH, CONHCH(OH)COOH, CONHC(CH.sub.3).sub.2 CH.sub.2 SO.sub.3 H, COO(CH.sub.2).sub.n SO.sub.3 H, wherein n=2 to 4, and CO(OCH.sub.2 CH.sub.2).sub.n OH wherein n=1 or more, water soluble salts of sulfonate and carboxylate groups.

Claims17

Dependent claims

Water-soluble copolymers consisting essentially of the reaction product of one or more allyl phosphonate monomers having the formula:

##STR13## and one or more water-soluble, .alpha., .beta.-ethylenically unsaturated non-phosphorus containing monomers having the formula:
##STR14## wherein each R.sup.1 is independently selected from the group consisting of hydrogen, lower alkyl groups having from 1 to about 4 carbon atoms and salt forming cations, R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen, halogen, COOH, CH.sub.2 COOH, lower alkyl groups having from 1 to about 4 carbon atoms, and phenyl, and A is selected from the group consisting of SO.sub.3 H, CH.sub.2 SO.sub.3 H, CH(CH.sub.3)SO.sub.3 H, CH.sub.2 OCH.sub.2 CH(OH)CH.sub.2 SO.sub.3 H, .phi.-SO.sub.3 H, ##STR15## wherein n=2 to 4, CONH.sub.2, CONHCH.sub.3, CON(CH.sub.3).sub.2, CONHCH.sub.2 OH, CONHCH(OH)COOH, CONHC(CH.sub.3).sub.2 CH.sub.2 SO.sub.3 H, COO(CH.sub.2).sub.n SO.sub.3 H wherein n=2 to 4, and CO(OCH.sub.2 CH.sub.2).sub.n OH wherein n=1 or more, and the corresponding water soluble salts of the sulfonate and carboxylate groups.

Water-soluble copolymers consisting essentially of the reaction product of one or more allyl phosphonate monomers having the formula:

##STR18## wherein R.sup.1 is independently selected from the group consisting of hydrogen, lower alkyl groups having from 1 to about 4 carbon atoms and salt forming cations;
and a first water-soluble, .alpha., .beta.-ethylenically unsaturated non-phosphorus containing monomer having the formula:
##STR19## wherein R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen, halogen, COOH, CH.sub.2 COOH, lower alkyl groups having from 1 to about 4 carbon atoms, and phenyl, and A is selected from the group consisting of SO.sub.3 H, CH.sub.2 SO.sub.3 H, CH(CH.sub.3)SO.sub.3 H, CH.sub.2 OCH.sub.2 CH(OH)CH.sub.2 SO.sub.3 H, .phi.-SO.sub.3 H, ##STR20## wherein n=2 to 4, CONH.sub.2, CONHCH.sub.3, CON(CH.sub.3).sub.2, CONHCH.sub.2 OH, CONHCH(OH)COOH, CONHC(CH.sub.3).sub.2 CH.sub.2 SO.sub.3 H, COO(CH.sub.2).sub.n SO.sub.3 H wherein n=2 to 4, and CO(OCH.sub.2 CH.sub.2).sub.n OH wherein n=1 or more of the sulfonate groups and their corresponding water soluble salts;
and a second water-soluble, .alpha., .beta.-ethylenically unsaturated non-phosphorus containing monomer having the above defined formula except that A is selected from the group consisting of COOH, CH.sub.2 COOH, and .phi.COOH, and their corresponding water soluble salts of the carboxylate groups.

1 more element

Dependencies are inferred from the claim text.

Water-soluble allylphosphonate copolymers

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Water-soluble allylphosphonate copolymers

Life of this patent

Abstract

Claims17