Isopropenyl phosphonic acid copolymers used to inhibit scale for

Details Isopropenyl phosphonic acid copolymers used to inhibit scale for Isopropenyl phosphonic acid copolymers used to inhibit scale for

1982-12-20

1984-05-01

Hruskoci, Peter A.

Liquid purification or separation

Processes

Preventing, decreasing, or delaying precipitation,...

210699, 210700, 210701, 252180, 252181, 252389A, 422 15, C02F 514

Patent

active

044460287

ABSTRACT:
A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula ##STR1## wherein X=OH or OM, wherein M is a cation; and repeat units (b) of the formula ##STR2## wherein R.sub.1 is chosen from the group consisting of hydroxy, hydroxylated alkoxy, and amide and water soluble salts thereof; R.sub.2 is H, or lower alkyl of from 1-3 carbon atoms. These copolymers are effective in inhibiting the precipitation of certain scale forming salts, and also act to inhibit corrosion in water systems.

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