Method and composition of inhibiting scale

Details Method and composition of inhibiting scale Method and composition of inhibiting scale

1973-12-10

1976-05-25

Weinblatt, Mayer

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

252DIG11, 252DIG17, C02B 502

Patent

active

039591670

ABSTRACT:
The invention disclosed relates to a method for using a new improved composition for inhibiting or preventing accumulation of scale or the like on heating surfaces in an aqueous system. The present composition includes an acrylic polymer, a water-soluble chelant, and an organophosphonic acid and/or their water-soluble salts. In a preferred embodiment, the composition is composed of sodium polymethylacrylate, nitrilotriacetic acid and hydroxyethylidene diphosphonic acid as its water-soluble salts.

REFERENCES:
patent: 3234124 (1966-02-01), Irani
patent: 3505238 (1970-04-01), Ziddell
patent: 3524811 (1970-08-01), Tsuk et al.
patent: 3666664 (1972-05-01), Lorene et al.
patent: 3671448 (1972-06-01), Kowalski et al.

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