Copolymers of fumaric acid and allyl sulfonic acid
Abstract
Abstract FORMATION OF HARD ADHERENT SCALE DEPOSITS OF INSOLUBLE SALTS PARTICULARLY CARBONATES AND SULFATES OF METALS SUCH AS CALCIUM OR OTHER ALKALINE EARTH METALS, AND/OR IRON ARE INHIBITED, CONTROLLED OR PREVENTED ON, OR REMOVED FROM (A) THE WALLS OF EVAPORATORS, COOLING TOWERS, HEAT EXCHANGERS, BOILERS AND DEVICES WHERE A THERMAL GRADIENT EXISTS OR AREAS WHERE CATALYTICALLY ACTIVE SITES INDUCE SCALE FORMATION IN AQUEOUS SYSTEMS BY (B) FROM ABOUT 2/10 TO 2000 PARTS PER MILLION OF AN ALIPHATIC COPOLYMER OF MONOVINYL COMPOUND AND A VINYL SULFONATE HAVING (C) FROM ABOUT 25 MOL PERCENT TO 75 MOL PERCENT OF THE SULFONATE AND (D) A MOLECULAR WEIGHT OF ABOUT 1000 TO 25,000. THE COPOLYMER IS USEFUL ALONE, AND IN COOPERATION WITH CORROSION INHIBITORS, OTHER SEQUESTRANTS AND CHELATING AGENTS.
Inventors
- 👤 Frederick Herman Siegele
Bibliographic Details
Claims Analysis
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