Compositions – Preservative agents – Anti-corrosion
Patent
1987-04-27
1990-02-06
Thexton, Matthew A.
Compositions
Preservative agents
Anti-corrosion
25238952, 252181, C23F 1118, C23F 1116
Patent
active
048986860
ABSTRACT:
New zinc stabilizing polymers containing at least 5 mole percent of a monomer represented by the structure: ##STR1## wherein: R is independently, at each occurrence, chosen from H and lower (C.sub.1 -C.sub.4) alkyl groups;
R' is a hydrocarbonaceous bridging group containing from 1-12 carbon atoms;
X is chosen from --SO.sub.3 M, --OH, --COOM groups or mixtures thereof,
M is hydrogen or some other cation species; and
n ranges from 1-10, are described. Also, the use of these polymers in combination with zinc salts, and in further combination with phosphate salts, to inhibit corrosion of iron containing metals, and other metals, when these metals are exposed to industrial waters is demonstrated. Deposit control or scale inhibition on these metals exposed to industrial waters is also observed.
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Crucil Guy A.
Fong Dodd W.
Hoots John E.
Johnson Donald A.
Cupoli Anthony L.
Epple Donald G.
Nalco Chemical Company
Premo John G.
Thexton Matthew A.
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