C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
31/51
C23F 11/167 (2006.01) C23F 11/10 (2006.01)
Patent
CA 1309854
ABSTRACT A process and composition using hydroxyphosphono- acetic acid or its water-soluble salts in combination with certain copolymers, such as water-soluble 1-acrylamido-2-methylpropane sulfonic acid copolymers with acrylic acid or methacrylic acid, provide improved corrosion protection for iron based metal in contact with the system water of aqueous systems.
543860
Betzdearborn Inc.
Gowling Lafleur Henderson Llp
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