Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Reexamination Certificate
2009-11-17
2010-06-29
Green, Anthony J (Department: 1793)
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
C106S014050, C106S014120, C106S014420, C106S014440, C165S104190, C252S070000, C252S071000, C252S074000, C252S075000, C252S076000, C252S077000, C252S078100, C252S078300, C252S078500, C252S079000, C252S389200, C422S014000, C422S015000, C422S016000, C422S017000, C422S018000
Reexamination Certificate
active
07744775
ABSTRACT:
In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid; and (d) at least one additional component comprising at least one of a C4-C22aliphatic or aromatic mono- or dicarboxylic acid, a silicate and at least one of a silicone or a silicate stabilizing siloxane compound, and mixtures thereof. Also disclosed are heat transfer fluids that include about 5% to about 99% by weight of freezing point-depressing agent; about 1% to about 95% by weight of water; and the disclosed corrosion inhibitor composition. A method of reducing corrosion in a heat transfer system containing one or more components that contain magnesium or a magnesium alloy requires that the system and the magnesium containing components be in contact with the disclosed heat transfer fluid.
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Marinho Filipe J.
Yang Bo
Cantor & Colburn LLP
Green Anthony J
Honeywell International , Inc.
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