Compositions – Heat-exchange – low-freezing or pour point – or high boiling... – Organic components
Reexamination Certificate
2006-06-26
2011-11-29
Eashoo, Mark (Department: 1767)
Compositions
Heat-exchange, low-freezing or pour point, or high boiling...
Organic components
C252S073000, C252S008000, C252S075000, C252S077000, C422S012000, C422S017000
Reexamination Certificate
active
08066902
ABSTRACT:
Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure:wherein R1, R2, R3, and R4are each independently selected from the group consisting of H, OH, COOH, C1-C10alkyl groups, glycol esters, anhydride groups, —COOM, and combinations thereof, wherein M is at least one of H, alkali metal ions, alkali earth metal ions, NH4+, amines, imidazoline, polyalcohol esters, C1 to C12 alkyl groups, and combinations thereof; wherein (1) at least three of R1, R2, R3, and R4contain the group —COOM, wherein M is defined above; or (2) at least two of R1, R2, R3, and R4contain an anhydride group, and at least one of R1, R2, R3, and R4contain the group —COOM, wherein M is defined above.
REFERENCES:
patent: 3931029 (1976-01-01), Dutton et al.
patent: 3981682 (1976-09-01), Ward et al.
patent: 4383937 (1983-05-01), Williams
patent: 4392972 (1983-07-01), Mohr et al.
patent: 4404114 (1983-09-01), Mohr et al.
patent: 4406811 (1983-09-01), Christensen et al.
patent: 4614600 (1986-09-01), Schilling et al.
patent: 4770803 (1988-09-01), Forsberg
patent: 4956106 (1990-09-01), Woodward et al.
patent: 5008039 (1991-04-01), Woodward et al.
patent: 5064552 (1991-11-01), Oppenlaender et al.
patent: 5242621 (1993-09-01), Miller et al.
patent: 5292480 (1994-03-01), Fischer et al.
patent: 5556451 (1996-09-01), Minevski
patent: 5643534 (1997-07-01), Minevski
patent: 5704961 (1998-01-01), Hudson
patent: 5741436 (1998-04-01), Gershun et al.
patent: 5925173 (1999-07-01), Frost et al.
patent: 6228283 (2001-05-01), Turcotte et al.
patent: 6391257 (2002-05-01), Woyciesjes
patent: 2002/0076591 (2002-06-01), Imaseki et al.
patent: 2006/0010872 (2006-01-01), Singh et al.
patent: 2006/0145120 (2006-07-01), Egawa et al.
patent: 2008/0166615 (2008-07-01), Egawa et al.
patent: 2010/0196773 (2010-08-01), Yang et al.
patent: 0936024 (2002-08-01), None
patent: 1262535 (2002-12-01), None
patent: 1416563 (2004-05-01), None
patent: 2006029327 (2006-03-01), None
EIC STIC report U.S. Appl. No. 11/474,726; 11474726-280021-EICsearch.pdf.
IUPAC Gold Book “acid anhydrides”, source: PAC, 1995, 67, 1307 p. 1311.
International Search Report, dated Oct. 31, 2006 for PCT/US2006/024741, International filed Jun. 26, 2006.
Written Opinion of the International Searching Authority dated Oct. 31, 2006 for PCT/US2006/024741, International filing date Jun. 26, 2006.
Gershun Aleksei V.
Marinho Filipe J.
Woyciesjes Peter M.
Yang Bo
Cantor & Colburn LLP
Eashoo Mark
Prestone Products Corporation
Stanley Jane L
LandOfFree
Methods for inhibiting corrosion in brazed metal surfaces... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for inhibiting corrosion in brazed metal surfaces..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for inhibiting corrosion in brazed metal surfaces... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4260792