Compositions – Preservative agents – Anti-corrosion
Patent
1994-10-21
1998-02-03
Gibson, Sharon
Compositions
Preservative agents
Anti-corrosion
2523893, 25238961, 106 1444, 106 1434, 106634, 106635, 106640, 427421, 427318, 4272071, 4274191, C09K 300, C23F 1100
Patent
active
057140936
ABSTRACT:
A system is disclosed for inhibiting the corrosion of ferrous and other metals by passivating the metals. The system includes novel buffered compositions which may be applied to metal products for preventing or retarding corrosion and methods for applying the buffered compositions to metal products such that corrosion protection of the products is achieved through passivation. The methods include an in-situ application to existing structures with metal reinforcement as well as applications to metal products during manufacture. Generally, the compositions may be in various forms and comprise a carrier component and one or more particulate pH buffer components. The particles of buffer are selected to retain the proximity of the metal at a pH at which the metal is passive to corrosion.
REFERENCES:
patent: 3425207 (1969-02-01), Campbell
patent: 3646748 (1972-03-01), Lang
patent: 3700012 (1972-10-01), Alderfer
patent: 3778994 (1973-12-01), Humphries
patent: 3885380 (1975-05-01), Hacker
patent: 3903013 (1975-09-01), Foord et al.
patent: 3912548 (1975-10-01), Faigen
patent: 3917648 (1975-11-01), McLeod
patent: 3972304 (1976-08-01), Boucher
patent: 3979896 (1976-09-01), Klett et al.
patent: 3996413 (1976-12-01), Foord et al.
patent: 4123894 (1978-11-01), Hughes et al.
patent: 4144074 (1979-03-01), Itoh et al.
patent: 4197695 (1980-04-01), Hughes et al.
patent: 4344278 (1982-08-01), Jamison et al.
patent: 4445321 (1984-05-01), Hutchinson
patent: 4473936 (1984-10-01), Kellner et al.
patent: 4490969 (1985-01-01), Simpson et al.
patent: 4555445 (1985-11-01), Frey et al.
patent: 4595425 (1986-06-01), Harding
patent: 4635432 (1987-01-01), Wheeler
patent: 4635433 (1987-01-01), Takei et al.
patent: 4661387 (1987-04-01), Watanabe et al.
patent: 4681749 (1987-07-01), Usui et al.
patent: 4683019 (1987-07-01), Motoki
patent: 4776161 (1988-10-01), Sato et al.
patent: 4842645 (1989-06-01), Miyata et al.
patent: 4849282 (1989-07-01), Watanabe et al.
patent: 4870814 (1989-10-01), Chacko et al.
patent: 4921731 (1990-05-01), Clark et al.
patent: 4985313 (1991-01-01), Penneck et al.
patent: 5004562 (1991-04-01), Kissel
patent: 5004563 (1991-04-01), Kissel
patent: 5028489 (1991-07-01), Kissel
patent: 5041486 (1991-08-01), Kissel
patent: 5121573 (1992-06-01), Vassena
patent: 5137706 (1992-08-01), Annen et al.
patent: 5139820 (1992-08-01), Sawada et al.
patent: 5149439 (1992-09-01), Birchall
patent: 5158605 (1992-10-01), Kissel
patent: 5166248 (1992-11-01), Kissel
patent: 5208077 (1993-05-01), Proctor et al.
patent: 5209987 (1993-05-01), Penneck et al.
patent: 5292799 (1994-03-01), Naito et al.
Schupack, Morris, "Durability Study of a 35-Year-Old Post-Tensioned Bridge," Concrete International, pp. 54-58 (Feb. 1994).
Ross, Philip E., "Smart Jell-O," Forbes, pp. 150-151 (Feb. 14, 1994).
Wolkomir, Richard, "Inside the Lab and OUt, Concrete is More Than It's Cracked Up to Be," Smithsonian, pp. 22-31 (Jan. 1994).
Osada, Yoshito and Simon B. Ross-Murphy, "Intelligent Gels," Scientific American, pp. 82-87 (May 1993).
Vejvoda, Miroslav, "Post tensioned Industrial Floors," Concrete International (Jan. 1993).
Freyermuth, Clifford L., "Durability of Post-Tensioned Prestressed Concrete Structures," Concrete International, pp. 58-65 (Oct. 1991).
"Corrosion of Metals in Concrete," Report of Committee No. 222, American Concrete Institute, Report No. ACI 222-R-89 (1989).
Tanka, Yoshito, Makoto Kurauchi and Yoji Masuda, Ten Year Marine Atmosphere Exposure Test of Unbonded Prestressed Concrete Prisms, Post-Tensioning Institute, Phoenix, Arizona (1988).
Abayarathna, Dharma. "Measurement of Corrosion Under Insulation and Effectiveness of Protective Coatings." NACE 1997.
Abayarathna, Dharma et al. "Monitoring of Corrosion Under Insulation and Effectiveness of Protections Applied." Corrosion '96, NACE T-5A-30a Task Group Meeting.
Dalton, Bill. "Thin Film Corrosion Coatings for Hardware." NAVSEA 1996. Jun. 6, 1996.
Heimann, Bob. "Solution for Crevice Corrosion in Wire Rope with Intelligent Material." NAVSEA 1996. Jun. 6, 1996.
McGowan, Nancy. "Effective Technology for Corrosion Under Insulation and Effectiveness of Protective Coatings." Presented at NACE 1997.
McGowan, Nancy. "Innovation and Environmentally Benign Solution for Corrosion Under Insulation (C.U.I.) for Steam Process Piping." NAVSEA 1996. Jun. 6, 1996.
Armstrong, R.D. et al. "Behavior of Sodium Silicate and Sodium Phosphate (Tribasic) as Corrosion Inhibitors for Iron." Journal of Applied Electrochemistry. vol. 24, pp. 1244-1248, 1994.
Armstrong, R.D. et al. "The Corrosion Inhibition of Iron by Silicate Related Materials." Corrosion Science, vol. 28, No. 12, pp. 1177-1181, 1988.
Bernard, M.C. et al. "In Situ Raman Study of the Corrosion of Zinc-Coated Steel in the Presence of Chloride." Journal of Electrochemical Society. vol. 142, No. 7, Jul. 1995.
Cartledge, G.H. "The Existence of a Flade Potential on Iron Inhibited by Ions of the XD.sub.4.sup.n- Type." Journal of Electrochemical Society. vol. 114, No. 1, pp. 973-980, (1957).
Cartledge, G.H. "The Mechanism of the Inhibition of Corrosion by the Pertechnetate Ion, Part IV. Comparison with Other XO.sub.4.sup.n- Inhibitors." J. Electrochem. Soc. vol. 100, pp. 1037-1043, Aug. 1956.
Cartledge, G.H. "Noncathodic Effects of the Permanganate Ion in the Anodic Passivation of Iron." Journal of Electrochemical Society. vol. 114, No. 1, pp. 39-42, (1967).
Hinton, Bruce. "Zirconium Oxide Pretreatment." Metal Finishings. p. 61, Sep. 1991.
Munger, C.G. "The Chemistry of Zinc Silicate Coatings." Corrosion Prevention and Control. Pp. 140-143, Dec. 1994.
Nagata, Hideki et al. "Analytical Study of the Formation Process of Hemimorphite. Part II. Analysis of the Formation Process from Corrosion Products of Zinc by the Anodic Oxidation Method." Zairyo to Kankyo. vol. 42, pp. 377-383, 1992.
Pyor, M.J. et al. "The Inhibition of the Corrosion of Iron by Some Anodic Inhibitors." Journal of Electrochemical Society. vol. 100, No. 3, pp. 203-215, 1953.
Scovil, Jeff. "Crystal Clear." Earth. pp. 58-60, Apr. 1997.
Sergi, G. et al. "Corrosion of Galvanized and Galvannealed Steel in Solutions of pH 9.0 to 14.0." Corrosion. vol. 41(11), pp. 618-624, 1985.
Suziki, Ichiro et al. "Zinc-Zinc Chloride Composite Electrodeposited Steel Sheet." Corrosion Science. vol. 28(5), pp. 475-486, 1987.
Taylor, H.F.W. "The Dehydration of Hemimorphite." The American Mineralogist. vol. 47, pp. 932-945, Jul.-Aug. 1962.
Weisstach, A. et al. "An Electrochemical Study of Heterpoly Molybdates as Cooling Water Corrosion Inhibitors," Corrosion. vol. 28, No. 8, pp. 299-306, 1972.
Williams, L.F.G. "Initiation of Corrosion of Chromated Zinc-Zinc Electroplate on Steel." Corrosion Science. vol. 13, No. 11, pp. 865-868, 1973.
Wroblowa, H.S. et al. "The Mechanism of Oxygen Reduction on Zinc." Journal of Electrochemical Society. vol. 295, pp. 153-161, 1990.
"Zinc Blende." p. 3378, (1992).
Dalton William M.
Heimann Robert L.
Webb David R.
Baxam Deanna
Elisha Technologies Co. L.L.C.
Gibson Sharon
LandOfFree
Corrosion resistant buffer system for metal products does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Corrosion resistant buffer system for metal products, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Corrosion resistant buffer system for metal products will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-659547