US5532025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting compositions
Assignee: Zipperling Kessler GmbH and Co
•
Filing: 1993-07-23
•
Granted: 1996-07-02
•
Expires: 2013-07-23
Abstract
Abstract A corrosion inhibiting composition is provided. The composition comprises an intrinsically conductive polymer, e.g. polyaniline or polypyrrole, blended in a binder material, preferably a non-thermoplastic matrix, the blend being capable of adhering to a metal surface to provide enhanced corrosion resistance to the metal. The blend provides corrosion resistance in a variety of corrosive environments such as acidic, alkaline, and salt environments. A method for protecting metal surfaces from corrosive attack by applying the corrosion inhibiting composition is provided, as well as two component corrosion inhibiting coatings, corrosion inhibited thin films of metal adhered to an intrinsically conducting polymer containing substrate, and corrosion inhibited metal bilayers.
Inventors
- 👤 Patrick J. Kinlen
- 👤 David C. Silverman
- 👤 Edward F. Tokas
- 👤 Christopher J. Hardiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:42
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D7/14; B05D7/16; C; C09; C09D; C09D5/00; C09D5/08; C09D5/24; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01B1/128; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
A method for inhibiting corrosion on a corrodible metal surface in an alkaline environment, said method comprising: applying a first coating on said metal surface, the coating comprising a composition adapted for inhibiting corrosion on a metal surface, the composition comprising an intrinsically conducting polyaniline blended in a matrix comprising an inorganic silicate or an organic resin capable of adhering to said metal surface; and applying a second coating over the first coating wherein said second coating consists essentially of an inorganic silicate or an organic resin.
Claim 2
Independent Claim
87 words
A method for inhibiting corrosion on a corrodible metal surface in an alkaline environment, said method comprising: applying a first coating on said metal surface, the coating comprising a composition adapted for inhibiting corrosion on a metal surface, the composition comprising an intrinsically conducting polyaniline blended in a matrix comprising an inorganic silicate or an organic resin capable of adhering to said metal surface; and applying a second coating over the first coating wherein said second coating consists essentially of an inorganic silicate or an organic resin.
Claim 3
Dependent Claim
85 words
A method according to claim 1 wherein said corrodible metal surface is iron, steel, copper, aluminum, nickel, zinc, cobalt, lead, chromium, tantalum, titanium, zirconium, silver, niobium or an alloy thereof; and wherein said organic resin is selected from the group consisting of shellac, phenolic resins, alkyd resins, aminoplast resins, epoxy resins, urethane, resins, acrylic resins, unsaturated polyester resins, vinyl resins, silicones, polyimides, unsaturated olefin resins, fluorinated olefin resins, crosslinkable styrenic regins, crosslinkable polyamide resins, rubber, elastomer, ionomers, mixtures thereof and mixtures thereof with crosslinking agents.
Claim 4
Dependent Claim
29 words
A method according to claim 2 wherein said corrodible surface is iron, steel, copper, aluminum, nickel, zinc, cobalt, lead, chromium, tantalum, titanium, zirconium, silver, niobium or an alloy thereof.
Claim 5
Independent Claim
89 words
A method for inhibiting corrosion on a corrodible metal surface in an alkaline and salt environment, said method comprising: applying a first coating on said metal surface, the coating comprising a composition adapted for inhibiting corrosion on a metal surface, the composition comprising an intrinsically conducting polyaniline blended in a matrix comprising an inorganic silicate or an organic resin capable of adhering to said metal surface; and applying a second coating over the first coating wherein said second coating consists essentially of an inorganic silicate or an organic resin.
Claim 6
Independent Claim
89 words
A method for inhibiting corrosion on a corrodible metal surface in an alkaline and salt environment, said method comprising: applying a first coating on said metal surface, the coating comprising a composition adapted for inhibiting corrosion on a metal surface, the composition comprising an intrinsically conducting polyaniline blended in a matrix comprising an inorganic silicate or an organic resin capable of adhering to said metal surface; and applying a second coating over the first coating wherein said second coating consists essentially of an inorganic silicate or an organic resin.
Claim 7
Dependent Claim
85 words
A method according to claim 4 wherein said corrodible metal surface is iron, steel, copper, aluminum, nickel, zinc, cobalt, lead, chromium, tantalum, titanium, zirconium, silver, niobium or an alloy thereof; and wherein said organic resin is selected from the group consisting of shellac, phenolic resins, alkyd resins, aminoplast resins, epoxy resins, urethane resins, acrylic resins, unsaturated polyester resins, vinyl resins, silicones, polyimides, unsaturated olefin resins, fluorinated olefin resins, crosslinkable styrenic resins, crosslinkable polyamide resins, rubber, elastomer, ionomers, mixtures thereof and mixtures thereof with crosslinking agents.
Claim 8
Dependent Claim
29 words
A method according to claim 5 wherein said corrodible surface is iron, steel, copper, aluminum, nickel, zinc, cobalt, lead, chromium, tantalum, titanium, zirconium, silver, niobium or an alloy thereof.
References Cited (Backward Citations)
US3419537A
Cited
US3849141A
Cited
US4581395A
Cited
US4690962A
Cited
US5152929A
Cited
US4559112A
Cited
EP0217081A1
Cited
US4678601A
Cited
US5233000A
Cited
US5139703A
Cited
US5093033A
Cited
US4818777A
Cited
US4960761A
Cited
US4927897A
Cited
US5069820A
Cited
US5160457A
Cited
WO1989002155A1
Cited
US4983690A
Cited
US4851487A
Cited
US5137991A
Cited
US5164465A
Cited
US5120472A
Cited
US5188766A
Cited
US5098938A
Cited
US5183842A
Cited
US5158707A
Cited
US5109070A
Cited
US5225058A
Cited
US5021489A
Cited
US5264157A
Cited
EP0497514A1
Cited
US5147913A
Cited
US5134177A
Cited
WO1992020072A1
Cited
US5232631A
Cited
FR2679240A1
Cited
WO1993014166A1
Cited
CA2088826A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-02 | 2000-01-01 | 2000-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-02 | 2004-01-01 | 2004-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-02 | 2008-01-01 | 2008-07-02 | $7700.00 | Window Closed / Lapsed |