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US3910797A
Expired / Lapsed
US
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Anticorrosive coating system
Assignee: Courtaulds Coatings Inc
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Filing: 1972-07-31
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Granted: 1975-10-07
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Expires: 1992-07-31
Abstract
Abstract An anticorrosive coating system comprises a major amount of an organic silicate such as an alkyl, alkoxy, or aryl silicate and an effective amount of a ketimine. A pigment such as, but not limited to, zinc dust, and the like is added to the system for which the silicate acts as a binding agent. Optionally, the system may include a solvent such as a hydrocarbon and the like, and fillers such as, but not limited to, montmorillonite and the like.
Inventors
- 👤 Ronald W Beers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:44
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C09; C09D; C09D5/00; C09D5/08; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
46 words
A COATING COMPOSITION WHICH COMPRISES: 1. 10 TO 90 PARTS BY WEIGHT OF A WATER-FREE ORGANIC SILICATE SELECTED FROM THE ALKYL, ARYL, AND ALKOXY SILICATES, AND 2. 2 TO 50 PARTS BY WEIGHT OF A KETIMINE SUFFICIENT TO CURE SAID ORGANIC SILICATE ON EXPOSURE TO WATER.
Claim 2
Dependent Claim
46 words
A COATING COMPOSITION WHICH COMPRISES: 1. 10 TO 90 PARTS BY WEIGHT OF A WATER-FREE ORGANIC SILICATE SELECTED FROM THE ALKYL, ARYL, AND ALKOXY SILICATES, AND 2. 2 TO 50 PARTS BY WEIGHT OF A KETIMINE SUFFICIENT TO CURE SAID ORGANIC SILICATE ON EXPOSURE TO WATER.
Claim 3
Dependent Claim
19 words
2 to 50 parts by weight of a ketimine sufficient to cure said organic silicate on exposure to water.
Claim 4
Dependent Claim
19 words
2 to 50 parts by weight of a ketimine sufficient to cure said organic silicate on exposure to water.
Claim 5
Dependent Claim
18 words
A composition in accordance with claim 1 containing a sufficient amount of solvent to provide a sprayable vehicle.
Claim 6
Dependent Claim
21 words
A composition in accordance with claim 1 containing a sufficient amount of a solid pigment to form an abrasion resistant film.
Claim 7
Dependent Claim
59 words
A composition which consists essentially of about 10 to about 90 parts by weight of polyethyl silicate, about 2 to about 50 parts by weight of ketimine, about 10 to about 40 parts by weight of a solvent, about 20 to 93 parts by weight of a pigment, and from 0 to about 15 parts by weight of filler.
Claim 8
Dependent Claim
59 words
A composition which consists essentially of about 10 to about 90 parts by weight of polyethyl silicate, about 2 to about 50 parts by weight of ketimine, about 10 to about 40 parts by weight of a solvent, about 20 to 93 parts by weight of a pigment, and from 0 to about 15 parts by weight of filler.
Claim 9
Dependent Claim
49 words
A composition in accordance with claim 4 in which the polyethyl silicate is about 30 to about 60 parts by weight and the ketimine is about 5 to about 50 parts by weight, and in which the solvent comprises mineral spirits, and the pigment is zinc dust or powder.
Claim 10
Dependent Claim
22 words
A composition in accordance with claim 4 in which the ketimine is the reaction product of ethylene diamine and methyl isobutyl ketone.
Claim 11
Dependent Claim
49 words
A composition in acCordance with claim 1 wherein said composition comprises: 10 to 90 parts by weight of said organic silicate, 2 to 50 parts by weight of said ketimine, 10 to 40 parts by weight of a solvent, and 20 to 93 parts by weight of a pigment.
Claim 12
Dependent Claim
33 words
A composition in accordance with claim 7 in which the pigment is selected from the group consisting of zinc dust or powder, titanium dioxide, aluminmum powder or flakes, Fe2O3 powder and Sb2O3 powder.
Claim 13
Dependent Claim
37 words
A composition in accordance with claim 7 in which said silicate is tetraethyl orthosilicate and a small but efffective amount of a montmorillonite is present as a filler to aid in film build and reduce pigment settling.
Claim 14
Dependent Claim
20 words
A composition in accordance with claim 7 in which the silicate is a mixture of tetra ethyl orthosilicate and polyethylsilicate.
Claim 15
Dependent Claim
15 words
A composition in accordance with claim 7 in which the silicate is an ethyl silicate.
Claim 16
Dependent Claim
15 words
A composition in accordance with claim 7 in which the silicate is tetra ethyl silicate.
Claim 17
Dependent Claim
35 words
A composition in accordance with claim 7 in which the organic silicate is 30 to 60 parts by weight of the composition and the ketimine is 5 to 50 parts by weight of the composition.
Claim 18
Dependent Claim
17 words
A composition in accordance with claim 7 which contains a small but effective amount of asbestos fiber.
Claim 19
Dependent Claim
51 words
A coating composition vehicle curable by exposure to atmospheric vapor which consists essentially of: 10 to 90 parts by weight of polyethyl silicate, 2 to 5 parts by weight of a ketimine, 10 to 40 parts by weight of a solvent, and 0 to 15 parts by weight of a filler.
Claim 20
Dependent Claim
51 words
A coating composition vehicle curable by exposure to atmospheric vapor which consists essentially of: 10 to 90 parts by weight of polyethyl silicate, 2 to 5 parts by weight of a ketimine, 10 to 40 parts by weight of a solvent, and 0 to 15 parts by weight of a filler.
Claim 21
Dependent Claim
26 words
A composition in accordance with claim 15 in which said solvent comprises xylene, butanol and hydrocarbon boiling in the range from about 300* to about 350*F.
Claim 22
Dependent Claim
25 words
A composition in accordance with claim 16 which contains a small but effective amount of the filler and the filler comprises asbestos fiber and silica.
Claim 23
Dependent Claim
13 words
A composition in accordance with claim 17 together with zinc dust or powder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |