US4014703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One package coating composition
Assignee: Akzo America Inc
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Filing: 1975-04-04
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Granted: 1977-03-29
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Expires: 1995-04-04
Abstract
Abstract A vehicle composition for particulate solids comprising a condensate of an alkyl polysilicate having an SiO2 content of about 40 percent, zinc chloride and an organic solvent. The resulting vehicle composition is mixed with a cathodically active metal and, if desired, fillers to form a coating which exhibits a high degree of stability and is highly resistant to corrosion.
Inventors
- 👤 Hossein Hayati
- 👤 Russell S. Towers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:08
CPC Classifications
C; C09; C09D; C09D1/00; C09D1/02; C09D5/00; C09D5/08; C09D5/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
99 words
A vehicle for a single package coating composition consisting essentially of a hydrolyzed alkyl polysilicate having a hydrolysis level of from 50 to 65 percent, an organic solvent and from 3 to 5.5 percent by weight of zinc chloride based on the total weight of the hydrolysate, said hydrolysate is obtained by hydrolyzing the alkyl polysilicate containing about 40 percent SiO 2 in the presence of an organic solvent, and water in an amount of from about 0.08 to about 0.21 mole per mole of alkoxy present on the alkyl polysilicate at a pH of from 1.0 to 6.5.
Claim 2
Dependent Claim
99 words
A vehicle for a single package coating composition consisting essentially of a hydrolyzed alkyl polysilicate having a hydrolysis level of from 50 to 65 percent, an organic solvent and from 3 to 5.5 percent by weight of zinc chloride based on the total weight of the hydrolysate, said hydrolysate is obtained by hydrolyzing the alkyl polysilicate containing about 40 percent SiO 2 in the presence of an organic solvent, and water in an amount of from about 0.08 to about 0.21 mole per mole of alkoxy present on the alkyl polysilicate at a pH of from 1.0 to 6.5.
Claim 3
Dependent Claim
13 words
The vehicle of claim 1 wherein the alkyl polysilicate is ethyl silicate "40".
Claim 4
Dependent Claim
14 words
A single package coating composition containing the vehicle of claim 1 and particulate solids.
Claim 5
Dependent Claim
13 words
The composition of claim 3 wherein the particulate solids are cathodically active metals.
Claim 6
Dependent Claim
13 words
The composition of claim 4 wherein the particulate solids also include a filler.
Claim 7
Dependent Claim
12 words
The composition of claim 4 wherein the cathodically active metal is zinc.
Claim 8
Dependent Claim
20 words
The composition of claim 5 wherein the vehicle to particulate solids are in a ratio of from 10:90 to 70:30.
Claim 9
Independent Claim
126 words
A method for preparing a single package coating composition which comprises mixing particulate solids with a vehicle and after agitating for at least 0.5 hour in an inert atmosphere packaging the composition, said vehicle consisting essentially of a hydrolyzed alkyl polysilicate having a hydrolysis level of from 50 to 65 percent and zinc chloride in an amount of from 3 to 5.5 percent by weight based on the total weight of the hydrolysate, said hydrolysate is obtained by hydrolyzing the alkyl polysilicate containing about 40 percent SiO 2 with from about 0.08 to about 0.21 mole of water per mole of alkoxy present on the alkyl polysilicate at a pH of from 1.0 to 6.5 in the presence of an organic solvent to form the hydrolysate.
Claim 10
Independent Claim
126 words
A method for preparing a single package coating composition which comprises mixing particulate solids with a vehicle and after agitating for at least 0.5 hour in an inert atmosphere packaging the composition, said vehicle consisting essentially of a hydrolyzed alkyl polysilicate having a hydrolysis level of from 50 to 65 percent and zinc chloride in an amount of from 3 to 5.5 percent by weight based on the total weight of the hydrolysate, said hydrolysate is obtained by hydrolyzing the alkyl polysilicate containing about 40 percent SiO 2 with from about 0.08 to about 0.21 mole of water per mole of alkoxy present on the alkyl polysilicate at a pH of from 1.0 to 6.5 in the presence of an organic solvent to form the hydrolysate.
Claim 11
Dependent Claim
13 words
The method of claim 8 wherein the particulate solids are cathodically active metals.
Claim 12
Dependent Claim
12 words
The method of claim 9 wherein the cathodically active metal is zinc.
Claim 13
Dependent Claim
20 words
The method of claim 8 wherein the vehicle to particulate solids is in a ratio of from 10:90 to 70:30.
Claim 14
Dependent Claim
21 words
The method of claim 9 wherein the vehicle to cathodically active metal is in a ratio of from 10:90 to 50:50.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |