US4533694A
Expired / Lapsed
US
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Formulation for electrodeposition of mica
Assignee: General Electric Co
•
Filing: 1984-11-19
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Granted: 1985-08-06
•
Expires: 2004-11-19
Abstract
Abstract A composition for electrodeposition of an insulating mica coating onto a conducting substrate is disclosed. The composition consists essentially of mica, a water soluble anionic resin binder, an electrolyte and a polar solvent.
Inventors
- 👤 Richard K. Elton
- 👤 William R. Schultz, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:09
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/448; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
41 words
An electrodeposition composition consisting essentially in weight percent of 5 to 35% of particulated mica, 0.2 to 2% of a water soluble anionic resin binder as calculated in resin solids, 0.001 to 0.20% of electrolyte, and the remainder a polar solvent.
Claim 2
Dependent Claim
41 words
An electrodeposition composition consisting essentially in weight percent of 5 to 35% of particulated mica, 0.2 to 2% of a water soluble anionic resin binder as calculated in resin solids, 0.001 to 0.20% of electrolyte, and the remainder a polar solvent.
Claim 3
Dependent Claim
19 words
The composition of claim 1 wherein said mica has a particle size of 88 to 1,000 mesh U.S. Standard.
Claim 4
Dependent Claim
34 words
The composition of claim 2 consisting essentially in weight percent of 10 to 16% mica, 0.5 to 1.5% in resin solids of binder, 0.02 to 0.05% of electrolyte, and the remainder a polar solvent.
Claim 5
Dependent Claim
14 words
The composition of claims 1 or 3 wherein said polar solvent is substantially water.
Claim 6
Dependent Claim
13 words
The composition of claim 4 wherein said binder is a water soluble polyester.
Claim 7
Dependent Claim
23 words
The composition of claims 1 or 3 wherein said mica is a member selected from the group consisting of muscovite, phlogopite and fluorophlogopite.
Claim 8
Dependent Claim
34 words
The composition of claims 1 or 3 wherein said electrolytes are selected from the group consisting of ammonium nitrate, sodium chloride, potassium chloride, sodium phosphate, aluminum acetate, sodium sulfate, ammonium sulfate, and mixtures thereof.
Claim 9
Dependent Claim
24 words
The composition of claim 4 consisting in weight percent of about 11.0 mica, 0.83% in resin solids of binder, 0.024% electrolyte and 86.89% water.
Claim 10
Dependent Claim
32 words
The composition of claim 1 in which the water soluble anionic resin binder is selected from the group consisting of polyesters, epoxyesters, acrylics, amide-imides, carboxy-terminated butadiene/acrylonitriles, carboxy-terminated polybutadiene resins and mixtures thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |