US4485127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enamel having improved coatability and insulated electrical articles produced therefrom
Assignee: Von Roll Isola USA Inc
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Filing: 1982-05-21
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Granted: 1984-11-27
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Expires: 2002-05-21
Abstract
Abstract Improved enamels and insulated electrical articles produced therefrom are described. The enamels are composed of solutions of curable resin which have been modified to contain nylon polymer. This polymer facilitates application of the enamel to a metallic conductor so as to produce an especially smooth and desirable insulation coating.
Inventors
- 👤 Denis R. Pauze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:10
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/306; C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/31504; Y10T428/31551; Y10T428/31562; Y10T428/31678; Y10T428/31681; Y10T428/31688; Y10T428/31721
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
In a method for covering an electrical article with an insulating coating comprising a curable polyesterimide resin dissolved in a solvent, and curing said resin, the improvement which comprises including in said polyesterimide resin dissolved in a solvent a small amount, sufficient to enhance surface coatability and smoothness, of a nylon polymer.
Claim 2
Dependent Claim
52 words
In a method for covering an electrical article with an insulating coating comprising a curable polyesterimide resin dissolved in a solvent, and curing said resin, the improvement which comprises including in said polyesterimide resin dissolved in a solvent a small amount, sufficient to enhance surface coatability and smoothness, of a nylon polymer.
Claim 3
Dependent Claim
24 words
The method according to claim 1, wherein said nylon polymer and said polyesterimide resin are in a weight ratio of from 2:25 to 0.5:25.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein the polyesterimide resin is present in from 15 to 60% by weight of solvent.
Claim 5
Dependent Claim
24 words
The method of claim 1, having the additional step of admixing a poly-functional isocyanate cross-linking agent with said polyesterimide resin dissolved in a solvent.
Claim 6
Dependent Claim
25 words
The method of claim 1, wherein the polyesterimide resin dissolved in a solvent is prepared with glycol, terephthalic acid, trimellitic anhydride, methylene dianiline and tris-2-hydroxyethylisocyanurate.
Claim 7
Dependent Claim
25 words
The method of claim 5, wherein immediately prior to coating the article, 50% phenolic resin is added to the polyesterimide resin dissolved in a solvent.
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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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |