US3676403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of insulating coatings on electric conductors
Assignee: Axalta Coating Systems Germany GmbH and Co KG
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Filing: 1969-09-03
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Granted: 1972-07-11
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Expires: 1989-09-03
Abstract
Abstract A process and solution for the production of insulated coatings on electric conductors, such coating solution containing a catalytic amount of a reaction product of dicyano diamide with hydrazine, the reaction product being prepared at temperatures between room temperature and about 280* C.
Inventors
- 👤 Arnold Dobbelstein
- 👤 Hans-Dieter Hille
- 👤 Anneliese Geb Koziolek Momm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/307; H01B3/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
40 words
Lacquer solutions as claimed in claim 1, further comprising a member selected from the group consisting of an estification catalyst and polyester additives selected from the group consisting of esters of zirconic or titanic acid, metal salts, and metal driers.
Claim 2
Dependent Claim
28 words
a catalytic amount of a reaction product of dicyano diamide with hydrazine, said reaction product being prepared at a temperature between room temperature and about 280* C, and
Claim 3
Dependent Claim
10 words
a solvent suitable to produce solutions of (1) and (2).
Claim 4
Dependent Claim
31 words
Solution as claimed in claim 1, wherein the reaction product is present in an amount of from 0.1 to 5 percent by weight, based on the total weight of the solution.
Claim 5
Dependent Claim
24 words
Solution as claimed in claim 1, wherein the reaction product of dicyano diamide with hydrazine is prepared at temperatures between 30* and 120* C.
Claim 6
Dependent Claim
28 words
Solution as claimed in claim 1, wherein the dicyano diamide and the hydrazine are reacted in a molar ratio of from 0.8 : 1 to 1 : 5.
Claim 7
Dependent Claim
12 words
Solution as claimed in claim 1, wherein the reaction product is 3,5-diamino-1,2,4-triazole.
Claim 8
Dependent Claim
12 words
Solution as claimed in claim 1, wherein the reaction product is pyroguanazole.
Claim 9
Dependent Claim
27 words
Solution as claimed in claim 1, wherein the reaction product of the dicyano diamide and the hydrazine is present in the form of its solution of reaction.
References Cited (Backward Citations)
US3382203A
Cited
US3458480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |