Patent US3296335A successfully refreshed from Google Patents.
US3296335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for providing electrically insulated conductors and coating composition for same
Assignee: Chemische Werke Witten GmbH
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Filing: 1962-10-30
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Granted: 1967-01-03
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Blaschke Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:31
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; C; C09; C09D; C09D167/00; H01B1/00; H01B3/308; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A METHOD OF MANUFACTURING ELECTRICALLY INSULATED CONDUCTORS BY COATING THE SAME WITH AN AINSUALTING COMPOSTITION, COMPRISING PASSING THE ELECTRIC CONDUCTOR THROUGH A BATH OF A COATING COMPOSITION COMPRISING (A) APPROXIMATELY 5 TO 60 PARTS BY WEIGHT OF A LINEAR HYDROXYPOLYESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID AND MIXTURES THEREOF WITH ISOPHTHALIC ACID AND ETHYLENE GLYCOL, SAID LINEAR HYDROXYPOLESTER HAVING A VISCOSITY NUMBER ABOVE ABOUT 0.5, (B) APPROXIMATELY 95 TO 40 PARTS BY WEIGHT OF A POLYESTER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID, ISOPHTHALIC ACID, MIXTURES OF TEREPHTHALIC AND ISOPHTHALIC ACIDS, AND DERIVATIVES OF ISOPHTHALIC AND TEREPTHALIC ACID HAVING A RADICAL DISPOSED ON AT LEAST ONE OF THE CARBONYL GROUPS WHICH IS EASILY REPLACEABLY BY THE ALKOXY GROUP OF AN ALCOHOL, ETHYLENE GLYCOL AND A SATURATED POLY-ALCOHOL CONTAINING AT LEAST 3 HYDROXYL GROUPS, SAID POLYESTER CONTAINING TERMINAL- AND CHAIN-POSITIONED HYDROXYL GROUPS, AND SUBSEQUENTLY PASSING THE COATED CONDUCTOR THROUGH A HARDENING ZONE OF APPROXIMATELY 3 M. IN LENGTH MAINTAINED AT A TEMPERATURE OF AT LEAST 380*C. AT A RATE OF APPROXIMATELY 4 TO 10 M./MINUTE.
Claim 2
Independent Claim
183 words
A METHOD OF MANUFACTURING ELECTRICALLY INSULATED CONDUCTORS BY COATING THE SAME WITH AN AINSUALTING COMPOSTITION, COMPRISING PASSING THE ELECTRIC CONDUCTOR THROUGH A BATH OF A COATING COMPOSITION COMPRISING (A) APPROXIMATELY 5 TO 60 PARTS BY WEIGHT OF A LINEAR HYDROXYPOLYESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID AND MIXTURES THEREOF WITH ISOPHTHALIC ACID AND ETHYLENE GLYCOL, SAID LINEAR HYDROXYPOLESTER HAVING A VISCOSITY NUMBER ABOVE ABOUT 0.5, (B) APPROXIMATELY 95 TO 40 PARTS BY WEIGHT OF A POLYESTER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID, ISOPHTHALIC ACID, MIXTURES OF TEREPHTHALIC AND ISOPHTHALIC ACIDS, AND DERIVATIVES OF ISOPHTHALIC AND TEREPTHALIC ACID HAVING A RADICAL DISPOSED ON AT LEAST ONE OF THE CARBONYL GROUPS WHICH IS EASILY REPLACEABLY BY THE ALKOXY GROUP OF AN ALCOHOL, ETHYLENE GLYCOL AND A SATURATED POLY-ALCOHOL CONTAINING AT LEAST 3 HYDROXYL GROUPS, SAID POLYESTER CONTAINING TERMINAL- AND CHAIN-POSITIONED HYDROXYL GROUPS, AND SUBSEQUENTLY PASSING THE COATED CONDUCTOR THROUGH A HARDENING ZONE OF APPROXIMATELY 3 M. IN LENGTH MAINTAINED AT A TEMPERATURE OF AT LEAST 380*C. AT A RATE OF APPROXIMATELY 4 TO 10 M./MINUTE.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |