US3052653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic phosphonate containing polyester
Assignee: EIDP Inc
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Filing: 1959-12-21
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Granted: 1962-09-04
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Iannicelli Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/38; C07F9/40; C08; C08G; C08G63/00; C08G63/68; C08G63/692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A SYNTHETIC LINEAR CONDENSATION COPOLYMER CAPABLE OF ORIENTATION ALONG THE FIBRE AXIS WHEN IN FIBER FORM CONSISTING ESSENTIALLY OF A CARBONYLOXY POLYESTER WHEREIN CARBONYLOXY LINKAGES ARE AN INTEGRAL PART OF THE POLYMER CHAIN, WITH THE PROVISO THAT IN AT LEAST ABOUT 75 MOL PERCENT OF THE REPEATING ESTER UNITS IN THE SAID POLYESTER, THERE IS AT LEAST ONE DIVALENT CARBOCYCLIC HYDROCARBON RING CONTAINING AT LEAST SIX CARBON PRESENTS AS AN INTEGRAL PART OF THE POLYMER CHAIN AND HAVING A MINIMUM OF FOUR CARBON ATOMS BETWEEN THE POINTS OF ATTACHMENT OF THE SAID RING IN THE POLYMER CHAIN, TH ESAID POLYESTER HAVING AN INTRINISIC VISCOSITY OF AT LEAST ABOUT 0.2 IN A MIXTURE OF 58.8 PARTS OF PHENOL AND 41.2 PARTS OF TRICHLOROPHENOL AND THE SAID POLYESTER CONTAINING AS AN INTEGRAL PART OF THE POLYMER CHAIN FROM ABOUT 0.5 MOL PERCENTAGE TO ABOUT 10 MOL PERCENTAGE, BASED ON THE ACIDIC COMPONENT OF THE SAID POLYESTER, OF A METALLIC SALT OF THE STRUCTURE
Claim 2
Dependent Claim
161 words
A SYNTHETIC LINEAR CONDENSATION COPOLYMER CAPABLE OF ORIENTATION ALONG THE FIBRE AXIS WHEN IN FIBER FORM CONSISTING ESSENTIALLY OF A CARBONYLOXY POLYESTER WHEREIN CARBONYLOXY LINKAGES ARE AN INTEGRAL PART OF THE POLYMER CHAIN, WITH THE PROVISO THAT IN AT LEAST ABOUT 75 MOL PERCENT OF THE REPEATING ESTER UNITS IN THE SAID POLYESTER, THERE IS AT LEAST ONE DIVALENT CARBOCYCLIC HYDROCARBON RING CONTAINING AT LEAST SIX CARBON PRESENTS AS AN INTEGRAL PART OF THE POLYMER CHAIN AND HAVING A MINIMUM OF FOUR CARBON ATOMS BETWEEN THE POINTS OF ATTACHMENT OF THE SAID RING IN THE POLYMER CHAIN, TH ESAID POLYESTER HAVING AN INTRINISIC VISCOSITY OF AT LEAST ABOUT 0.2 IN A MIXTURE OF 58.8 PARTS OF PHENOL AND 41.2 PARTS OF TRICHLOROPHENOL AND THE SAID POLYESTER CONTAINING AS AN INTEGRAL PART OF THE POLYMER CHAIN FROM ABOUT 0.5 MOL PERCENTAGE TO ABOUT 10 MOL PERCENTAGE, BASED ON THE ACIDIC COMPONENT OF THE SAID POLYESTER, OF A METALLIC SALT OF THE STRUCTURE
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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |