US3136655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating polyethylene terephthalate film, coated article and composition therefor
Assignee: EIDP Inc
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Filing: 1960-04-22
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Granted: 1964-06-09
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Expires: 1980-04-22
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:52
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/046; C08J7/052; C08J2367/00; C08J2367/02; C08J2467/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN ORIENTED POLYETHYLENE TEREPHTHALATE FILM HAVING AT LEAST ONE SURFACE COATED WITH A COMPOSITION COMPRISING AT LEAST 80% OF AN ORDERED COPOLYMER OF AT LEAST THREE COMPONENTS, THE FIRST COMPONENT BEING A GLYCOL HAVING THE FORMULA HO(CH2)AOH WHEREIN "A" IS AN INTEGER HAVING A VLAUE OF 2-10, THE SECOND COMPONENT BEING AN ACIDIC COMPONENT SELECTED FROM THE GROUP CONSISTING OF AROMATIC DIBASIC ACIDS AND ESTERS OF AROMATIC DIBASIC ACIDS, AND THE THIRD COMPONENT BEING AT LEAST ONE DIFUNCTIONAL POLYETHER HAVING THE FORMULA HO(RO)NH WHEREIN R IS AN ALKYLENE RADICAL HAVING 2-4 CARBON ATOMS AND N IS AN INTEGER HAVING A VLALUE SUFFICIENT TO PROVIDE A MOLECULAR WEIGHT FOR THE POLYETHER OF 700-6000, THE POLYETHER-POLYESTER UNITS FROM SAID POLYETHER IN SAID POLYMER REPRESENTING 60%-80% BY WEIGHT OF SAID POLYMER, SAID COATING COMPOSITION ALSO CONTAINING 2% TO 20% OF A FATTY ACID AMIDE HAVING 12-18 CARBON ATOMS.
Claim 2
Dependent Claim
145 words
AN ORIENTED POLYETHYLENE TEREPHTHALATE FILM HAVING AT LEAST ONE SURFACE COATED WITH A COMPOSITION COMPRISING AT LEAST 80% OF AN ORDERED COPOLYMER OF AT LEAST THREE COMPONENTS, THE FIRST COMPONENT BEING A GLYCOL HAVING THE FORMULA HO(CH2)AOH WHEREIN "A" IS AN INTEGER HAVING A VLAUE OF 2-10, THE SECOND COMPONENT BEING AN ACIDIC COMPONENT SELECTED FROM THE GROUP CONSISTING OF AROMATIC DIBASIC ACIDS AND ESTERS OF AROMATIC DIBASIC ACIDS, AND THE THIRD COMPONENT BEING AT LEAST ONE DIFUNCTIONAL POLYETHER HAVING THE FORMULA HO(RO)NH WHEREIN R IS AN ALKYLENE RADICAL HAVING 2-4 CARBON ATOMS AND N IS AN INTEGER HAVING A VLALUE SUFFICIENT TO PROVIDE A MOLECULAR WEIGHT FOR THE POLYETHER OF 700-6000, THE POLYETHER-POLYESTER UNITS FROM SAID POLYETHER IN SAID POLYMER REPRESENTING 60%-80% BY WEIGHT OF SAID POLYMER, SAID COATING COMPOSITION ALSO CONTAINING 2% TO 20% OF A FATTY ACID AMIDE HAVING 12-18 CARBON ATOMS.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |