US3639554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making synthetic-resin foils with paper-like characteristics
Assignee: Individual
•
Filing: 1969-07-28
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Granted: 1972-02-01
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Expires: 1989-07-28
Abstract
Abstract A METHOD OF MAKING SYNTHETIC-RESIN FOILS, ESPECIALLY FOILS CONSISTING IN SUBSTANTIAL PART OF A THERMOPLASTIC WHEREIN 5 TO 20% BY WEIGHT OF THE MIXTURE ADAPTED TO BE FORMED INTO THE FOIL IS MADE UP OF A MASTERBATCH OR COLOR CONCENTRATE CONSISTING OF 50 TO 75% BY WEIGHT OF A PIGMENT (ORGANIC OR INORGANIC), PREFERABLY TITANIUM DIOXIDE, AND 50 TO 25% BY WEIGHT OF A WAX, THE LATTER MAKING UP THE REMAINDER OF THE COLOR CONCENTRATE OR MASTERBATCH. THE WAX IS A SATURATED HYDROCARBON HAVING MORE THAN 33 CARBON ATOMS PER MOLECULE (WITH A CARBON NUMBER OF AT LEAST 33) AND AN AVERAGE MOLECULAR WEIGHT OF ABOUT 750.
Inventors
- 👤 Thomas Gough Hutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:30
CPC Classifications
C; C08; C08K; C08K13/00; C08K13/02; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08J2491/00
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |