Patent US3333032A successfully refreshed from Google Patents.
US3333032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated polymer surfaces of shaped articles
Assignee: Union Carbide Corp
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Filing: 1963-11-12
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Granted: 1967-07-25
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Barry L Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:09
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/123; B; B29; B29C; B29C51/00; B29C59/00; B29C59/10; B29C71/00; B29C71/02; Y; Y10; Y10S; Y10S425/00; Y10S425/20; Y10S425/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR THE MANUFACTURE OF SHAPED THERMOPLASTIC ARTICLES WHICH ARE RECEPTIVE TO INKS AND COATINGS UPON EMERGENCE FROM A FORMING OPERATION COMPRISING THE STEPS OF ELECTROSTATICALLY TREATING, UNDER HIGH VOLTAGE STRESS SUFFICIENT TO INITIATE CORONA DISCHARGE, AT LEAST ONE SURFACE OF A NORMALLY SOLID THERMOPLASTIC POLYMER SHEET IN A HEATED CONDITION SUBSTANTIALLY ABOVE ROOM TEMPERATURE BUT BELOW THE NORMAL THERMOFORMING TEMPERATURE OF SAID THERMOPLASTIC, AND IMMEDIATELY THEREAFTER HEATING SAID TREATED THERMOPLASTIC SURFACE TO A NORMAL THERMOFORMING TEMPERATURE AND SUBSTANTIALLY DEFORMING THE THUS TREATED SHEET IN AN OPEN MOLD INTO THE DESIRED END SHAPE OF THE THERMOPLASTIC ARTICLE.
Claim 2
Dependent Claim
98 words
A PROCESS FOR THE MANUFACTURE OF SHAPED THERMOPLASTIC ARTICLES WHICH ARE RECEPTIVE TO INKS AND COATINGS UPON EMERGENCE FROM A FORMING OPERATION COMPRISING THE STEPS OF ELECTROSTATICALLY TREATING, UNDER HIGH VOLTAGE STRESS SUFFICIENT TO INITIATE CORONA DISCHARGE, AT LEAST ONE SURFACE OF A NORMALLY SOLID THERMOPLASTIC POLYMER SHEET IN A HEATED CONDITION SUBSTANTIALLY ABOVE ROOM TEMPERATURE BUT BELOW THE NORMAL THERMOFORMING TEMPERATURE OF SAID THERMOPLASTIC, AND IMMEDIATELY THEREAFTER HEATING SAID TREATED THERMOPLASTIC SURFACE TO A NORMAL THERMOFORMING TEMPERATURE AND SUBSTANTIALLY DEFORMING THE THUS TREATED SHEET IN AN OPEN MOLD INTO THE DESIRED END SHAPE OF THE THERMOPLASTIC ARTICLE.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |