US3124729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing surfaces com-
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:05
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/123; B; B29; B29C; B29C59/00; B29C59/10; B29D; B29D7/00; B41; B41M; B41M1/00; B41M1/26; B41M1/30; B41M1/305; B29C71/00; B29K; B29K2023/00; B29K2995/00; B29K2995/0037; B29K2995/0041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PROCESS FOR INCREASING THE RECEPTIVITY TO PRINTING INKS OF SHEET MATERIAL FORMED OF A POLYPROPYLENE CONSISTING PREVAILINGLY OF ISOTATIC MACROMOLECULES AND COMPRISING THE STEPS OF SUPPORTING THE SHEET MATERIAL ON A GROUNDED METAL ROLL, MAINTAINING A BRUSH ELECTRODE AT A VOLTAGE LOWER THAN THE VOLTAGE WHICH WOULD CAUSE DISRUPTION OF THE SHEET MATERIAL, AND PASSING THE SHEET MATERIAL UNDER THE BRUSH ELECTRODE IN CONTACT THEREWITH AT A CONTROLLED SPEED TO SUBJECT THE SURFACE TO A CONTINUOUS NON-DISRUPTING ELECTRICAL CHARGE WHEREBY THE RECEPTIVITY OF THE POLYPROPYLENE AT SAID SURFACE TO PRINTING INK IS INCREASED.
Claim 2
Dependent Claim
94 words
A PROCESS FOR INCREASING THE RECEPTIVITY TO PRINTING INKS OF SHEET MATERIAL FORMED OF A POLYPROPYLENE CONSISTING PREVAILINGLY OF ISOTATIC MACROMOLECULES AND COMPRISING THE STEPS OF SUPPORTING THE SHEET MATERIAL ON A GROUNDED METAL ROLL, MAINTAINING A BRUSH ELECTRODE AT A VOLTAGE LOWER THAN THE VOLTAGE WHICH WOULD CAUSE DISRUPTION OF THE SHEET MATERIAL, AND PASSING THE SHEET MATERIAL UNDER THE BRUSH ELECTRODE IN CONTACT THEREWITH AT A CONTROLLED SPEED TO SUBJECT THE SURFACE TO A CONTINUOUS NON-DISRUPTING ELECTRICAL CHARGE WHEREBY THE RECEPTIVITY OF THE POLYPROPYLENE AT SAID SURFACE TO PRINTING INK IS INCREASED.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |