US2976168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying antihalation layers to polyester film
Assignee: Eastman Kodak Co
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Filing: 1959-03-06
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Granted: 1961-03-21
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Expires: 1979-03-06
Abstract
No abstract record available.
Inventors
- 👤 Crayton B Thompson
- 👤 George W Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:32
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/835; G03C1/91; G03C1/93
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
THE PROCESS OF APPLYING AN ANTIHALATION LAYER TO SURFACE OF POLYESTER SHEETING WHICH SHEETING IN ITS MANUFACTURE HAS BEEN COATED WITH A LATEX, ORIENTED AND CRYSTALLIZED, WHICH COMPRISES PREPARING A COATING SOLUTION CONSISTING OF AT LEAST 90% OF WATER AND CONTAINING ACRYLATEACRYLIC ACID POLYMER HAVING SATURATED LOWER ALKYL GROUPS, AMMONIUM HYDROXIDE, A COLORING INGREDIENT AND A SPREADING AGENT, APPLYING THIS AQUEOUS COATING SOLUTION TO THE SURFACE OF SAID POLYESTER FILM WHICH CARRIES A LATEX COATING UPON WHICH THE ANTIHALATION LAYER IS DESIRED, AND DRYING THE COATING SUFFICIENTLY TO VOLATIZE OFF SUBSTANTIALLY ALL OF THE WATER AND THE AMMONIUM CONSTITUENT.
Claim 2
Dependent Claim
99 words
THE PROCESS OF APPLYING AN ANTIHALATION LAYER TO SURFACE OF POLYESTER SHEETING WHICH SHEETING IN ITS MANUFACTURE HAS BEEN COATED WITH A LATEX, ORIENTED AND CRYSTALLIZED, WHICH COMPRISES PREPARING A COATING SOLUTION CONSISTING OF AT LEAST 90% OF WATER AND CONTAINING ACRYLATEACRYLIC ACID POLYMER HAVING SATURATED LOWER ALKYL GROUPS, AMMONIUM HYDROXIDE, A COLORING INGREDIENT AND A SPREADING AGENT, APPLYING THIS AQUEOUS COATING SOLUTION TO THE SURFACE OF SAID POLYESTER FILM WHICH CARRIES A LATEX COATING UPON WHICH THE ANTIHALATION LAYER IS DESIRED, AND DRYING THE COATING SUFFICIENTLY TO VOLATIZE OFF SUBSTANTIALLY ALL OF THE WATER AND THE AMMONIUM CONSTITUENT.
Claim 3
Dependent Claim
66 words
AS AN ARTICLE OF MANUFACTURE, A PRODUCT COMPRISED OF A POLYESTER SHEET, SAID SHEET HAVING LATEX COATING THEREON SAID LATEX COATING CARRYING A LAYER A LATEX COATING CONSISTING OF AN ACRYLATE-ACRYLIC ACID POLYMER HAVING SATURATED LOWER ALKYL GROUPS, SAID POLYMER CONTAINING CARBON PARTICLES OF A SIZE LESS THAN 30 MU, SAID COATING BEING CHARACTERIZED IN THAT IT IS SUBSTANTIALLY WATER INSOLUBLE BUT SOLUBLE IN PHOTOGRAPHIC DEVELOPER.
Claim 4
Dependent Claim
66 words
AS AN ARTICLE OF MANUFACTURE, A PRODUCT COMPRISED OF A POLYESTER SHEET, SAID SHEET HAVING LATEX COATING THEREON SAID LATEX COATING CARRYING A LAYER A LATEX COATING CONSISTING OF AN ACRYLATE-ACRYLIC ACID POLYMER HAVING SATURATED LOWER ALKYL GROUPS, SAID POLYMER CONTAINING CARBON PARTICLES OF A SIZE LESS THAN 30 MU, SAID COATING BEING CHARACTERIZED IN THAT IT IS SUBSTANTIALLY WATER INSOLUBLE BUT SOLUBLE IN PHOTOGRAPHIC DEVELOPER.
References Cited (Backward Citations)
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US2835609A
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US2755186A
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US2879178A
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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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |