Patent US3085901A successfully refreshed from Google Patents.
US3085901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating regenerated cellulose film with subcoat of cellulose nitrate and thermosetting resin and topcoat of vinylidene chloride copolymer
Assignee: EIDP Inc
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Filing: 1959-04-28
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Granted: 1963-04-16
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Expires: 1979-04-28
Abstract
No abstract record available.
Inventors
- 👤 Lindsey William Bryan
- 👤 Vanderhorst Philip John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:27
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; B05D7/04; B05D7/50; B05D7/52; B05D7/54; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C08J2301/00; C08J2301/06; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR PREPARING FILM WHICH COMPRISES SUBCOATING AT LEAST ONE SURFACE OF A NON-FIBROUS REGENERATED CELLULOSE BASE FILM WITH A SOLUTION IN AN ORGANIC SOLVENT OF A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF CELLULOSE ESTERS AND CELLULOSE ETHERS AND AN ORGANIC SOLVENT-SOLUBLE THERMOSETTING RESIN, THE CELLULOSE DERIVATIVE COMPRISING 25-100% AND THE THERMOSETTING RESIN COMRISING UP TO 75% OF THE DISSOLVED SOLIDS IN SAID SOLUTION, THE SOLIDS COATED ON SAID SURFACE BEING SUFFICIENT TO PROVIDE A DRIED SUBCOATING OF 0.2-0.6 GRAM/SQUARE METER OF SAID SURFACE; DRYING THE SUBCOATED FILM; THEREAFTER, TOP-COATING THE SUBCOATED FILM WITH AN AQUEOUS DISPERSION OF A POLYMER OBTAINED FROM 80-97% VINYLIDENE CHLORIDE AND 3-20% OF AT LEAST ONE OTHER POLYMERIZABLE MONO-OLEFINIC MONOMER COPOLYMERIZABLE WITH VINYLIDENE CHLORIDE; SMOOTHING SAID TOP-COATING; AND DRYING THE TWICE-COATED FILM.
Claim 2
Dependent Claim
129 words
A PROCESS FOR PREPARING FILM WHICH COMPRISES SUBCOATING AT LEAST ONE SURFACE OF A NON-FIBROUS REGENERATED CELLULOSE BASE FILM WITH A SOLUTION IN AN ORGANIC SOLVENT OF A CELLULOSE DERIVATIVE OF THE CLASS CONSISTING OF CELLULOSE ESTERS AND CELLULOSE ETHERS AND AN ORGANIC SOLVENT-SOLUBLE THERMOSETTING RESIN, THE CELLULOSE DERIVATIVE COMPRISING 25-100% AND THE THERMOSETTING RESIN COMRISING UP TO 75% OF THE DISSOLVED SOLIDS IN SAID SOLUTION, THE SOLIDS COATED ON SAID SURFACE BEING SUFFICIENT TO PROVIDE A DRIED SUBCOATING OF 0.2-0.6 GRAM/SQUARE METER OF SAID SURFACE; DRYING THE SUBCOATED FILM; THEREAFTER, TOP-COATING THE SUBCOATED FILM WITH AN AQUEOUS DISPERSION OF A POLYMER OBTAINED FROM 80-97% VINYLIDENE CHLORIDE AND 3-20% OF AT LEAST ONE OTHER POLYMERIZABLE MONO-OLEFINIC MONOMER COPOLYMERIZABLE WITH VINYLIDENE CHLORIDE; SMOOTHING SAID TOP-COATING; AND DRYING THE TWICE-COATED FILM.
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |