US3057752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating flexible, non-fibrous organic substrates with an aged aqueous dispersion of particles of a copolymer of vinylidene chloride
Assignee: EIDP Inc
•
Filing: 1958-12-22
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Granted: 1962-10-09
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Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Edward R Covington
- 👤 John W Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:47
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE PROCESS WHICH CONSISTS ESSENTIALLY IN (1) COATING A FLEXIBLE, NON-FIBROUS BASE SHEET OF ORGANIC POLYMERIC MATERIAL WITH AN AQUEOUS DISPERSION OF PARTICLES OF A COPOLYMER OF VINYLIDENE CHLORIDE AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING AT LEAST 92.5 MOL PERCENT OF VINYLIDENE CHLORIDE, SAID DISPERSED COPOLYMER PARTICLES BEING IN SUCH CONDITION THAT AN INFRARED ABSORPTION BAND AT ABOUT 13.3 MICRONS APPEARS WITHIN THE TIME PERIOD OF NOT LESS THAN 6 MINUTS AND NOT GREATER HAN 35 MINUTES AFTER CASTING SAID DISPERSION INTO A SELF-SUPPORTING FILM; (2) HEATING THE COATED BASE SHEET TO COALESCE THE COATING AND DRY THE COATED SHEET TO A MOISTURE CONTENT NOT GREATER THAN 14% BY WEIGHT; AND (3) SUBSTANTIALLY IMMEDIATELY COOLING THE DRIDE, COATED BASE SHEET TO A TEMPERATURE NO HIGHER THAN 25*C.
Claim 2
Dependent Claim
133 words
THE PROCESS WHICH CONSISTS ESSENTIALLY IN (1) COATING A FLEXIBLE, NON-FIBROUS BASE SHEET OF ORGANIC POLYMERIC MATERIAL WITH AN AQUEOUS DISPERSION OF PARTICLES OF A COPOLYMER OF VINYLIDENE CHLORIDE AND AT LEAST ONE OTHER MONO-OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING AT LEAST 92.5 MOL PERCENT OF VINYLIDENE CHLORIDE, SAID DISPERSED COPOLYMER PARTICLES BEING IN SUCH CONDITION THAT AN INFRARED ABSORPTION BAND AT ABOUT 13.3 MICRONS APPEARS WITHIN THE TIME PERIOD OF NOT LESS THAN 6 MINUTS AND NOT GREATER HAN 35 MINUTES AFTER CASTING SAID DISPERSION INTO A SELF-SUPPORTING FILM; (2) HEATING THE COATED BASE SHEET TO COALESCE THE COATING AND DRY THE COATED SHEET TO A MOISTURE CONTENT NOT GREATER THAN 14% BY WEIGHT; AND (3) SUBSTANTIALLY IMMEDIATELY COOLING THE DRIDE, COATED BASE SHEET TO A TEMPERATURE NO HIGHER THAN 25*C.
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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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |