US3144377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchrorage of coatings on cellulosic materials through an alkaline resinfree material
Assignee: EIDP Inc
•
Filing: 1960-10-27
•
Granted: 1964-08-11
•
Expires: 1980-10-27
Abstract
No abstract record available.
Inventors
- 👤 Eastes Frank Elisha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:36
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/052; C08J7/12; C08J2301/00; C08J2301/06; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A LAMINATED MOISTUREPROOF FILM WHICH COMPRISES LAMINAE OF HYDROPHILIC CELLULOSE FILM TREATED ON THEIR SURFACES WITH AN ALKALINE MATERIAL SOLUBLE IN AQUEOUS MEDIUM SELECTED FROM THE GROUP CONSISTING OF: (1) A HYDROXIDE OF A METAL HAVING AN IONIZATION CONSTANT OF AT LEAST 10**-11, (2) A METAL SALT OF AN AMPHOTERIC METAL HYDROXIDE HAVING A HYDROLYSIS CONSTANT OF AT LEAST 10**-11, (3) A SALT OF AN ACID, SAID SALT HAVING A HYDROLYSIS CONSTANT OF AT LEAST 10**-11, AND MIXTURES THEREOF; AND HAVING BETWEEN THE LAMINAE A POLYMERIC LAYER OF A COPOLYMER OF FROM 30 TO 97% VINYLIDENE CHLORIDE, FROM 0.1 TO 25% OF AN ACIDIC ETHYLENIC COMPOUND, AND FROM ABOUT 3 TO 40% OF ANOTHER POLYMERIZABLE MONOOLEFINIC MONOMER, WHIEREIN THE RATIO OF THE TOTAL ALKALINITY, AFTER TREATMENT, OF SAID LAMINAE TO THE TOTAL ACIDITY OF SAID COPOLYMER IS AT LEAST 1.
Claim 2
Dependent Claim
140 words
A LAMINATED MOISTUREPROOF FILM WHICH COMPRISES LAMINAE OF HYDROPHILIC CELLULOSE FILM TREATED ON THEIR SURFACES WITH AN ALKALINE MATERIAL SOLUBLE IN AQUEOUS MEDIUM SELECTED FROM THE GROUP CONSISTING OF: (1) A HYDROXIDE OF A METAL HAVING AN IONIZATION CONSTANT OF AT LEAST 10**-11, (2) A METAL SALT OF AN AMPHOTERIC METAL HYDROXIDE HAVING A HYDROLYSIS CONSTANT OF AT LEAST 10**-11, (3) A SALT OF AN ACID, SAID SALT HAVING A HYDROLYSIS CONSTANT OF AT LEAST 10**-11, AND MIXTURES THEREOF; AND HAVING BETWEEN THE LAMINAE A POLYMERIC LAYER OF A COPOLYMER OF FROM 30 TO 97% VINYLIDENE CHLORIDE, FROM 0.1 TO 25% OF AN ACIDIC ETHYLENIC COMPOUND, AND FROM ABOUT 3 TO 40% OF ANOTHER POLYMERIZABLE MONOOLEFINIC MONOMER, WHIEREIN THE RATIO OF THE TOTAL ALKALINITY, AFTER TREATMENT, OF SAID LAMINAE TO THE TOTAL ACIDITY OF SAID COPOLYMER IS AT LEAST 1.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |