US2699406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating cellophane and the like
Assignee: Akzo Nobel UK PLC
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Filing: 1951-11-03
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Granted: 1955-01-11
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Expires: 1971-11-03
Abstract
No abstract record available.
Inventors
- 👤 Charles M Rosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:25
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/052; C08J2301/00; C08J2475/00; C08J2475/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31953
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
64 words
A PROCESS OF TREATING A NON-FIBROUS HYDROPHILIC CELLULOSIC PELLICLE WHICH COMPRISES IMPREGNATING THE PELLICLE WITH A THERMOSETTING RESIN PRECONDENSATE OF MELAMINE AND FORMALDEHYDE IN THE PRESENCE OF A SMALL AMOUNT OF GLUCONIC ACID, PLASTICIZING AND NEUTRALIZING THE PELLICLE BY PASSING IT THROUGH AN AQUEOUS BATH CONTAINING A PLASTICIZER FOR THE PELLICLE AND A SMALL PROPORTION OF AN ALKALINE COMPOUND OF THE ALKALI METAL GROUP.
Claim 2
Dependent Claim
64 words
A PROCESS OF TREATING A NON-FIBROUS HYDROPHILIC CELLULOSIC PELLICLE WHICH COMPRISES IMPREGNATING THE PELLICLE WITH A THERMOSETTING RESIN PRECONDENSATE OF MELAMINE AND FORMALDEHYDE IN THE PRESENCE OF A SMALL AMOUNT OF GLUCONIC ACID, PLASTICIZING AND NEUTRALIZING THE PELLICLE BY PASSING IT THROUGH AN AQUEOUS BATH CONTAINING A PLASTICIZER FOR THE PELLICLE AND A SMALL PROPORTION OF AN ALKALINE COMPOUND OF THE ALKALI METAL GROUP.
Claim 3
Dependent Claim
15 words
A PROCESS AS DEFINED IN CLAIM 10 IN WHICH THE PELLICLE IS OF REGENERATED CELLULOSE.
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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |