US3249482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated structure and method
Assignee: BANK OF LOUISVILLE ROYAL BANK
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Filing: 1963-06-26
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Granted: 1966-05-03
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Paul M Gilfillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:47
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24752; Y10T428/24802; Y10T428/24851; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A METHOD FOR PRODUCING A LAMINATED PACKAGING MATERIAL COMPRISING CONTINUOUSLY ADVANCING A FIRST FILM OF REGENERATED CELLULOSE HAVING A; VINYLIDENE CHLORIDE INTERPOLYMER HAVING A VINYLIDENE CHLORIDE CONTENT FROM 50 PERCENT OF 95 PERCENT AND A FUSION POINT OF AT LEAST 270* F.; COATINGS ON BOTH OF ITS MAJOR SURFACES INTO A COMPRESSION ZONE, CONTINUOUSLY ADVANCING A SECOND FILM OF REGENERATED CELLULOSE HAVING SAID ABOVE MENTIONED COATINGS ON BOTH OF ITS MAJOR SURFACES INTO THE COMPRESSION ZONE AND INTO JUXTAPOSITION RELATIVE TO THE FIRST FILM, CAUSING THE COATING ON THE FIRST FILM TO BECOME ADHERED TO A COATING OF THE SECOND FILM WITHOUT THE AID OF A SOLVENT BY HEATING THE FILMS TO A TEMPERATURE BETWEEN APPROXIMATELY 190*F. AND APPROXIMATELY 200*F., COMPRESSING THE JUXTAPOSED SHEETS IN THE COMPRESSION ZONE UNDER A PRESSURE ABOVE APPROXIMATELY 600 P.S.I. AND LESS THAN APPROXIMATELY 1000 P.S.I. TO FORCE THE ADJACENT COATINGS OF THE SHEETS INTO INTIMATE BONDING CONTACT TO CAUSE ADHESION THEREBETWEEN AND TO FORM THE FIRST AND SECOND FILMS INTO A CONTINUOUS LAMINATE, AND COOLING THE RESULTING LAMINATE.
Claim 2
Independent Claim
174 words
A METHOD FOR PRODUCING A LAMINATED PACKAGING MATERIAL COMPRISING CONTINUOUSLY ADVANCING A FIRST FILM OF REGENERATED CELLULOSE HAVING A; VINYLIDENE CHLORIDE INTERPOLYMER HAVING A VINYLIDENE CHLORIDE CONTENT FROM 50 PERCENT OF 95 PERCENT AND A FUSION POINT OF AT LEAST 270* F.; COATINGS ON BOTH OF ITS MAJOR SURFACES INTO A COMPRESSION ZONE, CONTINUOUSLY ADVANCING A SECOND FILM OF REGENERATED CELLULOSE HAVING SAID ABOVE MENTIONED COATINGS ON BOTH OF ITS MAJOR SURFACES INTO THE COMPRESSION ZONE AND INTO JUXTAPOSITION RELATIVE TO THE FIRST FILM, CAUSING THE COATING ON THE FIRST FILM TO BECOME ADHERED TO A COATING OF THE SECOND FILM WITHOUT THE AID OF A SOLVENT BY HEATING THE FILMS TO A TEMPERATURE BETWEEN APPROXIMATELY 190*F. AND APPROXIMATELY 200*F., COMPRESSING THE JUXTAPOSED SHEETS IN THE COMPRESSION ZONE UNDER A PRESSURE ABOVE APPROXIMATELY 600 P.S.I. AND LESS THAN APPROXIMATELY 1000 P.S.I. TO FORCE THE ADJACENT COATINGS OF THE SHEETS INTO INTIMATE BONDING CONTACT TO CAUSE ADHESION THEREBETWEEN AND TO FORM THE FIRST AND SECOND FILMS INTO A CONTINUOUS LAMINATE, AND COOLING THE RESULTING LAMINATE.
References Cited (Backward Citations)
US2306046A
Cited
US2354855A
Cited
US2504417A
Cited
US2474896A
Cited
US2453052A
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GB854678A
Cited
US3037868A
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |