Patent US3156608A successfully refreshed from Google Patents.
US3156608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding of thermoplastic materials
Assignee: Celanese Corp
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Filing: 1960-07-28
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Granted: 1964-11-10
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Expires: 1980-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jack M Kamins
- 👤 Seymour R Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:20
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; B; B32; B32B; B32B27/00; C08J5/00; C08J5/12; C08J5/124; C08J5/125; C09; C09J; C09J4/00; C08J2301/00; C08J2301/08; C08J2301/10; C08J2301/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
118 words
A METHOD OF BONDING CELLULOSE ACETATE SHEETS ONE TO THE OTHER, WHICH COMPRISES APPLYING TO THE SURFACES TO BE BONDED A DISPERSION OF PARTICLES OF CELLULOSE ACETATE IN BETWEEN ABOUT 7 AND 24 PARTS BY WEIGHT OF A SPRAYABLE DISPERSION MEDIUM PER PART OF PARTICLES, SAID PARTICLES HAVING A SIZE BETWEEN ABOUT 1.0 AND 50 MICRONS, SAID MEDIUM COMPRISING ABOUT 2 TO 12 PARTS OF A NON-VOLATILE PLASTICIZER FOR CELLULOSE ACETATE, ABOUT 2 TO 18 PARTS OF A VOLATILE NON-SOLVENT FOR CELLULOSE ACETATE, AND ABOUT 1 TO 12 PARTS OF A VOLATILE SOLVENT FOR CELLULOS ACETATE, AND PRESSING SAID SURFACES TOGETHER TO PRODUCE A LAMINATED ARTICLE CHARACTERIZED BY ABSENCE OF DISTORTION ALONG THE BONDED SURFACE OF THE SHEETS.
Claim 2
Independent Claim
118 words
A METHOD OF BONDING CELLULOSE ACETATE SHEETS ONE TO THE OTHER, WHICH COMPRISES APPLYING TO THE SURFACES TO BE BONDED A DISPERSION OF PARTICLES OF CELLULOSE ACETATE IN BETWEEN ABOUT 7 AND 24 PARTS BY WEIGHT OF A SPRAYABLE DISPERSION MEDIUM PER PART OF PARTICLES, SAID PARTICLES HAVING A SIZE BETWEEN ABOUT 1.0 AND 50 MICRONS, SAID MEDIUM COMPRISING ABOUT 2 TO 12 PARTS OF A NON-VOLATILE PLASTICIZER FOR CELLULOSE ACETATE, ABOUT 2 TO 18 PARTS OF A VOLATILE NON-SOLVENT FOR CELLULOSE ACETATE, AND ABOUT 1 TO 12 PARTS OF A VOLATILE SOLVENT FOR CELLULOS ACETATE, AND PRESSING SAID SURFACES TOGETHER TO PRODUCE A LAMINATED ARTICLE CHARACTERIZED BY ABSENCE OF DISTORTION ALONG THE BONDED SURFACE OF THE SHEETS.
Claim 3
Dependent Claim
11 words
A LAMINATED ARTILCE AS PRODUCED BY THE METHOD OF CLAIM 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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |