US3138509A
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: 1964-06-23
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Expires: 1980-07-28
Abstract
No abstract record available.
Inventors
- 👤 Robert P Cox
- 👤 Julia P Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:29
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
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A METHOD OF BONDING CELLULOSE ACETATE SHEETS ONE TO THE OTHER, WHICH COMPRISES SPRAYING THE SURFACES TO BE BONDED WITH AN ORGANOSOL IN THE FORM OF A DISPERSION OF FINELY DIVIDED CELLULOSE ACETATE PARTICLES HAVING AN AVERAGE PARTICLE SIZE NO LARGER THAN ABOUT 15 MICRONS IN A LIQUID PHASE DISPERSION MEDIUM COMPRISING 2 TO 8 PARTS OF PLASTICIZER PER PART OF SAID PARTICLES AND 1 TO 10 PARTS OF PLASTICIZER DILUENT PER PART OF AID PLASTICIZER, SAID PLASTICIZER BEING CHARACTERIZED BY THE ABILITY TO FORM A CLEAR SOLUTION CONTAINING 10% OF ITS WEIGHT OF SAID PARTICLES AT ROOM TEMPERATURE WITH AGITATION WITHIN ABOUT 5 HOURS WHEN SAID PARTICLES HAVE A MESH SIZE OF ABOUT 16, SAID DISPERSION MEDIUM COMPRISING SAID PLASTICIZER AND SAID DILUENT BEING PRESENT IN AN AMOUNT BETWEEN 4 AND 30 PARTS PER PART OF SAID PARTICLES, AND PRESSING SAID SURFACES TOGETHER.
Claim 2
Independent Claim
144 words
A METHOD OF BONDING CELLULOSE ACETATE SHEETS ONE TO THE OTHER, WHICH COMPRISES SPRAYING THE SURFACES TO BE BONDED WITH AN ORGANOSOL IN THE FORM OF A DISPERSION OF FINELY DIVIDED CELLULOSE ACETATE PARTICLES HAVING AN AVERAGE PARTICLE SIZE NO LARGER THAN ABOUT 15 MICRONS IN A LIQUID PHASE DISPERSION MEDIUM COMPRISING 2 TO 8 PARTS OF PLASTICIZER PER PART OF SAID PARTICLES AND 1 TO 10 PARTS OF PLASTICIZER DILUENT PER PART OF AID PLASTICIZER, SAID PLASTICIZER BEING CHARACTERIZED BY THE ABILITY TO FORM A CLEAR SOLUTION CONTAINING 10% OF ITS WEIGHT OF SAID PARTICLES AT ROOM TEMPERATURE WITH AGITATION WITHIN ABOUT 5 HOURS WHEN SAID PARTICLES HAVE A MESH SIZE OF ABOUT 16, SAID DISPERSION MEDIUM COMPRISING SAID PLASTICIZER AND SAID DILUENT BEING PRESENT IN AN AMOUNT BETWEEN 4 AND 30 PARTS PER PART OF SAID PARTICLES, AND PRESSING SAID SURFACES TOGETHER.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |