US3026241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic product and method of manufacture
Assignee: Kimberly Clark Corp
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Filing: 1957-07-30
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Granted: 1962-03-20
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Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 John F Hechtman
- 👤 Edwin G Greenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:09
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/42; D21H17/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A SATURATED PAPER PRODUCT OF ENHANCES TOUGHNESS COMPRISING A SHEET OF LOOSELY BONDED CELLULOSE FIBERS SATURATED WITH FROM ABOUT 35 TO 160 PARTS BY WEIGHT ON A SOLIDS WEIGHT BASIS PER 100 PARTS BY WEIGHT OF FIBERS WITH A COMPOSITION CONTAINING A COPOLYMER SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS HAVING CARBOXYLIC ACID GROUPS AND SALTS THEREOF, SAID SHEET HAVING PRIOR TO SATURATION AN APPARAENT DENSITY FROM ABOUT 1.0 TO ABOUT 2.6 AND A TENSILE SUM PER POUND WITHIN THE RANGE FROM ABOUT 0.04 TO ABOUT 0.24, SAID COPOLYMER HAVING A T1 FROM 0* C. TO -45* C. FORMED FROM ABOUT 0.5% TO ABOUT 7% BY WEIGHT OF AT LEAST ONE POLYMRIZABLE A,B-ETHYLENE CARBOXYLIC ACID, AT LEAST 80% BY WEIGHT OF AT LEAST ONE ALKYL ACRYLATE IN WHICH THE ALKYL GROUP HSS FROM 1 TO 4 CARBON ATOMS, AND NOT MORE THAN ABOUT 19.5% BY WEIGHT OF AT LEAST ONE ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS FROM 1 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
164 words
A SATURATED PAPER PRODUCT OF ENHANCES TOUGHNESS COMPRISING A SHEET OF LOOSELY BONDED CELLULOSE FIBERS SATURATED WITH FROM ABOUT 35 TO 160 PARTS BY WEIGHT ON A SOLIDS WEIGHT BASIS PER 100 PARTS BY WEIGHT OF FIBERS WITH A COMPOSITION CONTAINING A COPOLYMER SELECTED FROM THE CLASS CONSISTING OF COMPOUNDS HAVING CARBOXYLIC ACID GROUPS AND SALTS THEREOF, SAID SHEET HAVING PRIOR TO SATURATION AN APPARAENT DENSITY FROM ABOUT 1.0 TO ABOUT 2.6 AND A TENSILE SUM PER POUND WITHIN THE RANGE FROM ABOUT 0.04 TO ABOUT 0.24, SAID COPOLYMER HAVING A T1 FROM 0* C. TO -45* C. FORMED FROM ABOUT 0.5% TO ABOUT 7% BY WEIGHT OF AT LEAST ONE POLYMRIZABLE A,B-ETHYLENE CARBOXYLIC ACID, AT LEAST 80% BY WEIGHT OF AT LEAST ONE ALKYL ACRYLATE IN WHICH THE ALKYL GROUP HSS FROM 1 TO 4 CARBON ATOMS, AND NOT MORE THAN ABOUT 19.5% BY WEIGHT OF AT LEAST ONE ALKYL METHACRYLATE IN WHICH THE ALKYL GROUP HAS FROM 1 TO 4 CARBON ATOMS.
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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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |