US3087833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous structures and methods of making the same
Assignee: Johnson and Johnson
•
Filing: 1961-01-19
•
Granted: 1963-04-30
•
Expires: 1981-01-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Drelich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:35
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/09; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/66; D06M15/07; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/31504; Y10T428/31971; Y10T442/00; Y10T442/20; Y10T442/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A METHOD OF MAKING AN INTERMITTENTLY BONDED NONWOVEN FABRIC, WHICH IS PARTICALLY NON-PILLING IN WASHING AND LAUNDERING, WITH COMPRISES: FORMING A LAYER IN A OVERLAPPING, INTERSECTING FIBRES; PRINTING THE LAYER IN A PREDETEERMINED PATTERN OF SPACED SEGMENTS PENETRATING SUBSTANTIALLY THROUGH THE THICKNESS OF SAID LAYER FROM ONE SURFACE THEREOF TO THE OUTER SURFACE WITH AN ALKALINE SOLUTION OF HYDROXYETHYL CELLULOSE HAVING A VISCOSITY OF FROM ABOUT 450 TO ABOUT 2000 CENTIPOISES AND A CAUSTIC CONTENT OF FROM ABOUT 6% TO ABOUT 91/2%, SAID HYDROXYETHYL CELLULOSE HAVING AN ETHYLENE OXIDE CONTENT OF THE ABOUT 2% TO ABOUT 5% BY WEIGHT, SAID ETHYLENE OXIDE BEING SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT THE CELLULOSE MOLECULE, AND SAID HYDROXYETHYL CELLULOSE HAVING A DEGREE OF POLYMERIZATION OF FROM ABOUT 250 TO ABOUT 1000 AND BEING WATER-INSOLUBLE; AND COAGULATING SAID HYDROXYETHYL CELLULOSE SOLUTION WHILE THE SAME IS IN THE AFORESAID PRINTED FORM TO DEPOSIT ON AND IN THE FABRIC SPACED SEGMENTS OF WATER-INSOLUBLE HYDROXYETHYLCELLULOSE WHICH BIND THE FIBERS IN THE FIBER LAYER TO PRODUCE AN INTERMITTENTLY BONDED NONWOVEN FABRIC WHICH IS PRACTICALLY NON-PILLING IN WASHING AND LAUNDERING.
Claim 2
Independent Claim
179 words
A METHOD OF MAKING AN INTERMITTENTLY BONDED NONWOVEN FABRIC, WHICH IS PARTICALLY NON-PILLING IN WASHING AND LAUNDERING, WITH COMPRISES: FORMING A LAYER IN A OVERLAPPING, INTERSECTING FIBRES; PRINTING THE LAYER IN A PREDETEERMINED PATTERN OF SPACED SEGMENTS PENETRATING SUBSTANTIALLY THROUGH THE THICKNESS OF SAID LAYER FROM ONE SURFACE THEREOF TO THE OUTER SURFACE WITH AN ALKALINE SOLUTION OF HYDROXYETHYL CELLULOSE HAVING A VISCOSITY OF FROM ABOUT 450 TO ABOUT 2000 CENTIPOISES AND A CAUSTIC CONTENT OF FROM ABOUT 6% TO ABOUT 91/2%, SAID HYDROXYETHYL CELLULOSE HAVING AN ETHYLENE OXIDE CONTENT OF THE ABOUT 2% TO ABOUT 5% BY WEIGHT, SAID ETHYLENE OXIDE BEING SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT THE CELLULOSE MOLECULE, AND SAID HYDROXYETHYL CELLULOSE HAVING A DEGREE OF POLYMERIZATION OF FROM ABOUT 250 TO ABOUT 1000 AND BEING WATER-INSOLUBLE; AND COAGULATING SAID HYDROXYETHYL CELLULOSE SOLUTION WHILE THE SAME IS IN THE AFORESAID PRINTED FORM TO DEPOSIT ON AND IN THE FABRIC SPACED SEGMENTS OF WATER-INSOLUBLE HYDROXYETHYLCELLULOSE WHICH BIND THE FIBERS IN THE FIBER LAYER TO PRODUCE AN INTERMITTENTLY BONDED NONWOVEN FABRIC WHICH IS PRACTICALLY NON-PILLING IN WASHING AND LAUNDERING.
References Cited (Backward Citations)
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US2422572A
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |