US3293200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humin material extended-thermosetting adhesive, and process of making the same
Assignee: Fort James Corp
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Filing: 1963-02-27
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Granted: 1966-12-20
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Warren S Macgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:13
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN AQUEOUS THERMOSETTING ADHESIVE COMPOSITION COMPRISING A MIXTURE OF FROM ABOUT 40% TO ABOUT 99% OF A WATER-SOLUBLE PHENOL-ALDEHYDE RESIN AND FROM ABOUT 1% TO ABOUT 60% OF A WATER-INSOLUBLE, FINELY DIVIDED HUMIN MATERIAL CONSISTING OF THE PRODUCT OBTAINED FROM THE MANUFACTURE OF LEVULINIC ACID BY SEVERE ACID HYDROLYSIS OF LIGNOCELLULOSE AT A TEMPERATURE IN EXCESS OF ABOUT 150*C. BUT LESS THAN ABOUT 210*C., SAID HUMIN MATERIAL CONSISTING ESSENTIALLY OF LIGNIN, DEGRADATION PRODUCTS AND ASH, AND BEING SUBSTANTIALLY FREE OF CARBOHYDRATES, THE PRECENTAGES BEING EXPRESSED BY WEIGHT OF A DRY SOLIDS BASIS.
Claim 2
Dependent Claim
92 words
AN AQUEOUS THERMOSETTING ADHESIVE COMPOSITION COMPRISING A MIXTURE OF FROM ABOUT 40% TO ABOUT 99% OF A WATER-SOLUBLE PHENOL-ALDEHYDE RESIN AND FROM ABOUT 1% TO ABOUT 60% OF A WATER-INSOLUBLE, FINELY DIVIDED HUMIN MATERIAL CONSISTING OF THE PRODUCT OBTAINED FROM THE MANUFACTURE OF LEVULINIC ACID BY SEVERE ACID HYDROLYSIS OF LIGNOCELLULOSE AT A TEMPERATURE IN EXCESS OF ABOUT 150*C. BUT LESS THAN ABOUT 210*C., SAID HUMIN MATERIAL CONSISTING ESSENTIALLY OF LIGNIN, DEGRADATION PRODUCTS AND ASH, AND BEING SUBSTANTIALLY FREE OF CARBOHYDRATES, THE PRECENTAGES BEING EXPRESSED BY WEIGHT OF A DRY SOLIDS BASIS.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |