US2962459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising phenolic resin and cellulosic material coated with petroleum hydrocarbon and process for preparing board therefrom
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-07-01
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Granted: 1960-11-29
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Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jacob R Ash
- 👤 Gordon E Brown
- 👤 Charlton R Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:45
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A CONSOLIDATED PARTICULATE CELLULOSIC WASTE PRODUCT WHICH COMPRISES PARTICULATE CELLULOSE WASTE COATED WITH FROM 0.5-2.5% BY WEIGHT, BASED UPON THE DRY WEIGHT OF THE WASTE, OF A PETROLEUM MINERAL HYDROCARBON OF THE GROUP CONSISTING OF PETROLATUM AND PARAFFIN WAXES AND BONDED WITH A THERMOSET PHENOL-FORMALDEHYDE RESIN, SAID THEREMOSET PHENOL-FORMALDEHYDE RESIN HAVING BEEN PREPARED BY CONDENSING 1 MOL OF PHENOL WITH FROM 1.6-2.7 MOLS OF FORMALDEHYDE AND FROM 0.5-3 MOLS OF AN ALCOHOL TAKEN FROM THE GROUP CONSISTING OF MONOHYDRIC ALIPHATIC ALCOHOLS CONTAINING FROM 1-4 CARBON ATOMS AND MIXTURES THEREOF, THE CONDENSATION REACTION HAVING BEEN CARRIED OUT IN AN AQUEOUS MEDIUM IN THE PRESENCE OF FROM 0.1-0.2 MOL OF AN ALKALI METAL HYDROXIDE AT 180-220*F. UNTIL AT 21*C. MACMICHAEL 26D VISCOSITY OF 30-65 IS ATTAINED.
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |