US2591466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous composition comprising zein, resinous pinewood extract, and liquid phenolicresin
Assignee: General Electric Co
•
Filing: 1950-04-28
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Granted: 1952-04-01
•
Expires: 1970-04-28
Abstract
No abstract record available.
Inventors
- 👤 William W Reynolds
- 👤 Goldner F Lipsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:40
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A COATING AND IMPREGNATING COMPOSITION COMPRISING, BY WEIGHT, OF (1) FROM 20 TO 30 PARTS ZEIN, (2) FROM 1.5 TO 4 PARTS OF THE LIGHT PETROLEUM HYDROCARBON INSOLUBLE, AROMATIC HYDROCARBON SOLVENT SOLUBLE RESINOUS EXTRACT OF PINEWOOD, (3) FROM 29 TO 43 PARTS OF A LIQUID PHENOLIC RESIN COMPOSITION CONTAINING FROM 68 TO 72 PER CENT SOLIDS AND OBTAINED BY HEAT REACTING ONE MOL OF A PHENOLIC REACTANT CONTAINING AT LEAST 70 PER CENT PHENOL WITH 1.35 TO 1.5 MOLS FORMALDEHYDE IN THE PRESENCE OF ABOUT 1 TO 2 PER CENT, BY WEIGHT, OF SODIUM HYDROXIDE, (4) 23 TO 75 PARTS ETHYL ALCOHOL, AND (5) UP TO 86 PARTS MONOETHYL ETHER OF ETHYLENE GLYCOL, SAID COMPOSITION DRYING TO A TACKLESS MASS WHICH SOFTENS AT 90-100* C. AND CURING AT A MORE ELEVATED TEMPERATURE TO AN INSOLUBLE AND INFUSIBLE MASS RESEMBLING SHELLAC IN ITS FAST DRYING, PLASTIC AND THERMOSETTING CHARACTERISTICS.
Claim 2
Dependent Claim
148 words
A COATING AND IMPREGNATING COMPOSITION COMPRISING, BY WEIGHT, OF (1) FROM 20 TO 30 PARTS ZEIN, (2) FROM 1.5 TO 4 PARTS OF THE LIGHT PETROLEUM HYDROCARBON INSOLUBLE, AROMATIC HYDROCARBON SOLVENT SOLUBLE RESINOUS EXTRACT OF PINEWOOD, (3) FROM 29 TO 43 PARTS OF A LIQUID PHENOLIC RESIN COMPOSITION CONTAINING FROM 68 TO 72 PER CENT SOLIDS AND OBTAINED BY HEAT REACTING ONE MOL OF A PHENOLIC REACTANT CONTAINING AT LEAST 70 PER CENT PHENOL WITH 1.35 TO 1.5 MOLS FORMALDEHYDE IN THE PRESENCE OF ABOUT 1 TO 2 PER CENT, BY WEIGHT, OF SODIUM HYDROXIDE, (4) 23 TO 75 PARTS ETHYL ALCOHOL, AND (5) UP TO 86 PARTS MONOETHYL ETHER OF ETHYLENE GLYCOL, SAID COMPOSITION DRYING TO A TACKLESS MASS WHICH SOFTENS AT 90-100* C. AND CURING AT A MORE ELEVATED TEMPERATURE TO AN INSOLUBLE AND INFUSIBLE MASS RESEMBLING SHELLAC IN ITS FAST DRYING, PLASTIC AND THERMOSETTING CHARACTERISTICS.
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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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |