Patent US2810674A successfully refreshed from Google Patents.
US2810674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin laminates and method of producing same
Assignee: Raytheon Co
•
Filing: 1954-10-27
•
Granted: 1957-10-22
•
Expires: 1974-10-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph V Madden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:42
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31551; Y10T428/31627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
THE METHOD OF PREPARING A PLASTIC LAMINATE FROM A PLURALITY OF SHEETS OF FILLER MATERIAL COMPRISING: PREPARING A RESIN MIXTURE OF EPOXY AND PHENOL ALDEHYDE RESINS WHEREIN THE PHENOL ALDEHYDE RESIN COMPRISES FROM 10% TO 30% BY WEIGHT OF THE TOTAL RESIN MIXTURE, ADDING AN EPOXY HARDENING AMINE WHICH BY WEIGHT IS WITHIN 25% TO 50% OF THE WEIGHT OF THE EPOXY RESIN, ADDING ENOUGH OF A VEGETABLE OIL PLASTICIZER TO EFFECT SUBSTANTIALLY EVEN FLOW OF BOTH SAID RESINS, ADDING AN INORGANIC ACID IN AN AMOUNT TO EFFECT SUBSTANTIALLY EQUAL CURING OF BOTH RESINS, AND ADDING A SOLVENT TO THIN THE MIXTURE TO A CONSISTENCY FOR COATING SAID SHEETS, COATING SAID SHEETS WITH THE THINNED MIXTURE, STACKING SAID COATED SHEETS, HEATING SAID COATED AND STACKED SHEETS TO EFFECT EVEN IMPREGNATION THEREOF BY BOTH THE EPOXY AND PHENOL ALDEHYDE RESINS, AND CURING SAID HEATED STACKS BY THE VOID-FREE PROCESS.
Claim 2
Independent Claim
148 words
THE METHOD OF PREPARING A PLASTIC LAMINATE FROM A PLURALITY OF SHEETS OF FILLER MATERIAL COMPRISING: PREPARING A RESIN MIXTURE OF EPOXY AND PHENOL ALDEHYDE RESINS WHEREIN THE PHENOL ALDEHYDE RESIN COMPRISES FROM 10% TO 30% BY WEIGHT OF THE TOTAL RESIN MIXTURE, ADDING AN EPOXY HARDENING AMINE WHICH BY WEIGHT IS WITHIN 25% TO 50% OF THE WEIGHT OF THE EPOXY RESIN, ADDING ENOUGH OF A VEGETABLE OIL PLASTICIZER TO EFFECT SUBSTANTIALLY EVEN FLOW OF BOTH SAID RESINS, ADDING AN INORGANIC ACID IN AN AMOUNT TO EFFECT SUBSTANTIALLY EQUAL CURING OF BOTH RESINS, AND ADDING A SOLVENT TO THIN THE MIXTURE TO A CONSISTENCY FOR COATING SAID SHEETS, COATING SAID SHEETS WITH THE THINNED MIXTURE, STACKING SAID COATED SHEETS, HEATING SAID COATED AND STACKED SHEETS TO EFFECT EVEN IMPREGNATION THEREOF BY BOTH THE EPOXY AND PHENOL ALDEHYDE RESINS, AND CURING SAID HEATED STACKS BY THE VOID-FREE PROCESS.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |