Patent US4100884A successfully refreshed from Google Patents.
US3007828A
Expired / Lapsed
US
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Synthetic laminate
Assignee: Richardson Co
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Filing: 1958-09-02
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Granted: 1961-11-07
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Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 William M Boyer
- 👤 Gavlin Gilbert
- 👤 Jr Harlan E Tarbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:24
CPC Classifications
D; D21; D21J; D21J1/00; B; B32; B32B; B32B27/00; C; C08; C08L; C08L63/00; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A PROCESS FOR MAKING A LAMINATE WHICH INCLUDES IMPREGNATING A CELLULOSE FIBER FILLER WITH A HEAT-CURABLE RESINOUS COMPOSITION COMPRISING: (1) A POLYGLYCIDYL ETHER OF A POLYHYDROXYL COMPOUND FROM THE CLASS CONSISTING OF PHENOLS AND ALCOHOLS, (2) A PHENOLIC ALDEHYDE RESIN CONSISTING PREDOMINANTLY OF A SUBSTANTIALLY WATERSOLUBLE RESOLE CONDENSATION PRODUCT OF PHENOL AND FORMALDEHYDE, THE RATIO BY WEIGHT OF PHENOLIC RESIN TO POLYGLYCIDYL ETHER BEING BETWEEN ABOUT 2:1 TO 3:1, AND (3) A SOLVENT WHICH INCLUDES WATER TO THE EXTENT OF ABOUT TWO TO TWENTY PERCENT OF THE TOTAL WEIGHT OF SAID COMPOSITION, FORMING AN ASSEMBLY OF SUPERIMPOSED IMPREGNATED SHEETS OF SAID FILLER, AND SUBJECTING SAID ASSEMBLY TO HEAT AND PRESSURE, WHEREBY THE RESIN COMPONENTS ARE CURED TO AN INFUSIBLE STATE AND THE ASSEMBLY IS CONVERTED TO A HARD, BOARD-LIKE PRODUCT.
Claim 2
Dependent Claim
131 words
IN A PROCESS FOR MAKING A LAMINATE WHICH INCLUDES IMPREGNATING A CELLULOSE FIBER FILLER WITH A HEAT-CURABLE RESINOUS COMPOSITION COMPRISING: (1) A POLYGLYCIDYL ETHER OF A POLYHYDROXYL COMPOUND FROM THE CLASS CONSISTING OF PHENOLS AND ALCOHOLS, (2) A PHENOLIC ALDEHYDE RESIN CONSISTING PREDOMINANTLY OF A SUBSTANTIALLY WATERSOLUBLE RESOLE CONDENSATION PRODUCT OF PHENOL AND FORMALDEHYDE, THE RATIO BY WEIGHT OF PHENOLIC RESIN TO POLYGLYCIDYL ETHER BEING BETWEEN ABOUT 2:1 TO 3:1, AND (3) A SOLVENT WHICH INCLUDES WATER TO THE EXTENT OF ABOUT TWO TO TWENTY PERCENT OF THE TOTAL WEIGHT OF SAID COMPOSITION, FORMING AN ASSEMBLY OF SUPERIMPOSED IMPREGNATED SHEETS OF SAID FILLER, AND SUBJECTING SAID ASSEMBLY TO HEAT AND PRESSURE, WHEREBY THE RESIN COMPONENTS ARE CURED TO AN INFUSIBLE STATE AND THE ASSEMBLY IS CONVERTED TO A HARD, BOARD-LIKE PRODUCT.
References Cited (Backward Citations)
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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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |