US2779668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin modified phenol resin abrasive
Assignee: Union Carbide Corp
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Filing: 1953-04-02
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Granted: 1957-01-29
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Expires: 1973-04-02
Abstract
No abstract record available.
Inventors
- 👤 Rupert S Daniels
- 👤 Anthony J Mostello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:22
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/285; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A COMPOSITION FOR ABRASIVE GRINDING WHEELS COMPRISING ABRASIVE PARTICLES AND AS A BINDER THEREFOR AN AMOUNT OF LIQUID WETTING AGENT SUFFICIENT TO WET THOROUGHLY THE PARTICLES, SAID WETTING AGENT BEING AT LEAST ONE SELECTED FROM THE GROUP CONSISTING OF FURFURAL, CRESOL, A LIDUID HEAT-HARDENABLE PHENOL-FORMADLEHYDE RESIN, AND A FUSIBLE GLYCIDYL ETHER OF A POLYPHENYLOL METHANE, COMBINED WITH A MIXTURE OF A HEAT-HARDENABLE PHENOL-FORMALDEHYDE RESIN AND FUSIBLE GLYCIDYL ETHER OF A POLYPHENYLOL METHANE, THE PERCENTAGE OF SAID PHENMOL-FORMALDEHYDE RESIN IN SAID MIXTURE VARYING FROM 54 TO 99 PERCENT BY WEIGHT, AND THE RATIO OF FREE PHENOLIC HYDROXYL GROUPS TO EPOXY GROUPS IN THE RESINMIXTURE BEING GREATER THAN 7 TO 1.
Claim 2
Dependent Claim
109 words
A COMPOSITION FOR ABRASIVE GRINDING WHEELS COMPRISING ABRASIVE PARTICLES AND AS A BINDER THEREFOR AN AMOUNT OF LIQUID WETTING AGENT SUFFICIENT TO WET THOROUGHLY THE PARTICLES, SAID WETTING AGENT BEING AT LEAST ONE SELECTED FROM THE GROUP CONSISTING OF FURFURAL, CRESOL, A LIDUID HEAT-HARDENABLE PHENOL-FORMADLEHYDE RESIN, AND A FUSIBLE GLYCIDYL ETHER OF A POLYPHENYLOL METHANE, COMBINED WITH A MIXTURE OF A HEAT-HARDENABLE PHENOL-FORMALDEHYDE RESIN AND FUSIBLE GLYCIDYL ETHER OF A POLYPHENYLOL METHANE, THE PERCENTAGE OF SAID PHENMOL-FORMALDEHYDE RESIN IN SAID MIXTURE VARYING FROM 54 TO 99 PERCENT BY WEIGHT, AND THE RATIO OF FREE PHENOLIC HYDROXYL GROUPS TO EPOXY GROUPS IN THE RESINMIXTURE BEING GREATER THAN 7 TO 1.
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |