US3017387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxy ethers of polyhydric phenols and cured products obtained therefrom
Assignee: Shell USA Inc
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Filing: 1958-07-21
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Granted: 1962-01-16
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Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Carl G Schwarzer
- 👤 Paul H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/063; C08G59/18; C08G59/20; C08G59/32; C08G59/3218
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
AN ETHER OF A VIC-EPOXY SUBSTITUTED MONOHYDRIC ALCOHOL CONTAINING FROM 3 TO 15 CARBON ATOMS AND A DIHYDROXYPHENYLALKANEDIOL HAVING BOTH PHENOL GROUP SUBSTITUENTS ATTACHED TO THE SAME CARBON ATOM, SAID DIHYDROXYPHENYL ALKANEDIOL BEING THE CONDENSATION PRODUCT OF A PHENOL WITH A DIHYDROXYL SUBSTITUTED CARBOBYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DIHYDROXYMONOALDEHYDES AND ALIPHATIC DIHYDROXYMONOKETONES CONTAINING NO MORE THANT TWELVE CARBON ATOMS PER MOLECULE, SAID ETHER HAVING MORE THAN ONE OF THE HYDROGEN ATOMS OF THE PHENOLIC HYDROXYL GROUPS OF SAID DIHYDROXYPHENYLALKANEDIOL REPLACED BY AN EPOXYSUBSTITUTED RADICAL IN THE AVERAGE MOLECULE AND CONTAINING BOTH ALIPHATIC HYDROXYL GROUPS ORGINALLY PRESENT IN SAID DIHYDROXYPHENYLALKANEDIOL, SAID ETHER BEING CHARACTERIZED BY ITS ABILITY TO CURE TO A HARD RESIN BY APPLICATION OF HEAT IN THE ABSENCE OF ADDED CURING AGENT.
Claim 2
Dependent Claim
127 words
AN ETHER OF A VIC-EPOXY SUBSTITUTED MONOHYDRIC ALCOHOL CONTAINING FROM 3 TO 15 CARBON ATOMS AND A DIHYDROXYPHENYLALKANEDIOL HAVING BOTH PHENOL GROUP SUBSTITUENTS ATTACHED TO THE SAME CARBON ATOM, SAID DIHYDROXYPHENYL ALKANEDIOL BEING THE CONDENSATION PRODUCT OF A PHENOL WITH A DIHYDROXYL SUBSTITUTED CARBOBYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DIHYDROXYMONOALDEHYDES AND ALIPHATIC DIHYDROXYMONOKETONES CONTAINING NO MORE THANT TWELVE CARBON ATOMS PER MOLECULE, SAID ETHER HAVING MORE THAN ONE OF THE HYDROGEN ATOMS OF THE PHENOLIC HYDROXYL GROUPS OF SAID DIHYDROXYPHENYLALKANEDIOL REPLACED BY AN EPOXYSUBSTITUTED RADICAL IN THE AVERAGE MOLECULE AND CONTAINING BOTH ALIPHATIC HYDROXYL GROUPS ORGINALLY PRESENT IN SAID DIHYDROXYPHENYLALKANEDIOL, SAID ETHER BEING CHARACTERIZED BY ITS ABILITY TO CURE TO A HARD RESIN BY APPLICATION OF HEAT IN THE ABSENCE OF ADDED CURING AGENT.
Claim 3
Dependent Claim
49 words
A POLYGLYCIDYL ETHER OF 1,2-DIHYDROXY-3,3-BIS(4-HYDROXYPHENYL)PROPANE WHEREIN MORE THAN ONE OF THE HYDROGEN ATOMS OF THE PHENOLIC OH GROUPS OF THE 1,2-DIHYDROXY-3,3-BIS(4-HYDROXYPHENYL) PROPANE HAVE BEEN REPLACED BY GLYCIDYL RADICALS, AND WHEREIN THE ALIPHATIC HYDROXYL GROUPS ORGINALLY PRESENT IN THE 1,2-DIHYDROXY3,3-BIS(4-HYDROXYPHENYL) PROPANE REMAIN AS UNREACTED OH GROUPS IN THE ETHER MOLECULE.
Claim 4
Dependent Claim
49 words
A POLYGLYCIDYL ETHER OF 1,2-DIHYDROXY-3,3-BIS(4-HYDROXYPHENYL)PROPANE WHEREIN MORE THAN ONE OF THE HYDROGEN ATOMS OF THE PHENOLIC OH GROUPS OF THE 1,2-DIHYDROXY-3,3-BIS(4-HYDROXYPHENYL) PROPANE HAVE BEEN REPLACED BY GLYCIDYL RADICALS, AND WHEREIN THE ALIPHATIC HYDROXYL GROUPS ORGINALLY PRESENT IN THE 1,2-DIHYDROXY3,3-BIS(4-HYDROXYPHENYL) PROPANE REMAIN AS UNREACTED OH GROUPS IN THE ETHER MOLECULE.
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |