US2865887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycidyl ethers of reaction products of certain phenols with polymerizable aromatic substances containing at least one vinyl group
Assignee: BASF Schweiz AG
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Filing: 1954-04-30
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Granted: 1958-12-23
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Expires: 1974-04-30
Abstract
No abstract record available.
Inventors
- 👤 Mackenzie James Brown Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:02
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A GLYCIDYL ETHER OF A POLYHYDRIC PHENOL PRODUCED BY HEAT CONDENSATION IN THE PRESENCE OF A MINERAL ACID CATALYST OF (A) A PHENOL CONTAINING AT LEAST ONE FEE PHENOLIC HYDROXYL GROUP AND AT LEAST ONE UNSUBSTITUTED REACTIVE POSITION IN A BENZENE NUCLEUS AND BEING FREE FROM OTHER SUBSTITUENTS CAPABLE OF REACTING WITH EPOXIDE GROUPS WITH (B) A MONOCYCLIC AROMATIC HYDROCARBON CONTAINING AS THE SOLE NON-AROMATIC UNSATURATION AT LEAST ONE VINYL GROUP ATTACHED TO THE BENZENE RING OF THE AROMATIC HYDROCARBON, REACTANTS (A) AND (B) BEING SO SELECTED THAT IF (A) IS A MONOHYDRIC PHENOL (B) IS A DIVINYL BENZENE, WHILE IF (B) IS A MONOVINYL BENZENE, THEN (A) IS A POLYHYDRIC PHENOL.
Claim 2
Dependent Claim
112 words
A GLYCIDYL ETHER OF A POLYHYDRIC PHENOL PRODUCED BY HEAT CONDENSATION IN THE PRESENCE OF A MINERAL ACID CATALYST OF (A) A PHENOL CONTAINING AT LEAST ONE FEE PHENOLIC HYDROXYL GROUP AND AT LEAST ONE UNSUBSTITUTED REACTIVE POSITION IN A BENZENE NUCLEUS AND BEING FREE FROM OTHER SUBSTITUENTS CAPABLE OF REACTING WITH EPOXIDE GROUPS WITH (B) A MONOCYCLIC AROMATIC HYDROCARBON CONTAINING AS THE SOLE NON-AROMATIC UNSATURATION AT LEAST ONE VINYL GROUP ATTACHED TO THE BENZENE RING OF THE AROMATIC HYDROCARBON, REACTANTS (A) AND (B) BEING SO SELECTED THAT IF (A) IS A MONOHYDRIC PHENOL (B) IS A DIVINYL BENZENE, WHILE IF (B) IS A MONOVINYL BENZENE, THEN (A) IS A POLYHYDRIC PHENOL.
References Cited (Backward Citations)
US2467171A
Cited
US2247402A
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US2247404A
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US2444333A
Cited
US2653142A
Cited
US2665266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |