US3299167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenolic encapsulating compositions
Assignee: Hooker Chemical Corp
•
Filing: 1963-05-10
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Granted: 1967-01-17
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Paul D Knowlson
- 👤 Simpson Elliot Wilbur
- 👤 Iii Minert E Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:39
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PROCESS FOR PREPARING ENCAPSULATING RESINS WHICH COMPRISES (A) PREPARING A FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT WHICH COMPRISES CONDENSING FURFURYLALCOHOL WITH AN ALIPHATIC ALDEHYDE IN THE PRESENCE OF AN ACID CATALYST, NEUTRALIZING THE REACTION MIXTURE AND THEREAFTER ADMIXING A HETEROCYCLIC ALDEHYDE WHICH IS A FIVE MEMBERED MONOHETERO CONJUGATED DIENE CYCLIC COMPOUND WHEREIN FOUR MEMBERS OF THE RING ARE CARBON ATOMS AND THE FIFTH MEMBER IS SELECTED FROM THE GROUP CONSISTING OF OXYGEN, NITROGEN AND SULFUR, WITH THE FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT (B) PREPARING A PHENOL-ALIPHATIC ALDEHYDE CONDENSATION RESIN PRODUCT WHICH COMPRISES CONDENSING A PHENOL WITH AN ALIPHATIC ALDEHYDE IN THE PRESENCE OF A CATALYST AND THEREAFTER NEUTRALIZING THE REACTION MIXTURE (C) ADMIXING THE SAID FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT AN SAID PHENOL-ALIPHATIC ALDEHYDE CONDENSATION RESIN PRODUCT AND THEREAFTER (D) REMOVING WATER THEREFROM UNTIL THE DESIRED MELTING POINT OF THE RESIN IS ACHIEVED.
Claim 2
Dependent Claim
143 words
A PROCESS FOR PREPARING ENCAPSULATING RESINS WHICH COMPRISES (A) PREPARING A FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT WHICH COMPRISES CONDENSING FURFURYLALCOHOL WITH AN ALIPHATIC ALDEHYDE IN THE PRESENCE OF AN ACID CATALYST, NEUTRALIZING THE REACTION MIXTURE AND THEREAFTER ADMIXING A HETEROCYCLIC ALDEHYDE WHICH IS A FIVE MEMBERED MONOHETERO CONJUGATED DIENE CYCLIC COMPOUND WHEREIN FOUR MEMBERS OF THE RING ARE CARBON ATOMS AND THE FIFTH MEMBER IS SELECTED FROM THE GROUP CONSISTING OF OXYGEN, NITROGEN AND SULFUR, WITH THE FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT (B) PREPARING A PHENOL-ALIPHATIC ALDEHYDE CONDENSATION RESIN PRODUCT WHICH COMPRISES CONDENSING A PHENOL WITH AN ALIPHATIC ALDEHYDE IN THE PRESENCE OF A CATALYST AND THEREAFTER NEUTRALIZING THE REACTION MIXTURE (C) ADMIXING THE SAID FURFURYL ALCOHOL CONDENSATION RESIN PRODUCT AN SAID PHENOL-ALIPHATIC ALDEHYDE CONDENSATION RESIN PRODUCT AND THEREAFTER (D) REMOVING WATER THEREFROM UNTIL THE DESIRED MELTING POINT OF THE RESIN IS ACHIEVED.
References Cited (Backward Citations)
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US2343972A
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US2471631A
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US2970121A
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US3043804A
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US3110623A
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |