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US3299167A Expired / Lapsed US ⏱️ 0.0 years remaining

Phenolic encapsulating compositions

Assignee: Hooker Chemical Corp
•
Filing: 1963-05-10
•
Granted: 1967-01-17
•
Expires: 1983-05-10
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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)

US2320536A Cited
US2343972A Cited
US2471631A Cited
US2970121A Cited
US3043804A Cited
US3110623A Cited

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

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