US2878199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenol-aldehyde resins esterified with fatty acids
Assignee: General Mills Inc
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Filing: 1955-05-12
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Granted: 1959-03-17
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Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 Robert A Mohr
- 👤 Erwin L Capener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/30; C08G8/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
PROCESS OF PRODUCING A HIGHER FATTY ACID ESTER OF A PHENOLIC RESIN WHICH COMPRISES REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENYL PHENOLS AND ALKYL PHENOLS CONTAINING FROM 1-8 CARBON ATOMS IN THE ALKYL SUBSTITUENT, AND FORMALDEHYDE IN ABOUT EQUIMOLAR PROPORTIONS AND IN THE PRESENCE OF A HIGHER FATTY ACID IN THE PRESENCE OF AN ACID RESINIFICATION CATALYST AND AT A TEMPERATURE BELOW 200*C. TO PRODUCE A PHENOLIC RESIN AND SUBSEQUENTLY HEATING THE PHENOLIC RESIN THUS OBTAINED WITH THE HIGHER FATTY ACID PRESENT DURING THE RESINIFICATION REACTION TO A TEMPERATURE ABOVE 200*C. TO EFFECT ESTERIFICATION OF THE PHENOLIC RESIN.
Claim 2
Dependent Claim
101 words
PROCESS OF PRODUCING A HIGHER FATTY ACID ESTER OF A PHENOLIC RESIN WHICH COMPRISES REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF PHENYL PHENOLS AND ALKYL PHENOLS CONTAINING FROM 1-8 CARBON ATOMS IN THE ALKYL SUBSTITUENT, AND FORMALDEHYDE IN ABOUT EQUIMOLAR PROPORTIONS AND IN THE PRESENCE OF A HIGHER FATTY ACID IN THE PRESENCE OF AN ACID RESINIFICATION CATALYST AND AT A TEMPERATURE BELOW 200*C. TO PRODUCE A PHENOLIC RESIN AND SUBSEQUENTLY HEATING THE PHENOLIC RESIN THUS OBTAINED WITH THE HIGHER FATTY ACID PRESENT DURING THE RESINIFICATION REACTION TO A TEMPERATURE ABOVE 200*C. TO EFFECT ESTERIFICATION OF THE PHENOLIC RESIN.
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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |