US2885385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylol derivatives of olefinic aldehydes
Assignee: Union Carbide Corp
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Filing: 1953-07-16
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Granted: 1959-05-05
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Expires: 1973-07-16
Abstract
No abstract record available.
Inventors
- 👤 Alford G Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A FUSIBE, RESINOUS POLYPHENYLOL CONDENSATION PRODUCT OF A MONOHYDRIC PHENOL HAVING MORE THAN ONE ACTIVE NUCLEAR POSITION AND AN OLEFINIC ALDEHYDE HAVING THE FORMULA CNH2N-1 CHO WHEREIN N IS A WHOLE NUMBER FROM 2 TO 6, SAID POLYPHENYLOL CONTAINING A MIXTURE OF TRIPHENYOLS, PENTAPHENYLOLS, AND HEPTAPENYLOLS AND BEING THE REACTION PRODUCT RESULTING FROM THE CONDENSATION REACTION OF AT LEAST ABOUT 5 MOLS OF SAID PHENOL PER MOL OF OLEFINIC ALDEHYDE IN THE PRESENCE F A CATALYTIC AMOUNT OF AN ACID CATALYST.
Claim 2
Dependent Claim
81 words
A FUSIBE, RESINOUS POLYPHENYLOL CONDENSATION PRODUCT OF A MONOHYDRIC PHENOL HAVING MORE THAN ONE ACTIVE NUCLEAR POSITION AND AN OLEFINIC ALDEHYDE HAVING THE FORMULA CNH2N-1 CHO WHEREIN N IS A WHOLE NUMBER FROM 2 TO 6, SAID POLYPHENYLOL CONTAINING A MIXTURE OF TRIPHENYOLS, PENTAPHENYLOLS, AND HEPTAPENYLOLS AND BEING THE REACTION PRODUCT RESULTING FROM THE CONDENSATION REACTION OF AT LEAST ABOUT 5 MOLS OF SAID PHENOL PER MOL OF OLEFINIC ALDEHYDE IN THE PRESENCE F A CATALYTIC AMOUNT OF AN ACID CATALYST.
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |