US2907751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkenylphenol-aldehyde resins
Assignee: PPG Industries Inc
•
Filing: 1954-05-03
•
Granted: 1959-10-06
•
Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 Hilary E Holste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:08
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD OF IMPROVING THE STABILITY, COMPATIBILITY, AND FABRICATION PROPERTIES OF AN ALKALINE CATALYZED RESINOUS CONDENSATION PRODUCT OF FORMALDEHYDE AND A MIXTURE OF BUTENYLPHENOLS CONSISTING OF MONOBUTENYLPHENOLS, DIBUTENYLPHENOLS, AND TRIBUTENYLPHENOLS SAID RESINOUS CONDENSATION PRODUCT BEING CHARACTERIZED BY HAVING METHYLOL RADICALS ATTACHED TO CARBON ATOMS, OF THE PHENOLIC RINGS, WHICH COMPRISES HEATING A MIXTURE OF SAID RESINOUS CONDENSATION PRODUCT AND ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING FROM 1 TO AB OUT 8 CARBON ATOMS, WHILE MAINTAINING THE PH OF THE REACTION MIXTURE BELOW ABOUT 7.0 FOR A PERIOD SUCH THAT ABOUT 10 PERCENT TO 30 PERCENT OF THE HYDROXY GROUPS OF SAID METHYLOL RADICALS OF THE RESIN ARE REACTED WITH SAID ALCOHOL.
Claim 2
Independent Claim
109 words
A METHOD OF IMPROVING THE STABILITY, COMPATIBILITY, AND FABRICATION PROPERTIES OF AN ALKALINE CATALYZED RESINOUS CONDENSATION PRODUCT OF FORMALDEHYDE AND A MIXTURE OF BUTENYLPHENOLS CONSISTING OF MONOBUTENYLPHENOLS, DIBUTENYLPHENOLS, AND TRIBUTENYLPHENOLS SAID RESINOUS CONDENSATION PRODUCT BEING CHARACTERIZED BY HAVING METHYLOL RADICALS ATTACHED TO CARBON ATOMS, OF THE PHENOLIC RINGS, WHICH COMPRISES HEATING A MIXTURE OF SAID RESINOUS CONDENSATION PRODUCT AND ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING FROM 1 TO AB OUT 8 CARBON ATOMS, WHILE MAINTAINING THE PH OF THE REACTION MIXTURE BELOW ABOUT 7.0 FOR A PERIOD SUCH THAT ABOUT 10 PERCENT TO 30 PERCENT OF THE HYDROXY GROUPS OF SAID METHYLOL RADICALS OF THE RESIN ARE REACTED WITH SAID ALCOHOL.
References Cited (Backward Citations)
GB182886A
Cited
US2006043A
Cited
US2242250A
Cited
US2175393A
Cited
AT155968B
Cited
GB511511A
Cited
US2587578A
Cited
US2657185A
Cited
FR999701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |