US2913434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for making stable acrolein-pentaerythritol condensates
Assignee: Union Carbide Corp
•
Filing: 1956-07-09
•
Granted: 1959-11-17
•
Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Howard R Guest
- 👤 Joe T Adams
- 👤 Ben W Kiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
C; C08; C08G; C08G4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PROCESS FOR FORMING SYNTHETIC RESIN WHICH COMPRISES REACTING ACROLEIN AND PENTAERYTHRITOL IN THE PRESENCE OF HYDROCHLORIC ACID AS A CATALYST TO FORM A LIQUID RESIN, WHEREIN THE MOLAR RATIO OF ACROLEIN REACTED WITH THE PENTAERYTHRITOL VARIES FROM 1,3 TO 1.9 MOLES OF ACROLEIN PER MOLE OF PENTAERYTHRITOL, DISTILLING OFF FROM SAID LIQUID RESIN VOLATILE MATERIAL WHICH CONTAINS FREE HYDROCHLORIC ACID AND WHICH DISTILLS FROM THE LIQUID RESIN UNDER THE CONDITIONS OF ATMOSPHERIC PRESSURE AND TEMPERATURES UP TO 150* C. TO FORM A STABLE LIQUID RESISN HAVING A VISCOSITY OF 5,000 TO 500,000 C.P.S. AT 40* C. AND CURING THE LIQUID RESIN TO A SOLID RESIN BY HEATING IN THE PRESENCE OF AN ACIDIC CURING CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, TOLUENESULFONIC ACID, PHOSPHORIC ACID, STANNIC CHLORIDE, TITANIUM TETRACHLORIDE, ALIMINUM CHLORIDE, FERRIC CHLORIDE, BORON TRIFLUORIDE AND MIXED ALKANESULFONIC ACIDS.
Claim 2
Dependent Claim
142 words
A PROCESS FOR FORMING SYNTHETIC RESIN WHICH COMPRISES REACTING ACROLEIN AND PENTAERYTHRITOL IN THE PRESENCE OF HYDROCHLORIC ACID AS A CATALYST TO FORM A LIQUID RESIN, WHEREIN THE MOLAR RATIO OF ACROLEIN REACTED WITH THE PENTAERYTHRITOL VARIES FROM 1,3 TO 1.9 MOLES OF ACROLEIN PER MOLE OF PENTAERYTHRITOL, DISTILLING OFF FROM SAID LIQUID RESIN VOLATILE MATERIAL WHICH CONTAINS FREE HYDROCHLORIC ACID AND WHICH DISTILLS FROM THE LIQUID RESIN UNDER THE CONDITIONS OF ATMOSPHERIC PRESSURE AND TEMPERATURES UP TO 150* C. TO FORM A STABLE LIQUID RESISN HAVING A VISCOSITY OF 5,000 TO 500,000 C.P.S. AT 40* C. AND CURING THE LIQUID RESIN TO A SOLID RESIN BY HEATING IN THE PRESENCE OF AN ACIDIC CURING CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, TOLUENESULFONIC ACID, PHOSPHORIC ACID, STANNIC CHLORIDE, TITANIUM TETRACHLORIDE, ALIMINUM CHLORIDE, FERRIC CHLORIDE, BORON TRIFLUORIDE AND MIXED ALKANESULFONIC ACIDS.
References Cited (Backward Citations)
DE870032C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |