US2931781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a polyglycidyl ether of a polyhydroxy-1:3:5-triazine
Assignee: BASF Schweiz AG
•
Filing: 1957-06-25
•
Granted: 1960-04-05
•
Expires: 1977-06-25
Abstract
No abstract record available.
Inventors
- 👤 Hofmann Walter
- 👤 Zuppinger Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:43
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/12; C08; C08G; C08G59/00; C08G59/02; C08G59/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A SINGLE STEP PROCESS FOR THE MANUFACTURE OF A POLYGLYCIDYL ETHER OF A POLYHYDROXY-U:3:5-TRIAZINE WHICH COMPRISES HEATING A POLYHYDROXY-1:3:5-TRIAZINE CONTAINING 2 TO 3 HYDROXYL GROUPS WITH EPICHLORHYDRIN IN THE PRESENCE OF A DRY ANHYDROUS SUBSTANCE CAPABLE OF BINDING HYDROGEN CHLORIDE AT THE BOILING TEMPERATURE OF THE REACTION MIXTURE, SAID DRY-ANHYDROUS SUBSTANCE BEING SELECTED FROM THE CLASS CONSISTILNG OF ALKALI METAL HYDROXIDES, ALKALI METAL CARBONATES, ALKALI METAL ALUMINATES, ALKALI METAL SILICATES AND ALKALI METAL ZINCATES AND MIXTURES THEREOF,
Claim 2
Dependent Claim
77 words
A SINGLE STEP PROCESS FOR THE MANUFACTURE OF A POLYGLYCIDYL ETHER OF A POLYHYDROXY-U:3:5-TRIAZINE WHICH COMPRISES HEATING A POLYHYDROXY-1:3:5-TRIAZINE CONTAINING 2 TO 3 HYDROXYL GROUPS WITH EPICHLORHYDRIN IN THE PRESENCE OF A DRY ANHYDROUS SUBSTANCE CAPABLE OF BINDING HYDROGEN CHLORIDE AT THE BOILING TEMPERATURE OF THE REACTION MIXTURE, SAID DRY-ANHYDROUS SUBSTANCE BEING SELECTED FROM THE CLASS CONSISTILNG OF ALKALI METAL HYDROXIDES, ALKALI METAL CARBONATES, ALKALI METAL ALUMINATES, ALKALI METAL SILICATES AND ALKALI METAL ZINCATES AND MIXTURES THEREOF,
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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |