US3096349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of diglycidyl ethers
Assignee: —
•
Filing: —
•
Granted: 1963-07-02
•
Expires: 1980-07-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:11
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR PREPARING DIGLYCIDYL ETHERS FROM AN EPIHALOGENHYDRIN SELECTED FROM THE GROUP CONSISTING OF EPICHLOROHYDRIN AND EPIBROMOHYDRIN AND A DIOL HAVING TWO PRIMARY HYDROXYL GROUPS WHEREIN SAID EPIHALOGENHYDRIN AND SAID DIOL ARE REACTED IN THE PRESENCE OF AN ACID CATALYST TO FORM A DIOL-DIHALOGENHYDRIN AND WHEREIN HYDROGEN HALIDE IS SPLIT OFF FROM SAID DIOL-DIHALOGENHYDRIN TO FORM A DIGLYCIDYL ETHER, THE IMPROVEMENT WHICH COMPRISES: REACTING FROM 0.5 TO 1.0 MOL OF SAID EPIHALOGENHYDRIN WITH EACH MOL OF SAID DIOL HAVING TWO PRIMARY HYDROXYL GROUPS IN THE PRESENCE OF SAID ACID CATALYST TO FORM A MONOHALOGENHYDRIN ETHER; DISTILLING OFF THE UNREACTED DIOL; AND THEREAFTER REACTING AN ADDITIONAL 0.3 TO 0.47 MOL OF EPIHALOGENHYDRIN PER MOL OF THE ORIGINAL DIOL REACTANT WITH SAIDMONOHALOGENHYDRIN TO FORM SAID DIOLDIHALOGENHYDRIN.
Claim 2
Dependent Claim
125 words
A PROCESS FOR PREPARING DIGLYCIDYL ETHERS FROM AN EPIHALOGENHYDRIN SELECTED FROM THE GROUP CONSISTING OF EPICHLOROHYDRIN AND EPIBROMOHYDRIN AND A DIOL HAVING TWO PRIMARY HYDROXYL GROUPS WHEREIN SAID EPIHALOGENHYDRIN AND SAID DIOL ARE REACTED IN THE PRESENCE OF AN ACID CATALYST TO FORM A DIOL-DIHALOGENHYDRIN AND WHEREIN HYDROGEN HALIDE IS SPLIT OFF FROM SAID DIOL-DIHALOGENHYDRIN TO FORM A DIGLYCIDYL ETHER, THE IMPROVEMENT WHICH COMPRISES: REACTING FROM 0.5 TO 1.0 MOL OF SAID EPIHALOGENHYDRIN WITH EACH MOL OF SAID DIOL HAVING TWO PRIMARY HYDROXYL GROUPS IN THE PRESENCE OF SAID ACID CATALYST TO FORM A MONOHALOGENHYDRIN ETHER; DISTILLING OFF THE UNREACTED DIOL; AND THEREAFTER REACTING AN ADDITIONAL 0.3 TO 0.47 MOL OF EPIHALOGENHYDRIN PER MOL OF THE ORIGINAL DIOL REACTANT WITH SAIDMONOHALOGENHYDRIN TO FORM SAID DIOLDIHALOGENHYDRIN.
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |