Patent FR2144084A5 successfully refreshed from Google Patents.
FR2144084A5
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Epoxides - via halohydrins from olefins in high yield - and low cost
Assignee: Individual
•
Filing: 1971-06-30
•
Granted: 1973-02-09
•
Expires: 1991-06-30
Abstract
Abstract A hydrocarbon charge contg. mono-olefins is reacted with Br2 or pref. Cl2 and excess hydrocarbon in the liquid state at under 15 kg/cm2 pressure and a temp. about ambient. The halohydrin is extracted into an organic phase, distilled, the residue reacted with alkali and the epoxide distilled. Higher mol. wt. olefins may also be used. The epoxides are intermediates for polyesters, ether oxides etc.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 09:40
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/24; C07D301/26; C07C; C07C29/00; C07C29/64; C07C29/66
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.