FR742985A - - Google Patents
Info
- Publication number
- FR742985A FR742985A FR742985DA FR742985A FR 742985 A FR742985 A FR 742985A FR 742985D A FR742985D A FR 742985DA FR 742985 A FR742985 A FR 742985A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/87—Preparation of ketenes or dimeric ketenes
- C07C45/88—Preparation of ketenes or dimeric ketenes from ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/87—Preparation of ketenes or dimeric ketenes
- C07C45/89—Preparation of ketenes or dimeric ketenes from carboxylic acids, their anhydrides, esters or halides
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US396568XA | 1931-10-17 | 1931-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742985A true FR742985A (en) | 1933-03-21 |
Family
ID=21906646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742985D Expired FR742985A (en) | 1931-10-17 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR742985A (en) |
| GB (1) | GB396568A (en) |
-
0
- FR FR742985D patent/FR742985A/fr not_active Expired
-
1932
- 1932-09-09 GB GB25208/32A patent/GB396568A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB396568A (en) | 1933-08-10 |