US3670014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of allyl esters of carboxylic acids
Assignee: Hoechst AG
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Filing: 1969-07-16
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Granted: 1972-06-13
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Expires: 1989-07-16
Abstract
Abstract Preparation of allyl esters of carboxylic acids in the gaseous phase by reacting propylene, oxygen and carboxylic acids at elevated temperatures in the presence of a catalyst consisting of an inert carrier and a salt of a noble metal of the 8th group of the periodic system and 0.01 to 20 per cent by weight of bismuth.
Inventors
- 👤 Hans Fernholz
- 👤 Hans-Joachim Schmidt
- 👤 Friedrich Wunder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:04
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055; C07C69/00; C07C69/007; C07C69/02; C07C69/12; C07C69/14; C07C69/145; C07C69/155; C07C69/74; C07C69/76
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
32 words
The process of claim 1 where the catalyst contains in addition a salt of a metal selected from the group consisting of copper, iron, manganese, cerium, vanadium, antimony, lead, chromium, and titanium.
Claim 2
Dependent Claim
17 words
The process of claim 1 wherein the catalyst contains 0.1 to 5 percent by weight of bismuth.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein the bismuth is used in the form of a salt thereof.
Claim 4
Dependent Claim
20 words
The process of claim 1 whereiN the bismuth is used in the form of a salt thereof with carboxylic acid.
Claim 5
Dependent Claim
24 words
The process of claim 1 wherein the bismuth is used in the form of a salt thereof with the carboxylic acid to be reacted.
Claim 6
Dependent Claim
22 words
The process of claim 1 wherein the noble metal compound is the salt of palladium with the carboxylic acid to be reacted.
References Cited (Backward Citations)
CA747415A
Cited
DE1191366B
Cited
GB981987A
Cited
US3300528A
Cited
GB1017938A
Cited
GB1003347A
Cited
GB1047835A
Cited
GB1117595A
Cited
DE1296621B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |