US3035086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing acrylic acid esters
Assignee: Union Carbide Corp
•
Filing: 1959-03-23
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Granted: 1962-05-15
•
Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jesse T Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:39
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; B01J31/1815; B01J31/1825; B01J31/183; B01J31/22; B01J31/2204; B01J31/226; C07C; C07C51/00; C07C51/10; C07C51/14; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; B01J31/26; B01J31/28; B01J31/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN THE MANUFACTURE OF AN ACRYLIC ACID ESTER BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALCOHOL AT ELEVATED TEMPERATURE AND UNDER INCREASED PRESSURE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SAID REACTION IN THE PRESENCE OF A CATALYST COMPLEX OF A NICKEL HALIDE AND AN UNSATURATED ORGANIC HETEROCYCLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-BENZIMIDAZOLETHIOLS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
62 words
IN THE MANUFACTURE OF AN ACRYLIC ACID ESTER BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND AN ALCOHOL AT ELEVATED TEMPERATURE AND UNDER INCREASED PRESSURE, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SAID REACTION IN THE PRESENCE OF A CATALYST COMPLEX OF A NICKEL HALIDE AND AN UNSATURATED ORGANIC HETEROCYCLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-BENZIMIDAZOLETHIOLS OF THE GENERAL FORMULA:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |