US2582911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of acrylic esters
Assignee: Rohm and Haas Co
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Filing: 1950-07-12
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Granted: 1952-01-15
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Expires: 1970-07-12
Abstract
No abstract record available.
Inventors
- 👤 Harry T Neher
- 👤 Edward H Specht
- 👤 Neuman Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR PREPARING AN ACRYLIC ESTER, ROOCCH=CH2, WHICH COMPRISES FIRST MIXING TOGETHER AND REACTING AT A TEMPERATURE BETWEEN 0* AND 75* C. ACETYLENE, NICKEL CARBONYL, ACID, AND AN ALCOHOL, ROH, AND WHILE THE REACTION OF THESE MATERIAL IS OCCURING, ADDING TO THIS REACTING MIXTURE ACETYLENE, CARBON MONOXIDE, NICKEL CARBONYL, ACID, AND ALCOHOL, ROH, AND REACTING THESE TOGETHER BETWEEN 0* AND 75* C., THE CARBON MONOXIDE SUPPLYING 20% UP TO 85% OF THE TOTAL CO FROM BOTH SAID MONOXIDE AND NICKEL CARBONYL AND THE ACID BEING ADDED IN AN AMOUNT FROM 50% TO 110% OF THAT REQUIRED TO FORM A NICKELOUS SALT OF THE ACID, R BEING AN ALKYL GROUP.
Claim 2
Dependent Claim
110 words
A PROCESS FOR PREPARING AN ACRYLIC ESTER, ROOCCH=CH2, WHICH COMPRISES FIRST MIXING TOGETHER AND REACTING AT A TEMPERATURE BETWEEN 0* AND 75* C. ACETYLENE, NICKEL CARBONYL, ACID, AND AN ALCOHOL, ROH, AND WHILE THE REACTION OF THESE MATERIAL IS OCCURING, ADDING TO THIS REACTING MIXTURE ACETYLENE, CARBON MONOXIDE, NICKEL CARBONYL, ACID, AND ALCOHOL, ROH, AND REACTING THESE TOGETHER BETWEEN 0* AND 75* C., THE CARBON MONOXIDE SUPPLYING 20% UP TO 85% OF THE TOTAL CO FROM BOTH SAID MONOXIDE AND NICKEL CARBONYL AND THE ACID BEING ADDED IN AN AMOUNT FROM 50% TO 110% OF THAT REQUIRED TO FORM A NICKELOUS SALT OF THE ACID, R BEING AN ALKYL GROUP.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |