US3041371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of acrylic and methacrylic esters of polyoxyalkylene compounds
Assignee: Union Carbide Corp
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Filing: 1959-11-03
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Granted: 1962-06-26
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Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 William F Goldsmith
- 👤 Russeil C Lemon
- 👤 Amelio E Montagna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/52; C07C69/533; C07C69/54; C07C67/00; C07C67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC AND METHACRYLIC ESTERS OF POLYOXYALKYLENE GLYCOLS AND POLYOXYALKYLENE GLYCOL MONOALKYL ETHERS BY THE ESTERIFICATION OF AN UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS, ACID ANHYDRIDES AND ACID HALIDES THEREOF WITH A POLYOXYALKYLENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYOXYALKYLENE GLYCOLS AND POLYOXYALKYLENE GLYCOL MONOALKYL ETHERS, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID POLYOXYALKYLENE COMPOUND THE STABILIZED PRODUCT OBTAINED BY THE STEPS OF REACTING A 1,2-ALKYLENE OXIDE WITH A HYDROXYLCONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER, ALKYL MONOHYDROXY ALCOHOLS, ALKYLENE GLYCOLS, DIALKYLENE GLYCOLS AND TRIALKYLENE GLYCOLS IN THE PRESENCE OF AN ALKALINE CATALYST, ADJUSTING THE PH OF THE CRUDE REACTION PRODUCT TO WITHIN A RANGE OF FROM ABOUT 6 TO 11, INCORPORATING IN SAID CRUDE REACTION PRODUCT AT A TEMPERATURE UP TO ABOUT 150*C. AND AT A TIME NOT MORE THAN ABOUT ONE HOUR SUBSEQUENT TO ANY COMPLETE NEUTRALIZATION OF SAID CRUDE REACTION PRODUCT A STABILIZING QUANTITY OF A PHENOLIC COMPOUND CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
170 words
IN A PROCESS FOR THE PRODUCTION OF ACRYLIC AND METHACRYLIC ESTERS OF POLYOXYALKYLENE GLYCOLS AND POLYOXYALKYLENE GLYCOL MONOALKYL ETHERS BY THE ESTERIFICATION OF AN UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS, ACID ANHYDRIDES AND ACID HALIDES THEREOF WITH A POLYOXYALKYLENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYOXYALKYLENE GLYCOLS AND POLYOXYALKYLENE GLYCOL MONOALKYL ETHERS, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID POLYOXYALKYLENE COMPOUND THE STABILIZED PRODUCT OBTAINED BY THE STEPS OF REACTING A 1,2-ALKYLENE OXIDE WITH A HYDROXYLCONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER, ALKYL MONOHYDROXY ALCOHOLS, ALKYLENE GLYCOLS, DIALKYLENE GLYCOLS AND TRIALKYLENE GLYCOLS IN THE PRESENCE OF AN ALKALINE CATALYST, ADJUSTING THE PH OF THE CRUDE REACTION PRODUCT TO WITHIN A RANGE OF FROM ABOUT 6 TO 11, INCORPORATING IN SAID CRUDE REACTION PRODUCT AT A TEMPERATURE UP TO ABOUT 150*C. AND AT A TIME NOT MORE THAN ABOUT ONE HOUR SUBSEQUENT TO ANY COMPLETE NEUTRALIZATION OF SAID CRUDE REACTION PRODUCT A STABILIZING QUANTITY OF A PHENOLIC COMPOUND CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |