Patent US3743669A successfully refreshed from Google Patents.
US3743669A
Expired / Lapsed
US
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Reaction of acrylic type compounds with aldehydes and certain ketones
Assignee: Celanese Corp
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Filing: 1970-11-06
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Granted: 1973-07-03
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Expires: 1990-11-06
Abstract
Abstract ACRYLATES, ACRYLONITRILE, ACRYLAMIDES OR VINYL KETONES ARE READILY REACTED, EVEN AT AMBIENT TEMPERATURE, WITH AN ALDEHYDE IN THE PRESENCE OF AN ORGANIC TERTIARY AMINE CATALYST TO PRODUCE THE CORRESPONDING 2-(1-HYDROXYALKYL)ACRYLATES, ACRYLONITRILES, ACRYLAMIDES OR VINYL KETONES IN VERY GOOD YIELDS. THESE PRODUCT MONOMERS HAVING AN -OH MOIETY IN THEIR STRUCTURE EXHIBIT, UPON POLYMERIZATION, GOOD ADHESIVE PROPERTIES.
Inventors
- 👤 M Hillman
- 👤 A Baylis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:12
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/30; C07C67/333; C07C67/343; C07C201/00; C07C201/06; C07C201/12; C07C231/00; C07C231/12; C07C253/00; C07C253/30; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72
Claims Analysis
Total Claims: 0
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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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |