US3681312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of acryloxyacyl chlorides and use thereof
Assignee: United States Department of Agriculture
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Filing: 1971-11-12
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Granted: 1972-08-01
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Expires: 1991-11-12
Abstract
Abstract ACRYLOXYACYL CHLORIDES OF THE STRUCTURE CH2=C(-R)-COO-ALK-CO-CL WHEREIN R IS H OR CH3 AND ALK IS A BIVALENT HYDROCARBON RADICAL CONTAINING 1 TO 21 CARBON ATOMS. THESE COMPOUNDS MAY BE HOMOPOLYMERIZED OR COPOLYMERIZED WITH A DIFFERENT POLYMERIZABLE MONOMER (E.G., A LOWER ALKYL ACRYLATE OR METHACRYLATE). THE POLYMERS ARE USEFUL FOR APPLICATION TO FIBROUS MATERIALS, FOR EXAMPLE, TO WOOL TO MAKE IT SHRINK RESISTANT.
Inventors
- 👤 Martin J Diamond
- 👤 Howard L Needles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:24
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263
Claims Analysis
Total Claims: 0
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |