US3826756A
Expired / Lapsed
US
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Process for preparing discrete particles of microencapsulated liquid anaerobic compositions
Assignee: Henkel Loctite Corp
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Filing: 1972-02-22
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Granted: 1974-07-30
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Expires: 1992-02-22
Abstract
Abstract AN IMPROVED PROCESS IS DISCLOSED FOR THE ENCAPSULATION OF POLYMERIZABLE COMPOSITIONS COMPOSED OF ACRYLATE ESTER MONOMERS AND PEROXY POLYMERIZATION INITIATORS. THE COMPOSITION IS DISPERSED IN AN AQUEOUS LIQUID, FOLLWING WHICH A REDOX POLYMERIZATION CATALYST SYSTEM IS ADDED TO THE AQUEOUS LIQUID TO COACT WITH THE PEROXY POLYMERIZATION INITIATOR AT THE INTERFACE BETWEEN THE DROPLETS AND THE AQUEOUS LIQUID, AND THEREBY FORM AN ENCAPSULATING SHELL OF THE ACRYLATE POLYMER.
Inventors
- 👤 A Bachmann
- 👤 G Litteral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/18; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S526/00; Y10S526/922; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
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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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |