US3708296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerization of epoxy monomers
Assignee: Primerica Inc
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Filing: 1968-08-20
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Granted: 1973-01-02
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Expires: 1988-08-20
Abstract
Abstract A PROCESS FOR POLYMERIZING EPOXY MONOMERS WHICH COMPRISES MIXING WITH EPOXY MONOMERS PHOTOSENSITIVE ARYLDIAZONIUM COMPOUNDS AND THEREAFTER SUBJECTING THE RESULTING MIXTURE TO ACTINIC RADIATION. THE ARYLDIAZONIUM COMPOUND DECOMPOSE TO PRODUCE POLYMERIZATION INITIATOR IN THE FORM OF A LEWIS ACID, THEREBY CATALYZING THE POLYMERIZATION OF THE MONOMER TO THE POLYMER. EXAMPLES OF PHOTOSENSITIVE COMPOUNDS USEFUL IN THE PROCESS ARE PNITROBENZENEDIAZONIUM HEXAFLUOROPHOSPHATE, P-N-MORPHOLINOBENZENEDIAZONIUM HEXAFLUOROARSENATE, AND 2,4-DICHLOROBENZENEDIAZONIUM HEXACHLOROANTIMONATE.
Inventors
- 👤 S Schlesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:56
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60; C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/686; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/105; C08G65/12; C08G65/22; C08G65/223; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/027; G03F7/028; G03F7/029; G03F7/12; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/115; Y10S430/127
Claims Analysis
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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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |