US3051665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of foaming an admixture of epoxy resin, a chlorofluorocarbon, and a curing catalyst
Assignee: PPG Industries Inc
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Filing: 1960-02-02
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Granted: 1962-08-28
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Expires: 1980-02-02
Abstract
No abstract record available.
Inventors
- 👤 Wismer Marco
- 👤 William R Hydro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:20
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J9/147; C08J2363/00; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10S220/00; Y10S220/902; Y10S521/00; Y10S521/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF FORMING A FOAMED RESIN BODY WHICH COMPRISES MIXING A LIQUID EPOXY RESIN CONTAINING A PLURALITY OF TERMINAL EPOXY RINGS, A VOLATILE CHLOROFLUOROCARBON THAT BOILS AT NOT SUBSTANTIALLY ABOVE ROOM TEMPERATURE, AN EMULSIFYING AGENT, AND A COORDINATION COMPOUND OF BORON TRIFLUORIDE, THE MIXTURE BEING AT A TEMPERATURE BELOW THE BOILING POINT OF THE CHLOROFLUOROCARBON, AND ALLOWING THE MIXTURE TO WARM UP WITHOUT APPLICATION OF EXTERNAL HEAT WHEREBY TO FOAM AND CURE THE SAME.
Claim 2
Independent Claim
75 words
THE METHOD OF FORMING A FOAMED RESIN BODY WHICH COMPRISES MIXING A LIQUID EPOXY RESIN CONTAINING A PLURALITY OF TERMINAL EPOXY RINGS, A VOLATILE CHLOROFLUOROCARBON THAT BOILS AT NOT SUBSTANTIALLY ABOVE ROOM TEMPERATURE, AN EMULSIFYING AGENT, AND A COORDINATION COMPOUND OF BORON TRIFLUORIDE, THE MIXTURE BEING AT A TEMPERATURE BELOW THE BOILING POINT OF THE CHLOROFLUOROCARBON, AND ALLOWING THE MIXTURE TO WARM UP WITHOUT APPLICATION OF EXTERNAL HEAT WHEREBY TO FOAM AND CURE THE SAME.
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |