US3358064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulating molding composition and method for molding the same
Assignee: Vitramon Inc
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Filing: 1964-03-24
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Granted: 1967-12-12
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Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Belko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:23
CPC Classifications
C; C08; C08L; C08L63/00; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A NOVEL HEAT-CURABLE RESINOUS POWDER COMPOSITION FOR THE FORMING OF BODIES HAVING HIGH MOISTURE RESISTANCE COMPRISING A HEAT-CURABLE RESINOUS POWDER HAVING UNIFORMLY MIXED THEREWITH A MINOR AMOUNT EQUAL TO AT LEAST ABOUT 0.25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF THE RESINOUS POWDER OF A LIQUID HEAT-CURABLE SILICONE POLYMER WHICH IS SUBSTANTIALLY INCOMPATIBLE WITH THE RESINOUS POWDER AND WHICH IS CAPABLE OF REMAINING SUBSTANTIALLY UNCURED UNDER THE TEMPERATURE AND TIME CONDITIONS USED TO SUBSTANTIALLY COMPLETELY CURE THE RESINOUS POWDER SUCH THAT THE SILICONE JPOLYMER WILL SEAL THE CURED RESINOUS COMPOSITION.
Claim 2
Dependent Claim
91 words
A NOVEL HEAT-CURABLE RESINOUS POWDER COMPOSITION FOR THE FORMING OF BODIES HAVING HIGH MOISTURE RESISTANCE COMPRISING A HEAT-CURABLE RESINOUS POWDER HAVING UNIFORMLY MIXED THEREWITH A MINOR AMOUNT EQUAL TO AT LEAST ABOUT 0.25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF THE RESINOUS POWDER OF A LIQUID HEAT-CURABLE SILICONE POLYMER WHICH IS SUBSTANTIALLY INCOMPATIBLE WITH THE RESINOUS POWDER AND WHICH IS CAPABLE OF REMAINING SUBSTANTIALLY UNCURED UNDER THE TEMPERATURE AND TIME CONDITIONS USED TO SUBSTANTIALLY COMPLETELY CURE THE RESINOUS POWDER SUCH THAT THE SILICONE JPOLYMER WILL SEAL THE CURED RESINOUS COMPOSITION.
Claim 3
Independent Claim
146 words
THE METHOD OF MOLDING BODIES HAVING HIGH MOISTURE RESISTANCE WHICH COMPRISES THE STEPS OF FILLING A MOLD WITH A RESINOUS MOLDING COMPOSITION COMPRISING A HEATCURABLE EPOXY RESIN HAVING UNIFORMLY MIXED THEREWITH A MINOR AMOUNT EQUAL TO AT LEAST ABOUT 0.25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF THE EPOXY RESIN OF A LIQUID HEAT-CURABLE SILICONE POLYMER WHICH IS SUBSTANTIALLY INCOMPATIBLE WITH THE EPOXY RESIN AND WHICH IS CAPABLE OF REMAINING SUBSTANTIALLY UNCURED UNDER THE TEMPERATURE AND TIME CONDITIONS USED TO SUBSTANTIALLY COMPLETELY CURE THE EPOXY RESIN; APPLYING HEAT AND PRESSURE TO THE MOLD FOR A RELATIVELY SHORT PERIOD OF TIME TO SUBSTANTIALLY COMPLETELY CURE THE EPOXY RESIN WHILE THE LIQUID SILICONE POLYMER REMAINS SUBSTANTIALLY UNCURED; AND REMOVING THE MOLDED BODY FROM THE MOD TO AN OVEN AND HEATING TO A TEMPERATURE AND FOR A PERIOD OF TIME SUFFICIENT TO SUBSTANTIALLY COMPLETELY CURE THE SILICONE POLYMER.
Claim 4
Independent Claim
146 words
THE METHOD OF MOLDING BODIES HAVING HIGH MOISTURE RESISTANCE WHICH COMPRISES THE STEPS OF FILLING A MOLD WITH A RESINOUS MOLDING COMPOSITION COMPRISING A HEATCURABLE EPOXY RESIN HAVING UNIFORMLY MIXED THEREWITH A MINOR AMOUNT EQUAL TO AT LEAST ABOUT 0.25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF THE EPOXY RESIN OF A LIQUID HEAT-CURABLE SILICONE POLYMER WHICH IS SUBSTANTIALLY INCOMPATIBLE WITH THE EPOXY RESIN AND WHICH IS CAPABLE OF REMAINING SUBSTANTIALLY UNCURED UNDER THE TEMPERATURE AND TIME CONDITIONS USED TO SUBSTANTIALLY COMPLETELY CURE THE EPOXY RESIN; APPLYING HEAT AND PRESSURE TO THE MOLD FOR A RELATIVELY SHORT PERIOD OF TIME TO SUBSTANTIALLY COMPLETELY CURE THE EPOXY RESIN WHILE THE LIQUID SILICONE POLYMER REMAINS SUBSTANTIALLY UNCURED; AND REMOVING THE MOLDED BODY FROM THE MOD TO AN OVEN AND HEATING TO A TEMPERATURE AND FOR A PERIOD OF TIME SUFFICIENT TO SUBSTANTIALLY COMPLETELY CURE THE SILICONE POLYMER.
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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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |