US3287302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization catalyst compositions and method of utilizing
Assignee: Tile Council of America Inc
•
Filing: 1963-01-21
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Granted: 1966-11-22
•
Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Herman B Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:14
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/72; C08G59/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF POLYMERIZING AN EPOXY TYPE RESIN IN THE PRESENCE OF A BORON HALIDE CATALYST WHICH NORMALLY CAUSES THE POLYMERIZATION TO OCCUR ALMOST INSTANTANEOUSLY, SAID METHOD COMPRISING, ABSORBING THE CATALYST IN LIQUID FORM, WITHIN A POROUS, PARTICULATE, INERT SUBSTANCE, COATING THE PARTICLES OF SAID INERT SUBSTANCE WITH A PARAFFIN WAX, MIXING THE COATED PARTICLES, WITH SAID EPOXY RESIN WHICH IS IN LIQUID, UNPOLYMERIZED FORM; AND PERMITTING THE POLYMERIZATION REACTION TO OCCUR WITH EVOLUTION OF HEAT AT A RETARDED RATE AS THE CATALYST IS SLOWLY RELEASED FROM SAID PARTICLES.
Claim 2
Independent Claim
89 words
A METHOD OF POLYMERIZING AN EPOXY TYPE RESIN IN THE PRESENCE OF A BORON HALIDE CATALYST WHICH NORMALLY CAUSES THE POLYMERIZATION TO OCCUR ALMOST INSTANTANEOUSLY, SAID METHOD COMPRISING, ABSORBING THE CATALYST IN LIQUID FORM, WITHIN A POROUS, PARTICULATE, INERT SUBSTANCE, COATING THE PARTICLES OF SAID INERT SUBSTANCE WITH A PARAFFIN WAX, MIXING THE COATED PARTICLES, WITH SAID EPOXY RESIN WHICH IS IN LIQUID, UNPOLYMERIZED FORM; AND PERMITTING THE POLYMERIZATION REACTION TO OCCUR WITH EVOLUTION OF HEAT AT A RETARDED RATE AS THE CATALYST IS SLOWLY RELEASED FROM SAID PARTICLES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2406869A
Cited
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Cited
US2653925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |