US3244649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding composition containing cork filler and method for preparing same
Assignee: Scholl Manufacturing Co Inc
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Filing: 1961-12-14
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Granted: 1966-04-05
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Expires: 1981-12-14
Abstract
No abstract record available.
Inventors
- 👤 Milton R Levitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08K; C08K3/00; C08K3/34; C08K5/00; C08K5/04; C08K5/09; C08K5/10; C08K5/11; C08K5/12; C08K5/49; C08K5/51; C08K5/52; C08L97/00; C08L97/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A HEAT CURABLE MOLDING COMPOSITION COMPRISING PARTICLES OF AN EMULSION POLYMERIZED POLYVINYL CHLORIDE RESIN DISPERSED IN A LIQUID PLASTICIZER IN WHICH SAID RESIN IS INSOLUBLE AT MOLDING TEMPERATURE BUT WHICH IS CAPABLE OF SOLVATING SAID RESIN AT ELEVATED TEMPERATURES, SAID PLASTICIZER BEING SELECTED FROM THE GROUP CONSISTING OF D-2-ETHYL HEXYL PHTHALATE, TRI-(2-THYL HEXYL) PHOSPHATE, DI(2-ETHYL HEXYL) ADIPATE AND TRICRESYL PHOSPHATE, A GELLING AGENT SELECTED FROM THE GROUP CONSISTING OF AMINATED BENTONITE, SILICA AEROGEL, ALUMINUM LAURATE, ALUMINUM DI-2-ETHYL HEXANOATE, ALUMINUM STEARATE, MAGNESIUM STEARATE, AND COPPER PHTHALOCYANINE, AND A SUFFICIENT AMOUNT OF CORK PARTICLES TO SUBSTANTIALLY REDUCE THE SPECIFIC GRAVITY OF THE COMPOSITION AND RENDER IT MORE RESILIENT UPON COOLING FROM THE TEMPERATURE AT WHICH THE RESIN PARTICLES ARE SOLVATED BY SAID PLASTICIZER.
Claim 2
Dependent Claim
121 words
A HEAT CURABLE MOLDING COMPOSITION COMPRISING PARTICLES OF AN EMULSION POLYMERIZED POLYVINYL CHLORIDE RESIN DISPERSED IN A LIQUID PLASTICIZER IN WHICH SAID RESIN IS INSOLUBLE AT MOLDING TEMPERATURE BUT WHICH IS CAPABLE OF SOLVATING SAID RESIN AT ELEVATED TEMPERATURES, SAID PLASTICIZER BEING SELECTED FROM THE GROUP CONSISTING OF D-2-ETHYL HEXYL PHTHALATE, TRI-(2-THYL HEXYL) PHOSPHATE, DI(2-ETHYL HEXYL) ADIPATE AND TRICRESYL PHOSPHATE, A GELLING AGENT SELECTED FROM THE GROUP CONSISTING OF AMINATED BENTONITE, SILICA AEROGEL, ALUMINUM LAURATE, ALUMINUM DI-2-ETHYL HEXANOATE, ALUMINUM STEARATE, MAGNESIUM STEARATE, AND COPPER PHTHALOCYANINE, AND A SUFFICIENT AMOUNT OF CORK PARTICLES TO SUBSTANTIALLY REDUCE THE SPECIFIC GRAVITY OF THE COMPOSITION AND RENDER IT MORE RESILIENT UPON COOLING FROM THE TEMPERATURE AT WHICH THE RESIN PARTICLES ARE SOLVATED BY SAID PLASTICIZER.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |