Patent US2528507A successfully refreshed from Google Patents.
US2528507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container sealing compositions
Assignee: Dewey and Almy Chemical Co
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Filing: 1949-05-11
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Granted: 1950-11-07
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Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Allen B Foye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:38
CPC Classifications
C; C09; C09J; C09J127/00; C09J127/02; C09J127/04; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A CONTAINER SEALING COMPOSITION COMPRISING AT ROOM TEMPERATURES A CONGEALED MASS OF PLASTICIZER AND A WAX-LIKE CONGELATION AGENT SELECTED FROM THE CLASS CONSISTING OF AN AMIDE WAX, OCTADECENYLAMINE AND MYRISTIC ACID, HAVING UNIFORMLY DISTRIBUTED THEREIN DISCRETE PARTICLES OF FILLER AND DISCRETE PARTICLES OF A RESIN SELECTED FROM THE CLASS CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS OF VINYLIDENE CHLORIDE AND ACRYLONITRILE WHICH IS PASTE-FORMING WITH THE PLASTICIZER, THE RESIN BEING SUBSTANTIALLY UNSOLVATED AND INSOLUBLE IN THE PLASTICIZER AT ROOM TEMPERATURE BUT SOLUBLE IN THE PLASTICIZER AT TEMPERATURES ABOVE 150*F., SAID CONGELATION AGENT CONSTITUTING FROM 2 TO 25% BY WEIGHT OF THE COMPOSITION, SAID COMPOSITION BEING A FLOWABLE COLLOIDAL LIQUID AT TEMPERATURES BETWEEN ROOM TEMPERATURE AND 150*F. AND BEING CONVERTIBLE INTO A PERMANENT RUBBERY MASS BY HEATING TO A TEMPERATURE ABOVE 150*F. AT WHICH THE RESIN SOLVATES IN THE PLASTICIZER AND THEREAFTER COOLING THE COMPOSITION TO ROOM TEMPERATURE.
Claim 2
Dependent Claim
148 words
A CONTAINER SEALING COMPOSITION COMPRISING AT ROOM TEMPERATURES A CONGEALED MASS OF PLASTICIZER AND A WAX-LIKE CONGELATION AGENT SELECTED FROM THE CLASS CONSISTING OF AN AMIDE WAX, OCTADECENYLAMINE AND MYRISTIC ACID, HAVING UNIFORMLY DISTRIBUTED THEREIN DISCRETE PARTICLES OF FILLER AND DISCRETE PARTICLES OF A RESIN SELECTED FROM THE CLASS CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS OF VINYLIDENE CHLORIDE AND ACRYLONITRILE WHICH IS PASTE-FORMING WITH THE PLASTICIZER, THE RESIN BEING SUBSTANTIALLY UNSOLVATED AND INSOLUBLE IN THE PLASTICIZER AT ROOM TEMPERATURE BUT SOLUBLE IN THE PLASTICIZER AT TEMPERATURES ABOVE 150*F., SAID CONGELATION AGENT CONSTITUTING FROM 2 TO 25% BY WEIGHT OF THE COMPOSITION, SAID COMPOSITION BEING A FLOWABLE COLLOIDAL LIQUID AT TEMPERATURES BETWEEN ROOM TEMPERATURE AND 150*F. AND BEING CONVERTIBLE INTO A PERMANENT RUBBERY MASS BY HEATING TO A TEMPERATURE ABOVE 150*F. AT WHICH THE RESIN SOLVATES IN THE PLASTICIZER AND THEREAFTER COOLING THE COMPOSITION TO ROOM TEMPERATURE.
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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |