Patent US3015634A successfully refreshed from Google Patents.
US3015634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral filled polyurethane foams
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1959-04-15
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Granted: 1962-01-02
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Expires: 1979-04-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Ferrigno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:45
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08K; C08K7/00; C08K7/22; C08K7/24; C08J2375/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A COMPOSITION COMPRISING AN OPEN CELLED PLASTIC FOAM WHICH IS THE REACTION PRODUCT OF AT LEAST ONE LIQUID LONG CHAIN POLYOL AND AN EXCESS OF AN ARYLENE DIISOCYANATE WHICH HAS BEEN FOAMED BY INCORPORATION OF WATER AND CATALYST THERIN, SAID POLYOL BEING SELECTED FROM THE GROUP CONSISTING OF A LINEAR POLYALKYLENE ETHER POLYOL HAVING AN EQUIVALENT WEIGHT OF AT LEAST 200, A FATTY ACID TRIGLYCERIDE HAVING AN HYROXYL NUMBER OF AT LEAST 49 AND A LINEAR SATURATED POLYESTER HAVING TERMINAL HYDROXYL GROUPS WHICH IS THE ESTERIFICATION PRODUCT OF A DIBASIC ACID AND A DIHYDRIC ALCOHOL, AND UNIFORMLY DISTRIBUTED THROUGHOUT THE WALLS OF SAID OPEN CELLED FOAMED PLASTIC FROM ABOUT 5% TO ABOUT 40%, BASED ON THE WEIGHT OF SAID FOAMED REACTION PRODUCT, OF KAOLIN CLAY, SAID DAOLIN CLAY BEING SUBSTANTIALLY FREE FROM PARTICLES COARSER THAN 44 MICRONS AND HAVING A PARTICLE SIZE DISTRIBUTED SUCH THAT NOT OVER 80% BY WEIGHT SPHERICAL DIAMETER AND NOT MORE THAN 35% IN EQUIVALENT SPHERICAL DIAMETER AND NOT MORE THAN 35% BY WEIGHT CONSISTS OF PARTICLES FINER THAN 0.55 MICRON.
Claim 2
Dependent Claim
175 words
A COMPOSITION COMPRISING AN OPEN CELLED PLASTIC FOAM WHICH IS THE REACTION PRODUCT OF AT LEAST ONE LIQUID LONG CHAIN POLYOL AND AN EXCESS OF AN ARYLENE DIISOCYANATE WHICH HAS BEEN FOAMED BY INCORPORATION OF WATER AND CATALYST THERIN, SAID POLYOL BEING SELECTED FROM THE GROUP CONSISTING OF A LINEAR POLYALKYLENE ETHER POLYOL HAVING AN EQUIVALENT WEIGHT OF AT LEAST 200, A FATTY ACID TRIGLYCERIDE HAVING AN HYROXYL NUMBER OF AT LEAST 49 AND A LINEAR SATURATED POLYESTER HAVING TERMINAL HYDROXYL GROUPS WHICH IS THE ESTERIFICATION PRODUCT OF A DIBASIC ACID AND A DIHYDRIC ALCOHOL, AND UNIFORMLY DISTRIBUTED THROUGHOUT THE WALLS OF SAID OPEN CELLED FOAMED PLASTIC FROM ABOUT 5% TO ABOUT 40%, BASED ON THE WEIGHT OF SAID FOAMED REACTION PRODUCT, OF KAOLIN CLAY, SAID DAOLIN CLAY BEING SUBSTANTIALLY FREE FROM PARTICLES COARSER THAN 44 MICRONS AND HAVING A PARTICLE SIZE DISTRIBUTED SUCH THAT NOT OVER 80% BY WEIGHT SPHERICAL DIAMETER AND NOT MORE THAN 35% IN EQUIVALENT SPHERICAL DIAMETER AND NOT MORE THAN 35% BY WEIGHT CONSISTS OF PARTICLES FINER THAN 0.55 MICRON.
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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |