US2787601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular plastic materials which are condensation products of hydroxy containing fatty acid glycerides and arylene dhsocyanates
Assignee: EIDP Inc
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Filing: 1953-03-03
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Granted: 1957-04-02
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Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Detrick
- 👤 Jr Eric Barthel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:56
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/36; C08G2110/00; C08G2110/0008; C08G2110/0083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A CELLULAR PLASTIC MATERIAL COMPRISING THE CONDENSATION PRODUCT OF AN ARYLENE DIIOCYANATE AND A FATTY ACID TRIGYLCERIDE HAVING AN HYDROXYL NUMBER NOT MATERIALLY LESS THAN 49, WHICH HAVE BEEN CONDENSED IN AMOUNTS SUCH THAT THE RATIO OF THE HYDROXYL GROUPS CONTAINED IN THE FATTY ACID TRIGLYCERIDE TO THE NUMBER OF ISOCYANATE GROUPS IN THE ARYLENE DIISOCYANATE IS BETWEEN 0.45 AND 0.95 TO 2, REACTED WITH AN AMOUNT OF WATER SO AS TO PROVIDE ABOUT ONE MOL OF WATER PER TWO UNREACTED ISOCYANATE GROUPS IN THE CONDENSATION MASS.
Claim 2
Dependent Claim
87 words
A CELLULAR PLASTIC MATERIAL COMPRISING THE CONDENSATION PRODUCT OF AN ARYLENE DIIOCYANATE AND A FATTY ACID TRIGYLCERIDE HAVING AN HYDROXYL NUMBER NOT MATERIALLY LESS THAN 49, WHICH HAVE BEEN CONDENSED IN AMOUNTS SUCH THAT THE RATIO OF THE HYDROXYL GROUPS CONTAINED IN THE FATTY ACID TRIGLYCERIDE TO THE NUMBER OF ISOCYANATE GROUPS IN THE ARYLENE DIISOCYANATE IS BETWEEN 0.45 AND 0.95 TO 2, REACTED WITH AN AMOUNT OF WATER SO AS TO PROVIDE ABOUT ONE MOL OF WATER PER TWO UNREACTED ISOCYANATE GROUPS IN THE CONDENSATION MASS.
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |