US2676157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming foamed products from aldehyde modified alkyds and polyisocyanates
Assignee: RTX Corp
•
Filing: 1950-12-02
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Granted: 1954-04-20
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Expires: 1970-12-02
Abstract
No abstract record available.
Inventors
- 👤 Isaac L Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:45
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; Y; Y10; Y10S; Y10S220/00; Y10S220/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS OF FORMING A FOAMED RESIN WHICH COMPRISES TREATING ABOUT ONE TO ABOUT FOUR PARTS OF THE LIQUID REACTION PRODUCT FROM THE SIMULTANEOUS REACTION OF A MIXTURE CONSISTING OF ABOUT ONE MOLE OF A POLYCARBOXYLIC ACID, ABOUT ONE TO ABOUT TQO MOLS OF A POLYHYDRIC ALCOHOL AND ABOUT ONE-TENTH TO ABOUT THREE-QUARTERS OF A MOL OF AN ALDEHYDE, THE REACTION PRODUCT HAVING AN ACID NUMBER OF FROM 5 TO 75, BY MIXING WITH ONE PART OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC POLYSOCYANATES AND ORGAINC POLYISOTHIOCYANATES.
Claim 2
Dependent Claim
90 words
A PROCESS OF FORMING A FOAMED RESIN WHICH COMPRISES TREATING ABOUT ONE TO ABOUT FOUR PARTS OF THE LIQUID REACTION PRODUCT FROM THE SIMULTANEOUS REACTION OF A MIXTURE CONSISTING OF ABOUT ONE MOLE OF A POLYCARBOXYLIC ACID, ABOUT ONE TO ABOUT TQO MOLS OF A POLYHYDRIC ALCOHOL AND ABOUT ONE-TENTH TO ABOUT THREE-QUARTERS OF A MOL OF AN ALDEHYDE, THE REACTION PRODUCT HAVING AN ACID NUMBER OF FROM 5 TO 75, BY MIXING WITH ONE PART OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC POLYSOCYANATES AND ORGAINC POLYISOTHIOCYANATES.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |