US2968575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable polyurethane latex and process of making same
Assignee: EIDP Inc
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Filing: 1954-05-21
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Granted: 1961-01-17
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Expires: 1974-05-21
Abstract
No abstract record available.
Inventors
- 👤 James E Mallonee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:46
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7614; C08G18/7621; C08G18/08; C08G18/0838; C08G18/0842; C08G18/0861; C08G18/0866; C08G18/10; C08G2101/00; C08G2170/00; C08G2170/80; C08G2350/00; C08G2380/00; C08G2410/00; Y; Y10; Y10S; Y10S152/00; Y10S152/905; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN THE PROCESS FOR THE MANUFACTURE OF STABLE ELASTOMERIC LATICES IN THE FORM OF HIGH MOLECULAR WEIGHT REACTION PRODUCTS OF ORGANIC DIISOCYANATES, THE STEP OF EFFECTING CHAIN EXTENSION OF AN INITIAL ADDITION PRODUCT BY EMULSIFYING SAID PRODUCT IN AN AQUEOUS MEDIUM WITH AGITATION IN THE PRESENCE OF AN EMULSIFYING AGENT, SAID AGENT BEING ONE WHICH WILL GIVE OIL-IN-WATER EMULSIONS, SAID INITIAL ADDITION PRODUCT HAVING BEEN OBTAINED BY REACTION OF AN ORGANIC DIISOCYANATE WITH AN ORGANIC COMPOUND, THE MOLAR RATIO OF DIISOCYANATE TO ORGANIC COMPOUND BEING BETWEEN ABOUT 1.2:1 TO 10:1, SAID ORGANIC COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN ATOMS WHICH DISPLAY ACTIVITY ACCORDING TO THE ZEREWITINOFF TEST, HAVING A MOLECULAR WEIGHT OF AT LEAST 750 AND BEING SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENEETHER GLYCOLS, POLY(ALKYLENEETHER-ALKYLENETHIOETHER) GLYCOLS, ALKYD RESINS, ESTERS OF POLYHYDRIC ALCOHOLS AND HYDROXY FATTY ACIDS AND POLYESTERAMIDE RESINS.
Claim 2
Dependent Claim
141 words
IN THE PROCESS FOR THE MANUFACTURE OF STABLE ELASTOMERIC LATICES IN THE FORM OF HIGH MOLECULAR WEIGHT REACTION PRODUCTS OF ORGANIC DIISOCYANATES, THE STEP OF EFFECTING CHAIN EXTENSION OF AN INITIAL ADDITION PRODUCT BY EMULSIFYING SAID PRODUCT IN AN AQUEOUS MEDIUM WITH AGITATION IN THE PRESENCE OF AN EMULSIFYING AGENT, SAID AGENT BEING ONE WHICH WILL GIVE OIL-IN-WATER EMULSIONS, SAID INITIAL ADDITION PRODUCT HAVING BEEN OBTAINED BY REACTION OF AN ORGANIC DIISOCYANATE WITH AN ORGANIC COMPOUND, THE MOLAR RATIO OF DIISOCYANATE TO ORGANIC COMPOUND BEING BETWEEN ABOUT 1.2:1 TO 10:1, SAID ORGANIC COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN ATOMS WHICH DISPLAY ACTIVITY ACCORDING TO THE ZEREWITINOFF TEST, HAVING A MOLECULAR WEIGHT OF AT LEAST 750 AND BEING SELECTED FROM THE GROUP CONSISTING OF POLYALKYLENEETHER GLYCOLS, POLY(ALKYLENEETHER-ALKYLENETHIOETHER) GLYCOLS, ALKYD RESINS, ESTERS OF POLYHYDRIC ALCOHOLS AND HYDROXY FATTY ACIDS AND POLYESTERAMIDE RESINS.
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) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |