US3637566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymer of an olefin vinyl monomer and a partial ester of an unsaturated acid anhydride with an ethoxylated alkyl alcohol
Assignee: Monsanto Co
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Filing: 1968-05-29
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Granted: 1972-01-25
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Expires: 1988-05-29
Abstract
Abstract THIS INVENTION RELATES TO TERPOLYMERS OF AN OLEFINICALLY UNSATURATED HYDROCARBON, VINYL-TYPE MONOMERS AND HYDROXYL CONTAINING NON-IONIC DISPERSING AGENT PARTIAL ESTERS OF UNSATURATED POLYBASIC CARBOXYLIC ACID AND THEIR USE AS PIGMENT BINDERS IN MINERAL COATED PAPER. THE NON-IONIC DISPERSING AGENT IS REPRESENTED BY THE FORMULA H-(OCH2CH2)N-OR WHERE N IS 5 TO 60 AND R IS AN ALKYL GROUP. A POLYMER OF ETHYLENE VINYL CHLORIDE AND THE ETHOXYLATED TRIDECYL HALF ESTER OF MALEIC ACID IS A REPRESENTATIVE TERPOLYMER OF THIS INVENTION.
Inventors
- 👤 Oliver Des Deex
- 👤 William F Fallwell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:59
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F22/00; C08F22/04; D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |