US3770679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of a poly(vinyl acetate-dialkyl maleateacrylic acid) latex
Assignee: Monsanto Co
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Filing: 1970-12-16
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Granted: 1973-11-06
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Expires: 1990-12-16
Abstract
Abstract DISCLOSED HEREIN IS A PROCESS FOR THE PREPARATION OF A POLY(VINYL ACETATE-DI-LOWER ALKYL MALEATE-ACRYLIC ACID) LATEX WHICH COMPRISES (1) INTERPOLYMERIZING THE MONOMERS AT A TEMPERATURE OF FROM 40 TO 60*C. IN A LATEX POLYMERIZATION SYSTEM USING A SURFACTANT SYSTEM COMPRISING A PHOSPHATE ESTER OF AN ALKYL PHENOL-ETHYLENE OXIDE CONDENSATE WHEREIN THE ALKYL GROUP CONTAINS 7 TO 11 CARBON ATOMS. THE RESULTING LATEX HAS WIDE UTILITY AS A TEXTILE SIZE.
Inventors
- 👤 A Corey
- 👤 D Donermeyer
- 👤 J Fantl
- 👤 C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |