US3132113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising methylol starch propionamide and thermosetting resin and process for cross-linking same
Assignee: Unilever Bestfoods North America
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Filing: 1961-08-07
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Granted: 1964-05-05
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Paschall
- 👤 Jr Frederick D Thayer
- 👤 William H Minkema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:18
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11; C; C08; C08B; C08B31/00; C08B31/003; C09; C09J; C09J103/00; C09J103/04; C09J103/06; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR FORMING A CROSS-LINKED, STARCH-RESIN MATRIX OF LOW ATER SOLUBILITY WHICH COMPRISES REACTING BY HEATING METHYLOL STARCH PROPIONAMIDE, IN WHICH THE METHYLOL GROUP IS ATTACHED TO THE AMIDE NITROGEN, AND WHICH CONTAINS SOME FREE HYDROXYL GROUPS PER ANHYDROGLUCOSE RESIDUE OF STARCH, WITH A THERMOSETTING RESIN SELECTED FROM THE GROUP CONSISTING OF AN AMINE-FORMALDEHYDE THERMOSETTING RESIN AND A PHENOL-FORMALDEHYDE THERMOSETTING RESIN; THE REACTION BEING PERFORMED AT A PH WITHIN THE RANGE OF 3 TO 13.
Claim 2
Dependent Claim
76 words
A PROCESS FOR FORMING A CROSS-LINKED, STARCH-RESIN MATRIX OF LOW ATER SOLUBILITY WHICH COMPRISES REACTING BY HEATING METHYLOL STARCH PROPIONAMIDE, IN WHICH THE METHYLOL GROUP IS ATTACHED TO THE AMIDE NITROGEN, AND WHICH CONTAINS SOME FREE HYDROXYL GROUPS PER ANHYDROGLUCOSE RESIDUE OF STARCH, WITH A THERMOSETTING RESIN SELECTED FROM THE GROUP CONSISTING OF AN AMINE-FORMALDEHYDE THERMOSETTING RESIN AND A PHENOL-FORMALDEHYDE THERMOSETTING RESIN; THE REACTION BEING PERFORMED AT A PH WITHIN THE RANGE OF 3 TO 13.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |