US4656296A
Expired / Lapsed
US
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Novel compounds and their use as insolubilizers for binders for paper coating compositions
Assignee: Omnova Services Inc
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Filing: 1983-06-01
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Granted: 1987-04-07
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Expires: 2003-06-01
Abstract
Abstract Paper coating compositions contain at least one pigment, at least one binder, and, as an insolubilizer for the binder, the product of the reaction of glyoxal and a vicinal polyol.
Inventors
- 👤 William C. Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:42
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/52; D21H19/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
28 words
An insolubilizer for binders for paper coating compositions which comprises the hemiacetal product of the reaction of glyoxal with a polyol containing at least a third hydroxyl group.
Claim 2
Dependent Claim
28 words
An insolubilizer for binders for paper coating compositions which comprises the hemiacetal product of the reaction of glyoxal with a polyol containing at least a third hydroxyl group.
Claim 3
Dependent Claim
22 words
The insolubilizer of claim 1 wherein the polyol is selected from the group consisting of glycerin, sorbitol, dextrose, α-methylglucoside, and their mixtures.
Claim 4
Dependent Claim
18 words
The hemiacetal product of the reaction of glyoxal and a polyol containing at least a third hydroxyl group.
Claim 5
Dependent Claim
18 words
The hemiacetal product of the reaction of glyoxal and a polyol containing at least a third hydroxyl group.
Claim 6
Dependent Claim
22 words
The product of claim 3 wherein the polyol is selected from the group consisting of glycerin, sorbitol, dextrose, α-methylglucoside, and their mixtures.
Claim 7
Dependent Claim
1 words
Isopentose.
Claim 8
Dependent Claim
1 words
Isopentose.
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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |