US4537634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounds and their use as insolubilizers for binders for paper coating compositions
Assignee: Omnova Services Inc
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Filing: 1984-11-02
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Granted: 1985-08-27
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Expires: 2004-11-02
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 08:47
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/46; D21H19/52; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
A paper coating composition comprising a pigment, a binder, and as an insolubilizer for the binder the hemiacetal product of the reaction of glyoxal and a polyol selected from the group consisting of glycerin, sorbitol, dextrine, α-methylglucoside, and their mixtures.
Claim 2
Dependent Claim
40 words
A paper coating composition comprising a pigment, a binder, and as an insolubilizer for the binder the hemiacetal product of the reaction of glyoxal and a polyol selected from the group consisting of glycerin, sorbitol, dextrine, α-methylglucoside, and their mixtures.
Claim 3
Dependent Claim
47 words
A process for insolubilizing the binder in a paper coating composition which comprises including in the composition about 1 to 3 percent of the hemiacetal product of the reaction of glyoxal and a polyol selected from the group consisting of glycerin, sorbitol, dextrine, α-methylglucoside, and their mixtures.
Claim 4
Dependent Claim
47 words
A process for insolubilizing the binder in a paper coating composition which comprises including in the composition about 1 to 3 percent of the hemiacetal product of the reaction of glyoxal and a polyol selected from the group consisting of glycerin, sorbitol, dextrine, α-methylglucoside, and their mixtures.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the binder is a starch.
Claim 6
Dependent Claim
10 words
A cellulose substrate coated with the composition of claim 1.
References Cited (Backward Citations)
US4088630A
Cited
US4343655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |