US5863322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions comprising water glass, an oligosaccharide, and a mono-, di- or tri-saccharide
Assignee: Akzo PQ Silica VOF
•
Filing: 1997-09-24
•
Granted: 1999-01-26
•
Expires: 2017-09-24
Abstract
Abstract The invention pertains to adhesive compositions comprising water glass, at least one oligosaccharide with more than three saccharide units, and at least one mono-, di- or tri-saccharide. Preferably, the oligosaccharide is a low-molecular weight dextrin. Such compositions demonstrate not only a high curing rate and a good wet tack, but also an excellent storage stability. The compositions are useful as a glue or sizing agent. When they are used as a glue, improved crush values of the finished products are observed.
Inventors
- 👤 Bartholomeus Johannes Jozef van de Heisteeg
- 👤 Bouke Dirk Froentjes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:18
CPC Classifications
C; C09; C09J; C09J1/00; C09J1/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
54 words
A paper adhesive composition comprising water glass, at least one oligosaccharide in a concentration of at least 2% by weight based on the total composition, and at least 5% by weight based on the total formulation of a third component, wherein the third component comprises at least one monosaccharide, disaccharide, trisaccharide or mixtures thereof.
Claim 2
Dependent Claim
54 words
A paper adhesive composition comprising water glass, at least one oligosaccharide in a concentration of at least 2% by weight based on the total composition, and at least 5% by weight based on the total formulation of a third component, wherein the third component comprises at least one monosaccharide, disaccharide, trisaccharide or mixtures thereof.
Claim 3
Dependent Claim
24 words
The composition of claim 1 which comprises oligo-saccharide in an amount of from between 5 and 25% by weight based on the total composition.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the oligosaccharide is a low-molecular weight dextrin.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the third component is sucrose.
Claim 6
Dependent Claim
18 words
The composition of claim 1 wherein the composition has a solids content of greater than 43% by weight.
Claim 7
Dependent Claim
11 words
The composition of claim 1 further comprising a pH controlling agent.
Claim 8
Independent Claim
50 words
A method for improving the storage stability and strength of a water glass based paper adhesive or paper sizing agent which comprises adding to said adhesive, or paper sizing agent one or more oligosaccharides, and at least 5% by weight of at least one monosaccharide, disaccharide, trisaccharide or mixtures thereof.
Claim 9
Independent Claim
50 words
A method for improving the storage stability and strength of a water glass based paper adhesive or paper sizing agent which comprises adding to said adhesive, or paper sizing agent one or more oligosaccharides, and at least 5% by weight of at least one monosaccharide, disaccharide, trisaccharide or mixtures thereof.
Claim 10
Dependent Claim
10 words
The method of claim 7 wherein the oligosaccharide is dextrin.
Claim 11
Dependent Claim
30 words
The method of claim 8 wherein the dextrin is a low-molecular weight dextrin which is present in an amount of more than 2% by weight based on the total composition.
Claim 12
Dependent Claim
25 words
A process for manufacturing paper, cardboard or paper or cardboard based products said process comprising the use of an adhesive composition according to claim 1.
Claim 13
Dependent Claim
18 words
A paper, cardboard or paper or cardboard based product prepared in accordance with the process of claim 10.
Claim 14
Dependent Claim
18 words
The composition of claim 1 wherein the composition has a solids content of greater than 50% by weight.
References Cited (Backward Citations)
BE440870A
Cited
US606751A
Cited
US2078836A
Cited
US3433691A
Cited
US3767440A
Cited
DE2646969A1
Cited
US5571316A
Cited
US5776242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-25 | 2002-07-27 | 2003-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-25 | 2006-07-27 | 2007-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-25 | 2010-07-27 | 2011-01-26 | $7700.00 | Window Closed / Lapsed |