Paper and methods of making paper
US-9212453-B2 · Dec 15, 2015 · US
Compositions and methods of making paper products
US9328462B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9328462-B2 |
| Application number | US-201314408404-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 17, 2013 |
| Priority date | Jun 22, 2012 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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Abstract
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One or more embodiments include paper, methods of making paper, compositions, and the like, are provided. In various exemplary embodiments described herein, a paper material may be formed by treating a cellulosic fiber or an aqueous pulp slurry with a treatment composition comprising an anionic polyacrylamide resin and an aldehyde-functionalized polymer resin.
First claim
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We claim at least the following: 1. A method of making a paper, comprising: introducing to a cellulosic fiber or an aqueous pulp slurry, a treatment composition comprising an anionic polyacrylamides resin and an aldehyde-functionalized polymer resin, wherein the complex of the anionic polyacrylamide resin and the aldehyde-functionalized polymer resin possesses a net cationic charge. 2. The method of claim 1 , wherein the resultant paper has a higher retention of fiber/particulate as compared to a paper that has not been treated with the treatment composition. 3. The method of claim 1 , wherein the anionic polyacrylamide resin and an aldehyde-functionalized polymer resin are added separately to the cellulosic fiber. 4. The method of claim 1 , wherein the anionic polyacrylamide resin and the aldehyde-functionalized polymer resin are added to the cellulosic fiber simultaneously. 5. The method of claim 1 , wherein the anionic polyacrylamide resin and the aldehyde-functionalized polymer resin are added to the cellulosic fiber sequentially. 6. The method of claim 1 , wherein the weight ratio of aldehyde-functionalized polymer resin to anionic polyacrylamide resin is about 100:1 to about 1:100. 7. The method of claim 1 , wherein the anionic polyacrylamides resin is a copolymer with an overall anionic charge of about 5 to 70 mol %. 8. The method of claim 1 , wherein the anionic polyacrylamides resin has a standard viscosity higher than 1.5 cps. 9. The method of claim 1 , wherein the paper is a paper product that is selected from the group consisting of: a dry paper board, a fine paper, a towel, a tissue, and a newsprint product.
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Frequently asked questions
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- What does patent US9328462B2 cover?
- One or more embodiments include paper, methods of making paper, compositions, and the like, are provided. In various exemplary embodiments described herein, a paper material may be formed by treating a cellulosic fiber or an aqueous pulp slurry with a treatment composition comprising an anionic polyacrylamide resin and an aldehyde-functionalized polymer resin.
- Who is the assignee on this patent?
- Kemira Oyj, Kemira Oyj
- What technology area does this patent fall under?
- Primary CPC classification D21H17/55. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue May 03 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).