Wet strength treated paper and paperboard
US-2015020985-A1 · Jan 22, 2015 · US
Blends of polymers as wet strengthening agents for paper
US8999110B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8999110-B2 |
| Application number | US-201314108492-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2013 |
| Priority date | Dec 19, 2012 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Resin systems and methods for making and using same are provided. The method for making a paper product can include contacting a plurality of pulp fibers with a resin system. The resin system can include a first polyamidoamine-epihalohydrin resin and a second resin that can include a second polyamidoamine-epihalohydrin resin, a urea-formaldehyde resin, or a mixture thereof to produce a paper product. The first resin and the second resin can be sequentially or simultaneously contacted with the plurality of pulp fibers. The period for sequential addition between the first resin and the second resin is about 1 second to about 1 hour.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for making a paper product, comprising: contacting a plurality of pulp fibers with a resin system comprising a polyamidoamine-epihalohydrin resin and a urea-formaldehyde resin to produce a paper product, wherein the polyamidoamine-epihalohydrin resin and the urea-formaldehyde resin are sequentially or simultaneously contacted with the plurality of pulp fibers, and wherein the period for sequential addition between the polyamidoamine-epihalohydrin re…
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- What does patent US8999110B2 cover?
- Resin systems and methods for making and using same are provided. The method for making a paper product can include contacting a plurality of pulp fibers with a resin system. The resin system can include a first polyamidoamine-epihalohydrin resin and a second resin that can include a second polyamidoamine-epihalohydrin resin, a urea-formaldehyde resin, or a mixture thereof to produce a paper pr…
- Who is the assignee on this patent?
- Georgia Pacific Chemicals Llc
- 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 Apr 07 2015 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).