Invention Grant
- Patent Title: Method of increasing paper strength using an amine containing polymer composition
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Application No.: US14507208Application Date: 2014-10-06
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Publication No.: US09702086B2Publication Date: 2017-07-11
- Inventor: David J. Castro , Robert M. Lowe , Mei Liu
- Applicant: ECOLAB USA INC.
- Applicant Address: US MN St. Paul
- Assignee: ECOLAB USA INC.
- Current Assignee: ECOLAB USA INC.
- Current Assignee Address: US MN St. Paul
- Agency: Brinks Gilson & Lione
- Agent Eric D. Babych
- Main IPC: D21H17/37
- IPC: D21H17/37 ; D21H17/28 ; D21H23/24 ; D21H17/33
Abstract:
The invention provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine containing polymer. The amine containing polymer interacts with materials such as GPAM or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.
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