Method and Composition for Improved Temporary Wet Strength
Zhang; Naijie ; et al.
U.S. patent application number 13/362279 was filed with the patent office on 2012-10-11 for method and composition for improved temporary wet strength. This patent application is currently assigned to KEMIRA OYJ. Invention is credited to Robert J. Proverb, Michael Ryan, Naijie Zhang.
| Application Number | 20120255698 13/362279 |
| Document ID | / |
| Family ID | 36694194 |
| Filed Date | 2012-10-11 |
| United States Patent Application | 20120255698 |
| Kind Code | A1 |
| Zhang; Naijie ; et al. | October 11, 2012 |
Method and Composition for Improved Temporary Wet Strength
Abstract
A new process to make high solids polymer backbone with low molecular weight and narrow molecular weight distribution has been developed by a continuous polymerization processes under refluxing conditions. In this process, a mixture of acrylamide monomer, chain transfer agent and initiator is simultaneously and continuously added to the heel of aqueous solution under refluxing conditions.
| Inventors: | Zhang; Naijie; (Ridgefield, CT) ; Ryan; Michael; (Newtown, CT) ; Proverb; Robert J.; (Woodbury, CT) |
| Assignee: | KEMIRA OYJ Helsinki FI |
| Family ID: | 36694194 |
| Appl. No.: | 13/362279 |
| Filed: | January 31, 2012 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | ||
|---|---|---|---|---|
| 11887045 | Nov 11, 2008 | |||
| PCT/US2006/009681 | Mar 17, 2006 | |||
| 13362279 | ||||
| 60664780 | Mar 24, 2005 | |||
| Current U.S. Class: | 162/164.6 |
| Current CPC Class: | C08F 2800/20 20130101; D21H 21/20 20130101; C08F 8/44 20130101; C08F 2810/20 20130101; C08F 8/44 20130101; C08F 220/56 20130101; C08F 8/48 20130101; C08F 220/56 20130101; D21H 17/375 20130101; C08F 220/56 20130101; C08F 226/02 20130101; C08F 226/02 20130101; C08F 222/385 20 |
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