Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1984-03-26
1987-11-17
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621681, 162169, 162183, D21H 302, D21H 332
Patent
active
047072210
ABSTRACT:
A process for preparing a sheet with improved stiffness by mixing a fiber, a latex having minimum film forming conditions greater than the conditions the sheet reaches during drying and a fugitive coalescing agent. The mixture is collected and dried under conditions less than the minimum film forming conditions of the latex. The process enables hard latexes to be employed which do not form films under the drying conditions of the sheet whereby the hard latexes can contribute to the stiffness of the final sheet. A sheet prepared by the process is also provided.
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Beer James J.
Lee Do I.
Chin Peter
The Dow Chemical Company
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