04986882 is referenced by 90 patents and cites 9 patents.

Processes are described for making highly absorbent tissues and towels by wet-laying pulps comprising particular polycarboxylate polymer-modified fibrous pulps such as mildly hydrolyzed methyl acrylate-grafted softwood kraft pulps; these pulps have distinct protonated and alkali-metal-cation-exchanged states. The wet-laying processes are adapted to exploit the very different behavior of the polymer-modified fibrous pulps in function of the two states. The preferred wet-laying processes described herein are continuous processes embodying one or more on-line chemical treatment steps which chemically switch state of the polymer-modified fibrous pulp component in a wet web on the papermaking machine to improve the processing thereof by averting or minimizing tendencies to mechanically or thermally degrade.

Title
Absorbent paper comprising polymer-modified fibrous pulps and wet-laying process for the production thereof
Application Number
7/378154
Publication Number
4986882
Application Date
July 11, 1989
Publication Date
January 22, 1991
Inventor
Seyed E Seyed Rezai
Fairfield
OH, US
Larry N Mackey
Fairfield
OH, US
Agent
Richard C Witte
Jerry J Yetter
Lars S Johnson
Assignee
The Proctor & Gamble Company
OH, US
IPC
D21H 13/02
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