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Process for enhancing dry strength of paper by treatment with vinylamine-containing polymers and acrylamide containing polymers

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Title:
Process for enhancing dry strength of paper by treatment with vinylamine-containing polymers and acrylamide containing polymers
Author: MCKAY JONATHAN M ; BRUNGARDT CLEMENT L ; RIEHLE RICHARD J
Subjects: IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
Description: A process is disclosed for the production of paper with enhanced dry strength comprising adding to the wet end of a paper machine, (a) a vinylamine-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 750,000 dalions and (b) an amphoteric or cationic acrylamide-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 1,500,000 daltons, wherein the sum of the anionic and cationic monomers comprises at least 5% on a molar basis of the composition of the acrylamide-containing polymer.
Creation Date: 2012
Language: Chinese;English
Source: esp@cenet

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