Polymer product in particle form and its use

The invention relates to a water-soluble polymer product in particle form, comprising amphoteric polyacrylamide, which is obtained by polymerising acrylamide together with anionic and cationic monomers. The amphoteric polyacrylamide has a mass average molecular weight MW of 1500000-6000000 g/mol, an...

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Bibliographic Details
Main Authors KARPPI, ASKO, HIETANIEMI, MATTI, STRENGELL, KIMMO, LEPO, ANNELI
Format Patent
LanguageChinese
English
Published 01.11.2016
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
IMPREGNATING OR COATING OF PAPER
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Summary:The invention relates to a water-soluble polymer product in particle form, comprising amphoteric polyacrylamide, which is obtained by polymerising acrylamide together with anionic and cationic monomers. The amphoteric polyacrylamide has a mass average molecular weight MW of 1500000-6000000 g/mol, and a total ionicity of 4 - 15 mol-%, whereby the polymer product has a polymer content of at least 60 weight-%. The invention relates also to uses of the polymer product in paper and board making.
Bibliography:Application Number: TW20165102292