HIGHLY POLYMERIZED MODIFIED POLYVINYL ALCOHOL HAVING SULFONIC ACID GROUP, MANUFACTURE THEREOF AND USE THEREOF

PURPOSE:To obtain the title modified polyvinyl alcohol suitable for emulsifiers, adhesives, etc., by copolymerizing an N-sulfoalkyl(meth)acrylamide and a vinyl ester in a small amount of an alcohol and saponifying the copolymer. CONSTITUTION:An N-sulfoalkyl(meth)acrylamide of formula I (wherein R1 i...

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Bibliographische Detailangaben
Hauptverfasser:	MARUHASHI KIICHI, NAKAGAWA SUMIO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER INKS LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES 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 TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the title modified polyvinyl alcohol suitable for emulsifiers, adhesives, etc., by copolymerizing an N-sulfoalkyl(meth)acrylamide and a vinyl ester in a small amount of an alcohol and saponifying the copolymer. CONSTITUTION:An N-sulfoalkyl(meth)acrylamide of formula I (wherein R1 is H or methyl; R2 is alkylene; and M is H or an alkali metal) and a vinyl ester are copolymerized in an alcohol solvent in an amount of 50% or less based on the weight of the vinyl ester, and the resulting copolymer is saponified. Thereby, a highly polymerized polyvinyl alcohol having sulfonic acid groups is obtained which comprises N-sulfoalkyl(meth)acrylamide repeating units of formula II, vinyl ester repeating units of formula III (wherein R3 is alkyl) and vinyl alcohol repeating units of formula IV (a 4% aqueous solution of which has a viscosity of 5cP or above at 20 deg.C).