METHOD FOR PRODUCING COPOLYMER LATEX, AND COPOLYMER LATEX

PROBLEM TO BE SOLVED: To provide a method for producing a copolymer latex which is excellent in storage stability, in which substantially no distribution of solid concentration is produced even when stored in low-temperature environment for a long period of time but a homogeneous state is retained.S...

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1. Verfasser:	NAGASAKI KOSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a copolymer latex which is excellent in storage stability, in which substantially no distribution of solid concentration is produced even when stored in low-temperature environment for a long period of time but a homogeneous state is retained.SOLUTION: In the method for producing the copolymer latex, a monomer mixture composed of (a) 20-80 mass% of a conjugate diene-based monomer, (b) 0.5-7 mass% of an ethylenically unsaturated carboxylic acid monomer, and (c) 13-79.5 mass% of another copolymerizable monomer (where (a)+(b)+(c)=100 mass%) is emulsion-polymerized by using 0.01-10 pts.mass of a component (α) (formula) and/or a component (β) (two OH groups in formula are substituted by two OCOCHgroups).