PRODUCTION OF COPOLYMER LATEX AND LATEX PRODUCED THEREBY

PURPOSE:To obtain a latex excellent in adhesiveness and useful for improving the pick strength of coated printing paper by emulsion-polymerizing a conjugated diene, an ethylenically unsaturated carboxylic acid and other monomers by using a specified ester as a chain transfer agent. CONSTITUTION:A la...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MUROI TOSHIMASA, TSURUMI MICHIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER LAUNDERING 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 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To obtain a latex excellent in adhesiveness and useful for improving the pick strength of coated printing paper by emulsion-polymerizing a conjugated diene, an ethylenically unsaturated carboxylic acid and other monomers by using a specified ester as a chain transfer agent. CONSTITUTION:A latex is produced by emulsion-polymerizing 10-60wt.% conjugated diene, 1-15wt.% ethylenically unsaturated carboxylic acid and 25-89wt.% other monomers copolymerizable therewith by using 0.01-5.0wt.%, based on 100 pts.wt. said monomer, of an alkyl thioglycolate of the formula (wherein R is a 2-18C alkyl) as a chain transfer agent. The particle diameter of the latex can be controlled by the rate of the surfactant and/or seed latex used, and as this rate increases, the particle diameter of the latex formed generally decreases. A desirable range of the particle diameter is 0.05-1mum.