DISPERSAO AQUOSA DE ESTER POLIVINILICO PROCESSO PARA A SUA PREPARACAO E SUA APLICACAO

An aqueous polyvinyl ester dispersion having a solids content of 40 to 70 percent by weight and containing 3 to 15 percent by weight (relative to the total amount of polyvinyl ester and additive) of a polyvinyl alcohol and 5 to 60 percent by weight (relative to the total amount of polyvinyl ester an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	EHMANN WERNER, RINNO HELMUT
Format:	Patent
Sprache:	por
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	An aqueous polyvinyl ester dispersion having a solids content of 40 to 70 percent by weight and containing 3 to 15 percent by weight (relative to the total amount of polyvinyl ester and additive) of a polyvinyl alcohol and 5 to 60 percent by weight (relative to the total amount of polyvinyl ester and additive) of a waxy, fatty or oily additive, has excellent adhesive properties. It is prepared by emulsion polymerization of a vinyl ester, if appropriate together with comonomers, in the presence of the said additive or by subsequent distribution of the additive in the dispersion resulting from the emulsion polymerization. The dispersion is particularly suitable for the preparation of adhesives for cellulose-containing materials.