VINYL ACETATE/ETHYLENE COPOLYMER EMULSION IMPROVED IN WET VISCOSITY

In a vinyl acetate-ethylene copolymer emulsion prepared by the aqueous emulsion copolymerization of vinyl acetate and ethylene in the presence of a polyvinyl alcohol stabilizing system, the improvement which comprises a vinyl acetate-ethylene copolymer emulsion prepared in the presence of a stabiliz...

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Bibliographische Detailangaben
Hauptverfasser:	UIRIAMU EDOWAADO RENII, CHIYUEE CHII RII
Format:	Patent
Sprache:	eng
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:	In a vinyl acetate-ethylene copolymer emulsion prepared by the aqueous emulsion copolymerization of vinyl acetate and ethylene in the presence of a polyvinyl alcohol stabilizing system, the improvement which comprises a vinyl acetate-ethylene copolymer emulsion prepared in the presence of a stabilizing system consisting essentially of: (a) 0.2 to 1.5 wt% low molecular weight, partially hydrolyzed polyvinyl alcohol, (b) 0.5 to 2.5 wt% medium molecular weight, partially hydrolyzed polyvinyl alcohol, and (c) 1 to 4 wt% medium molecular weight and/or high molecular weight, fully hydrolyzed polyvinyl alcohol, the weight percentages based on vinyl acetate monomer.