Polyvinyl ester dispersion with metal salt hydrosols as precipitation basis
AssigneeClariant GmbH
InventorsMartin Jakob, Heinz Hennemann, Volker Matz
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Abstract
Polyvinyl ester dispersions comprising a hydrosol of a complex salt of a metal from subgroup 4 of the Periodic Table of the Elements with an organic .alpha.-hydroxy and/or .alpha.-oxo acid as seed base, which hydrosol comprises a surface-active substance, are suitable as adhesive and coating compositions.
Claims11
A hydrosol of a complex salt of a metal from subgroup 4 of the Periodic Table of the Elements with an organic .alpha.-hydroxy and/or .alpha.-oxo acid, which hydrosol comprises a surface-active substance.
A polyvinyl ester dispersion which is obtainable by emulsion polymerization of at least one vinyl ester monomer and, if desired, further copolymerizable monomers in the presence of a hydrosol of a complex salt of a metal from subgroup 4 of the Periodic Table of the Elements with an organic .alpha.-hydroxy and/or .alpha.-oxo acid, which hydrosol comprises a surface-active substance.
A process for the preparation of a polyvinyl ester dispersion by continuous or discontinuous, free-radical emulsion polymerization of at least one vinyl ester monomer and, if desired, further copolymerizable monomers in the presence of a hydrosol of a complex salt of a metal from subgroup 4 of the Periodic Table of the Elements with an organic .alpha.-hydroxy and/or .alpha.-oxo acid, which hydrosol comprises a surface-active substance.
Dependencies are inferred from the claim text.