Zinc oxide particles which have been modified with phosphonocarboxylic acid and use of zinc oxide particles

摘要

Nanoscale ZnO particles are used in aqueous binder systems for increasing the blocking resistance, for reducing the drying time and/or for increasing the resistance to chemicals, detergents, heat, weathering or biological assault on the dried or cured systems. Described further more are nanoscale zinc oxide particles surface-modified with phosphonocarboxylic acid, and their use.

主权项

1. A method of reducing the drying time and/or increasing the blocking resistance and/or increasing the resistance against chemicals, detergents, heat, weathering and/or biological assault of a dried and/or cured aqueous binder system, wherein the method comprises combining the aqueous binder system with nanoscale ZnO particles comprising nanoscale ZnO particles which have been surface-modified with at least one of a phosphonocarboxylic acid and a salt thereof.