Zinc oxide particle modified with phosphonocarboxylic acid and use of same

摘要

Use of nanoscale zinc oxide particles in an aqueous binder system to reduce drying times or to increase blocking resistance of the dried or cured binder system, is claimed. Independent claims are also included for: (1) a surface modified nanoscale zinc oxide particle comprising zinc oxide particle with its surface modified with phosphonocarboxylic acid and/or its salt; and (2) producing the surface modified nanoscale zinc oxide particle comprising subjecting the zinc oxide particle in a liquid medium to dispersion treatment in the presence of a phosphonocarboxylic acid and/or its salt.