DISPERSAO FINA AQUOSA DE UM SILICATO EM CAMADA ORGANOFILO,PROCESSO PARA A SUA PREPARACAO,PAPEL OU PAPELAO,MASSA DE REVESTIMENTO E ADITIVO DE DESLIZAMENTO

摘要

The invention relates to an aqueous fine dispersion of an organophilic sheet silicate which is composed of a sheet silicate which is capable of cation exchange and of a quaternary organic onium salt reacted therewith, and contains 3 to 30% by weight, based on the organophilic sheet silicate, of polyvinyl alcohol. This fine dispersion is suitable as coating composition for paper and board and as lubricant additive for conventional coating compositions.