PROCEDIMIENTO PARA LA OBTENCION DE SEPIOLITAS ESTERIFICADAS SUPERFICIALMENTE CON ACIDOS ORGANICOS COMO VIA DE MEJORAR LAS PROPIEDADES TECNOLOGICAS DE LOS COMPUESTOS TERMOPLASTI- COS CRISTALINOS QUE LAS CONTIENEN

摘要

The process for improving the properties of crystalline thermoplastic composites contg. sepiolite consists of treating the sepiolite in benzne suspension at b. pt. with an aliphatic mono-carboxylic acid in presence of a condensn. catalyst, e.g. p-toluene sulphonic acid, for 1-2 hours, followed by filtration, washing and drying in vacuum. It is carried out in a double chamber reactor, through which circulates a heating fluid at 120 deg. C.