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Application filed by Rhone Poulenc ChimiefiledCriticalRhone Poulenc Chimie
Priority to MYPI94002990ApriorityCriticalpatent/MY112578A/en
Publication of MY112578ApublicationCriticalpatent/MY112578A/en
NOVEL SILICAS IN THE FONN OF POWDER AND SPHERICAL BEADS OR GRANULES. THE SILICAS ARE CHARACTERIZED BY HAVING A SPECIFIC CTAB SURFACE OF 100-140 M2/G, A SMALL MEDIAN DIAMETER, FOLLOWING DISAGGREGATION BY ULTRASOUND MEANS, AND OPTIONALLY, A POROUS DISTRIBUTION SO THAT THE POROUS VOLUME OCCUPIED BY THE PORES WHOSE DIAMETER IS 175-275 A IS LESS THAN 55OF THE POROUS VOLUME OCCUPIED BY THE PORES HAVING DIAMETERS OF 400 A OR LESS. THE INVENTION ALSO CONCERNS A METHOD FOR THE PREPARATION OF SAID SILICAS AND THEIR USE AS REINFORCING FILLERS FORELASTOMERS.
Composite hydrogel of regular particle shape, method of obtaining same, agent for disactivating bacteria present in aqueous media, including drinking water, and catalyst for free-radical polymerisation