JP2971240B

A method for the fabrication of water-repellent hardened moldings wherein the diorganopolysiloxane is not discharged into the effluent water during the molding or forming process and the molding itself is free of nonuniformities in its water repellency. The method for the preparation of water-repell...

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Bibliographic Details
Main Authors OSANAWA TSUTOMU, ONA ISAO
Format Patent
LanguageEnglish
Published 02.11.1999
Edition6
Subjects
ADHESIVES
ARTIFICIAL STONE
BUILDING
CEILINGS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
DYES
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
LIME, MAGNESIA
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
REFRACTORIES
ROOFS
SLAG
TREATMENT OF NATURAL STONE
WALLS, e.g. PARTITIONS
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Summary:A method for the fabrication of water-repellent hardened moldings wherein the diorganopolysiloxane is not discharged into the effluent water during the molding or forming process and the molding itself is free of nonuniformities in its water repellency. The method for the preparation of water-repellent hardened moldings includes forming a slurry of a mixture including a calcareous raw material and a siliceous raw material in an arbitrary quantity of water; emulsifying a diorganopolysiloxane using nonionic surfactant and adding this emulsion to the slurry at a temperature at or above the cloud point of the nonionic surfactant; subsequentially draining off the water, then molding or forming, and finally drying or steam-curing to produce the water-repellent hardened molding.
Bibliography:Application Number: JP19920096978