CEMENT GRINDING ADDITIVE FOR ENABLING PVC EQUIPMENT USE

The present invention provides cement grinding additive compositions and methods which allow a PVC-safe, powerful, and robust defoaming agent to be uniformly dispersed throughout a broad concentration range while retaining storage stability even in cases wherein the defoaming agent is highly diluted...

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Hauptverfasser:	JARDINE, LESLIE A, CHEUNG, JOSEPHINE H
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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creator	JARDINE, LESLIE A CHEUNG, JOSEPHINE H
description	The present invention provides cement grinding additive compositions and methods which allow a PVC-safe, powerful, and robust defoaming agent to be uniformly dispersed throughout a broad concentration range while retaining storage stability even in cases wherein the defoaming agent is highly diluted. Exemplary cement grinding additive compositions comprise at least one amine cement grinding additive; an air detrainer selected from the group consisting of (i) ethoxylated, propoxylated fatty alcohol or alkylphenol, (ii) polyalkoxylated polyalkylene polyamine, or (iii) a mixture thereof. La présente invention porte sur des compositions d'additifs de mouture du ciment et sur des procédés qui permettent à un agent antimoussant résistant au PVC, puissant et robuste, d'être uniformément dispersé sur une large gamme de concentrations, tout en conservant sa stabilité au stockage même dans les cas dans lesquels l'agent antimoussant est hautement dilué. Les exemples de compositions d'additifs de mouture du ciment comprennent au moins un additif de mouture du ciment de type amine; un désentraîneur d'air choisi dans le groupe consistant en (i) les alcools gras ou alkylphénols éthoxylés, propoxylés, (ii) les polyalkylènepolyamines polyalcoxylées, ou (iii) un mélange de ceux-ci.
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Exemplary cement grinding additive compositions comprise at least one amine cement grinding additive; an air detrainer selected from the group consisting of (i) ethoxylated, propoxylated fatty alcohol or alkylphenol, (ii) polyalkoxylated polyalkylene polyamine, or (iii) a mixture thereof. La présente invention porte sur des compositions d'additifs de mouture du ciment et sur des procédés qui permettent à un agent antimoussant résistant au PVC, puissant et robuste, d'être uniformément dispersé sur une large gamme de concentrations, tout en conservant sa stabilité au stockage même dans les cas dans lesquels l'agent antimoussant est hautement dilué. 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subjects	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
title	CEMENT GRINDING ADDITIVE FOR ENABLING PVC EQUIPMENT USE
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