Abstract:
A coating composition is disclosed in which the binder comprises a hydraulic cement and a saccharide such as sucrose. The hydraulic cement is, for example, a mixture of hydrated lime and ordinary Portland cement.
Abstract:
The invention relates to a method for producing aqueous dispersions of (co)polymers using a polymer with cationic functionality, optionally with the addition of the usual additives. The polymer with cationic functionality is obtained by (co)polymerising olefinically unsaturated (co)monomers in an aqueous medium, at least one of said (co)monomers having a cationic functionality. Other (co)monomers are added and the polymerisation is carried out in the presence of suitable initiators. The polymers and/or (co)monomers are chosen and the method is controlled in such a way that a (co)polymer particle is formed with heterogeneous morphology and the resulting dispersed (co)polymer has a glass transition temperature Tg of more than approximately 50 DEG C. The invention also relates to a method for forming the polymer with cationic functionality in the presence of a seed in situ, and to redispersible powders and their use.
Abstract:
The surface-coating composition is water-free and comprises at least 37.5 % by weight (based on the total weight of the composition) of a cement as active filler, a film-former or binder, and a non-aqueous solvent or diluent, the particle size of the cement being not greater than 200 microns and the proportion by weight of cement being greater than the total proportion by weight of any other inorganic solids in the composition. The composition is applied to a substrate (such as metal, wood, plastics, or a building material) without addition of water, and provides a coating having enhanced resistance to corrosion and to ultra-violet degradation. The composite material also has enhanced resistance to corrosion and to ultra-violet degradation and comprises a fibre-reinforced plastics material and at least 37.5 % by weight (disregarding the fibre reinforcement) of a cement as active filler, the particle size of the cement being not greater than 200 microns.
Abstract:
An engineered composite building material, such as fiber cement, having one or more engineered sub-surface regions designed to provide the building material with improved moisture ingress resistance, paint adhesion, and other mechanical properties is provided. The sub-surface region has a cement-polymer matrix formed by introducing an impregnating agent into the pores of the substrate. The composite building material may be formed by applying impregnating agents to the subsurface regions of the substrate to form chemical and/or mechanical bonds with the matrix of the building material, the reinforcement fibers, and/or the surface coatings applied to the material. The thickness of the sub-surface regions may be controlled by varying the viscosity and porosity of the building material substrate. The cement-polymer building material has enhanced durability, weather resistance, strength, and stiffness.
Abstract:
Enduit en poudre comprenant un colorant choisi de façon que, à l'état de poudre sèche, l'enduit soit d'une première couleur, qu'il prenne une autre couleur au contact de l'eau utilisée lors d'un gâchage, dudit enduit et qu'il soit de nouveau de la première couleur après séchage de l'enduit.
Abstract:
The invention relates to an anhydrous cementitious coating composition consisting of a hydraulic cement in the range 30-70 % w/w polymeric particles having a Tg less than 25 DEG C in the range 5-25 % w/w, and mineral extender particles in the range 5-50 % w/w. The cement to mineral extender particles are in the weight ratio 5:1 to 1:1. When mixed with potable water these compositions form useful decorative or protective coating compositions for application to a range of substrates.
Abstract:
The present invention relates to a coating composition and top coating composition, wherein the base coating composition consists of 5 to 35 wt.% of the white cement, 20 to 50 wt.% of the calcium carbonate, 5 to 35 wt.% of silicand, 5 to 35 wt.% of slag, 3 to 25 wt.% of the powdery redispersible resin, 0.05 to 0.3 wt.% of the thickener, and 0.1 to 0.5 wt.% of antifoaming agent; and the top coating agent consists of the silane derivative, colloidal silica and water soluble lower alcohol and water. The base composition consisting of the inorganic material except the redispersible resin shows the excellent binding strength and does not show the efflorescence phenomenon and peeling of the coating material from the surface of the tile or top coating composition consisting of silane derivative, colloidal silica, etc. shows the excellent binding strength and ventilating property after coating.
Abstract:
Ein Gegenstand der Erfindung ist die Verwendung von Beschichtungsmitteln auf Basis von einem oder mehreren mineralischen Bindemitteln, einem oder mehreren Polymeren, einem oder mehreren Füllstoffen und gegebenenfalls einem oder mehreren Additiven zur Herstellung von Dachbeschichtungen, wobei die Beschichtungsmittel mindestens 50 Gew.-% Polymere, bezogen auf das Trockengewicht der Polymere und der mineralischen Bindemittel enthalten.