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Encapsulating sealant compositions for friable insulation materials

John Arpin
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TLDR
In this article, the authors proposed a penetrating sealant composition useful for encapsulating a friable material which is designed to be stored in two parts, one of said parts comprising an aqueous silicate solution comprising a water soluble alkali metal silicate such as potassium silicate or a mixture of potassium silicates and sodium silicate and a cationic or nonionic surfactant and the other part comprising an acrylic polymer dispersion component comprising a acrylic polymer latex and a reagent that reacts with alkaline metal silicates.
Abstract
A penetrating sealant composition useful for encapsulating a friable material which is designed to be stored in two parts, one of said parts comprising an aqueous silicate solution comprising a water soluble alkali metal silicate such as potassium silicate or a mixture of potassium silicate and sodium silicate and a cationic or nonionic surfactant and the other part comprising an acrylic polymer dispersion component comprising an acrylic polymer latex and a reagent that reacts with alkali metal silicate. The two parts are mixed to provide a blended composition having a solids content between 20 and 65 weight percent. The sealant composition is particularly useful for friable asbestos-containing materials and the cured sealant provides a physically tough flexible barrier.

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Mineralogical conversion of asbestos waste

Roger B. Ek
TL;DR: In this paper, a process for the mineralogical conversion of waste asbestos to a non-asbestos product is described, where the waste asbestos is treated with a mineralizing agent and then heated for a period of time sufficient to convert the asbestos to the non asbestos product.
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Encapsulating a substrate

TL;DR: In this article, a layer of coating bonded to a substrate is encapsulated to prevent portions of the layer from becoming detached and randomly distributed, which is accomplished by applying a first layer of an adhesive to the exposed surface of a layer to be encapsulated.
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Method of encapsulating a coated substrate

TL;DR: In this paper, a layer or coating bonded to a substrate is encapsulated to prevent portions of the layer from becoming detached and randomly distributed, which is accomplished by applying a first layer of an adhesive to the exposed surface of a layer to be encapsulated.
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Encapsulating material for asbestos tile

TL;DR: In this paper, a self-levelling continuous coating composition is described for a surface of flooring material which contains asbestos, which can be applied in a single step application and does not require mixing of separate ingredients at the workplace.
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Emulsion based coatings and a method using an emulsion based coating to seal asbestos containing soils

TL;DR: In this paper, a coating composition and a process for sealing an asbestos-containing matrix is described. But the method is not suitable for the application of medical applications, as it requires the use of a polymer and an antimicrobial agent and leaves the coating and matrix in place.
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Foundry mold or core compositions and method

TL;DR: In this article, the authors present a method for producing foundry sand cores or molds of initial high strength but with essentially no strength after casting metals above 700° C. which involves shaping and setting a composition containing a binder comprising sodium, potassium, or lithium silicate and sufficient amorphous silica.
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Coating composition for thick coating

TL;DR: A coating composition for thick coating prepared by adding an aggregate to a coating liquid containing 5 to 40% by weight as SiO2 of a coloidal silica and 3 to 40 percent by weight of dissolved and/or finely dispersed organic polymer, having an SiOsub. 2 /M2 O mole ratio (in which M is a monovalent alkali metal atom) of at least 7, and having a viscosity lower than 100 c.p. at 20° C when kept in the sealed state at 50° C for 10 days as mentioned in this paper.
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Method for coating a textile substrate

TL;DR: In this article, the method for coating textile substrates such as carpets and textile fabrics with a latex backing is improved by replacing up to about 40% by weight of the normally employed latex solids in the coating composition with an alkali metal silicate extender such as sodium silicate, and further adding a latex compatible metal compound which will react with the silicates extender to render the silicate values less water soluble.
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Electrical conductive lacquer

TL;DR: In this paper, an electrically conductive lacquer adapted for use in heating elements is prepared by dispersing electricallyconductive particles in an aqueous plastic dispersion in an annealing silicate solution.