摘要:
Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. These waterproof gypsum panels have many uses, such as, tile backer board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, interior wall and ceiling, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, preferably silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives. Preferably a pre-coated non-woven glass fiber mat is employed to provide the inorganic mineral fibers for the surface reinforcement.
摘要:
The present invention provides a composition for treatment, the composition comprising dispersed in water (i) a fluorinated compound, (ii) a potassium or lithium silicate and (iii) an acrylic polymer. The invention further provides a method of treating substrates with the composition.
摘要:
A coated substrate is configured with one or more cross-linked interfacial zones provided to improve the adhesion between the coating and substrate of the article or between adjacent coating layers. The coating composition contains molecules having at least two reactive functional groups capable of reacting with cross-linking molecules in the substrate and/or molecules in adjacent coating layers. The cross-linked interfacial zones improve the adhesion between coatings and the substrate and between adjacent coating layers.
摘要:
A composition of matter and a solvent system for use in providing a water resistant coating to a surface of a roof is disclosed. The solvent system comprises a chlorinated solvent blend which includes a vegetable oil. The solvent system and coating composition are non-flammable, environmentally friendly and provide an improved, consistent coating when applied to the surface of a roof.
摘要:
A composition of matter and a solvent system for use in providing a water resistant coating to a surface of a roof is disclosed. The solvent system comprises a chlorinated solvent blend. The solvent system and coating composition have no flash point, are non-flammable and provide an improved consistent coating when applied to the surface of a roof.
摘要:
De-polluting, self-cleaning coating compositions are disclosed which comprise an organic binder having dispersed therein photocatalytic titanium dioxide particles substantially in anatase form which have an average crystallite size between about 1 nm and about 150 nm and which preferably have photocatalytic activity in the presence of visible light. Advantageously, the coatings of the invention do not require pre-activation to achieve high initial photocatalytic activity against pollutants in the air, such as NOx compounds.
摘要:
A coated substrate is configured with one or more cross-linked interfacial zones provided to improve the adhesion between the coating and substrate of the article or between adjacent coating layers. The coating composition contains molecules having at least two reactive functional groups capable of reacting with cross-linking molecules in the substrate and/or molecules in adjacent coating layers. The cross-linked interfacial zones improve the adhesion between coatings and the substrate and between adjacent coating layers.
摘要:
A lightweight cementitious composite material includes expanded synthetic polymer particulate having a particle size of between 0.0625 and 0.5 inches. A dispersant coating on said particulate suppresses electrostatic attraction between particulate particles. A matrix surrounds the particulate and is present from 0.25 to 1 pound per gallon of dispersant coated particulate.
摘要:
The invention relates to a method for producing coated mineral shaped bodies by applying an aqueous coating agent containing a polymer dispersion serving as a bonding agent and at least one aqueous styrene maleic anhydride copolymer solution. The shaped body is subsequently hardened and the coating agent is dried. The invention is characterized in that the at least one aqueous styrene maleic anhydride copolymer solution is added to the polymer dispersion after completion of the polymerization. The shaped bodies coated in such a manner exhibit an improved efflorescence behavior. The method is particularly suited for coating roofing tiles and fibrated concrete slabs.
摘要:
Moldings comprise a base element consisting of a cement-bound mineral material, which may be modified with polymers, and a mineral coating present on at least one of the main surfaces of the base element and comprising a polymer-modified mineral material which contains at least one clay mineral as the main component and at least one film-forming, hydrophobic polymer distributed in the mineral material.