摘要:
Provided is a coating film that can more reliably exhibit an excellent water repellency and an excellent oil repellency. This water- and oil-repellent coating film is a coating film formed on a surface of a material in order to impart water repellency and oil repellency, wherein (1) the coating film contains a metal oxide-containing composite particle; (2) the composite particle contains a) a metal oxide particle and b) a covering layer that contains a polyfluoroalkyl methacrylate resin and is formed on the surface of the metal oxide particle; and (3) a value obtained by dividing the fluorine content (weight %) of the composite particle by a surface area (m2/g) of the metal oxide particle is 0.025 to 0.180.
摘要:
A process for preparing a cyclic siloxane copolymer, a water repellent composition and the use for treating porous substrates like concrete, especially reinforced concrete.
摘要:
A coating composition including an alkali metal silicate, a wetting agent, and a hydrophilic antifog agent forms an antifog coating on a substrate. The coating may be applied to the surface of a film from an aqueous dispersion of the ingredients, followed by drying to form a composite film.
摘要:
The present invention relates to corrosion inhibiting, freeze point lowering compositions comprising a mixture of a freeze point lowering agent and a corrosion inhibiting compound. The corrosion inhibiting, freeze point lowering compositions can be used in deicing brines or deicing solutions.
摘要:
A method for modifying a substrate surface using a silylating agent that is capable of successfully modifying the substrate surface regardless of the substrate material; a modifying film which successfully adheres to a substrate surface regardless of the material of the substrate and provides a substrate that is surface-modified to a desired extent; and a coating solution which is capable of forming a coating film on a substrate surface. A silane compound layer is formed on the surface of the coating film by a silylating agent and is firmly affixed thereto. The surface of a substrate is treated with a metal compound that is capable of producing a hydroxyl group by hydrolysis. The substrate surface which has been treated with the metal compound is then treated with a silylating agent.
摘要:
A surface treatment was conducted by using a liquid chemical containing a water-repellent protective film forming agent represented by the following general formula [1], subsequent to a step of cleaning a metal-based wafer and prior to a step of drying the wafer. (R1 represents a C1-C18 monovalent hydrocarbon group the hydrogen elements of which may partially or entirely be replaced with a fluorine element(s). R2 mutually independently represents a monovalent organic group having a C1-C18 hydrocarbon group the hydrogen elements of which may partially or entirely be replaced with a fluorine element(s). “a” is an integer of from 0 to 2.)
摘要:
Coating compositions are described comprising an aqueous polymeric dispersion; a crosslinker; and an acid or salt of a polyalkylene oxide. Also described are articles comprising the dried and cured coating composition disposed on a substrate as well as a method a providing an anti-fog coating on a substrate.
摘要:
A process for transferring heat from a heat source to a heat sink, comprising using as heat transfer medium a composition comprising: at least one fluorinated fluid free from functional groups (fluid (H)); at least one functional (per)fluoropolyether (functional PFPE(1)) comprising recurring units (R1), said recurring units comprising at least one ether linkage in the main chain and at least one fluorine atom (fluoropolyoxyalkylene chain), and at least one functional end group chosen between —COOH and —CONH2; at least one functional (per)fluoropolyether (functional PFPE(2)) comprising recurring units (R1) as defined above and at least one functional end group chosen between —COCF3 and its hydroxylated derivative —C(OH)2CF3.
摘要:
The invention relates to a solution and to methods for producing the solution comprising propylfunctional alkaline siliconates, silicates and, optionally, the cocondensation products thereof.
摘要:
A super hydrophobic and antistatic brake dust repellent composition using solvents, adhesion promoter, and hydrophobic inorganic nano particles as a main ingredient is provided. Embodiments of the inventive formulation provide a composition/coating, and a process for protecting various surfaces from the appearance of soil, brake dust, grime, muddy water marks, and corrosion. The applied formulation forms an essentially transparent, detachable, and anti-graffiti protective coating on a receptive surface. Embodiments of the coating film are clearly transparent, and retain the aesthetic appeal of the underneath painted film. The composition/coating acts as a self-cleaning coating so it reduces a adsorption of dirt, other contaminants, muddy water, etc. The coating can be applied at room temperature, and within 120 minutes super hydrophobicity can be achieved. The composition may be applied by spray on any type of surface of a wheel including plastic and metal alloy wheels, painted parts, ceramic, and mild steel substrate.