Abstract:
The invention concerns a method of manufacturing an organic coating film for forming a transparent super-thin film on the surface of glass, plastics, metals, etc.Using a surface active material containing a halosilane or alkoxysilane group, an organic coating film is formed on the substrate with the surface active material chemically bonded to the substrate surface in a dry reaction atmosphere. A transparent organic coating film is thus formed with a uniform thickness at the namometer level.A dehydrochlorination reaction is brought about on the surface of glass, plastics, metals, etc. using, for example, a chlorosilane- or chlorotitanium-based surface active material in a dry nitrogen or like atmosphere (with a relative humidity of, for example, 35% or below), followed by removal of excess surface active material, thus forming an organic coating film consisting of a monomolecular layer. This monomolecular layer is chemically bonded directly to the substrate and has high peel-off strength.
Abstract:
A method of imparting protective or decorative layer to a substrate includes coating said surface with a hydrolyzable solution of silicon alkoxide in an organic solvent. Next, the solvent is evaporated to yield a polymer film, and the film is cured to yield a uniform protective layer on the substrate surface. The present invention also includes the article produced by such a method.
Abstract:
A coating composition, containing a fluoropolymer, a film-forming adjuvant resin which is different from the fluoropolymer and adapted to react with the group represented by F in the functional organosilane of formula I and which is selected from the group consisting of acrylic resins, polyepoxide resins, polyester resins, aminoplast resins and mixtures thereof; and an amount effective to promote adhesion of a functional organosilane represented by formula I: ##STR1## wherein A represents an organo group containing from 1 to 18 carbon atoms,G represents an organo group containing from 2 to 10 carbon atoms,X represents a hydrolyzable group; andb is an integer from 0 to 2, andF represents amino, polyamino, glycidoxy, mercapto, cyano, allyl, vinyl, urethano, halo, isocyanato, ureido, imidazolinyl, acrylato or methacrylato.
Abstract:
This invention relates to a process for improving heat insulating articles containing silicon dioxide having a surface area of at least 50 m.sup.2 /g, opacifiers and, if desired, inorganic fibers which comprises treating the surface of the insulating articles with at least one organosilicon compound containing from 1 to 4 silicon atoms to render the same hydrophobic.
Abstract:
THE APPLICATION TO THE MORTAR SURFACE OF BRICK OF A WATER REPELLANT MATERIAL AT A CONCENTRATION IN THE RANGE OF ABOUT 0.5% TO LESS THAN 5%, WITH A PREFERRED CONCENTRATION OF 1%.
Abstract:
A resin-impregnated boron nitride body includes a polymer-derived boron nitride and a resin. A process for manufacturing such a resin-impregnated boron nitride body includes: polymerizing a boron nitride molecular precursor into a preceramic polymer shaping the preceramic polymer to form an infusible polymer body; submitting the polymer body to a thermal treatment to obtain a boron nitride body; impregnating the boron nitride body with a resin; and curing the resin.
Abstract:
The present invention relates to a heat-cooker having excellent durability wherein a silane compound-based transparent coating layer containing filler is formed on the external surface of a ceramic coating layer of a cooking surface of a heat-cooker. Compared to conventional porcelain enamel based heat-cookers, the cooking utensil of the present invention is lighter, and the transparent coating layer protects the ceramic coating layer to thereby improve durability and provide excellent non-stick characteristics.