Patent classifications
C09D183/16
Method for applying high performance silicon-based coating compositions
Provided herein is a method for coating a surface. The method comprises providing a towelette moistened with a mixture of constituents to form a non-aqueous silicon-based composition comprising 7% to 80% (w/w of the total composition) polysilazane, 1% to 10% (w/w of the total composition) polysilane, 0.2% to 1% (w/w of the total composition) polysiloxane, and 20% to 70% (w/w of the total composition) at least one organic solvent; wherein polysilazane is present in a 10:1 to 110:1 weight ratio to polysiloxane; and wherein the polysilane is of a formula (R.sub.1R.sub.2Si).sub.n, wherein n is greater than 1, and wherein R.sub.1 and R.sub.2 are the same or different and are chosen from alkyl, alkenyl, cycloalkyl, alkylamino, aryl, aralkyl, or alkylsilyl. The mixture from the towelette to form a coating on a surface and the coating is cured ambiently without additional heat. Also provided are towelettes containing the mixture.
Method for applying high performance silicon-based coating compositions
Provided herein is a method for coating a surface. The method comprises providing a towelette moistened with a mixture of constituents to form a non-aqueous silicon-based composition comprising 7% to 80% (w/w of the total composition) polysilazane, 1% to 10% (w/w of the total composition) polysilane, 0.2% to 1% (w/w of the total composition) polysiloxane, and 20% to 70% (w/w of the total composition) at least one organic solvent; wherein polysilazane is present in a 10:1 to 110:1 weight ratio to polysiloxane; and wherein the polysilane is of a formula (R.sub.1R.sub.2Si).sub.n, wherein n is greater than 1, and wherein R.sub.1 and R.sub.2 are the same or different and are chosen from alkyl, alkenyl, cycloalkyl, alkylamino, aryl, aralkyl, or alkylsilyl. The mixture from the towelette to form a coating on a surface and the coating is cured ambiently without additional heat. Also provided are towelettes containing the mixture.
Insulation precursors, rocket motors, and related methods
An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
Insulation precursors, rocket motors, and related methods
An insulation material includes a matrix comprising a reaction product formed from a silicon carbide precursor resin and a silicon dioxide precursor resin. At least one filler, such as hollow glass microspheres and/or carbon fiber is dispersed within the matrix. A rocket motor includes a case, the insulation material within and bonded to the case, and a solid propellant within the case. An insulation precursor includes a silicon carbide precursor resin, a silicon dioxide precursor resin, and the at least one filler. Related methods are also disclosed.
GLASS, GLASS-CERAMIC, AND CERAMIC ARTICLES WITH AN EASY-TO-CLEAN COATING AND METHODS OF MAKING THE SAME
An article and method of manufacturing an article is provided. The article includes a glass, glass-ceramic, or ceramic substrate having a primary surface with an anti-reflective coating disposed over the primary surface. An intermediate coating containing a cured polysilazane or a cured silsesquioxane material is disposed over the anti-reflective coating. An easy-to-clean (ETC) coating containing a polymer and/or fluorinated material is disposed directly on the intermediate coating. The method of manufacturing the article includes curing an intermediate coating solution containing a polysilazane or a silsesquioxane to form an intermediate coating at a temperature of about 300° C. or less.
GLASS, GLASS-CERAMIC, AND CERAMIC ARTICLES WITH AN EASY-TO-CLEAN COATING AND METHODS OF MAKING THE SAME
An article and method of manufacturing an article is provided. The article includes a glass, glass-ceramic, or ceramic substrate having a primary surface with an anti-reflective coating disposed over the primary surface. An intermediate coating containing a cured polysilazane or a cured silsesquioxane material is disposed over the anti-reflective coating. An easy-to-clean (ETC) coating containing a polymer and/or fluorinated material is disposed directly on the intermediate coating. The method of manufacturing the article includes curing an intermediate coating solution containing a polysilazane or a silsesquioxane to form an intermediate coating at a temperature of about 300° C. or less.
POLYSILAZANE, SILICEOUS FILM-FORMING COMPOSITION COMPRISING THE SAME, AND METHOD FOR PRODUCING SILICEOUS FILM USING THE SAME
A polysilazane having a ratio of the amount of SiH.sub.3 exceeding 0.050 and a ratio of the amount of NH of less than 0.045, based on the amount of aromatic ring hydrogen of xylene when .sup.1H-NMR of a 17% by mass solution of polysilazane dissolved in xylene is measured. A siliceous film-forming composition comprising the polysilazane. A method for producing a siliceous film comprising applying the polysilazane composition above a substrate.
POLYSILAZANE, SILICEOUS FILM-FORMING COMPOSITION COMPRISING THE SAME, AND METHOD FOR PRODUCING SILICEOUS FILM USING THE SAME
A polysilazane having a ratio of the amount of SiH.sub.3 exceeding 0.050 and a ratio of the amount of NH of less than 0.045, based on the amount of aromatic ring hydrogen of xylene when .sup.1H-NMR of a 17% by mass solution of polysilazane dissolved in xylene is measured. A siliceous film-forming composition comprising the polysilazane. A method for producing a siliceous film comprising applying the polysilazane composition above a substrate.
COLORED ANTI-FOULING ANTI-CORROSION SURFACE COATING, USES THEREOF, COLORED ANTI-FOULING ANTI-CORROSION SURFACE LAYER, AND COLORED ANTI-FOULING ANTI-CORROSION METAL
Disclosed are a colored anti-fouling anti-corrosion surface coating, uses thereof, a colored anti-fouling anti-corrosion surface layer, and a colored anti-fouling anti-corrosion metal. The colored anti-fouling anti-corrosion surface coating includes a fluorine-modified polysilazane and a surface-modified pigment; where the fluorine-modified polysilazane accounts for approximately 5-60% in weight percentage (wt %, %). The coating of the present disclosure can be directly reacted and adhered onto a steel material or a non-ferrous metal material without a primer, and can endow a substance to be coated a suitable color and gloss, and can be directly applied to the field which has been completed in the post-market without any heating or processing within a plant.
COLORED ANTI-FOULING ANTI-CORROSION SURFACE COATING, USES THEREOF, COLORED ANTI-FOULING ANTI-CORROSION SURFACE LAYER, AND COLORED ANTI-FOULING ANTI-CORROSION METAL
Disclosed are a colored anti-fouling anti-corrosion surface coating, uses thereof, a colored anti-fouling anti-corrosion surface layer, and a colored anti-fouling anti-corrosion metal. The colored anti-fouling anti-corrosion surface coating includes a fluorine-modified polysilazane and a surface-modified pigment; where the fluorine-modified polysilazane accounts for approximately 5-60% in weight percentage (wt %, %). The coating of the present disclosure can be directly reacted and adhered onto a steel material or a non-ferrous metal material without a primer, and can endow a substance to be coated a suitable color and gloss, and can be directly applied to the field which has been completed in the post-market without any heating or processing within a plant.