Provided is an aqueous amine-free coating composition including at least one aromatic polymer, wherein the aromatic polymer is in the form of powder having a d.sub.90 less than or equal to 20 μm and in that the aqueous coating composition further includes polar aprotic solvent at a content greater than 0% by weight and less than or equal to 25% by weight. Also provided is an aqueous amine-free non-stick coating composition including such an aqueous composition for a coating, and the respective methods for producing same. Further provided is a method for producing an item on one of the faces of a metal substrate, from at least one layer of the coating composition or one layer of the non-stick coating composition.

Method for handling a slag pot or ladle or pyro-metallurgical tools comprising the steps of spraying a mineral suspension onto a wall and putting into service of said slag pot or ladle or of the pyro-metallurgical tool, wherein said mineral suspension comprises calcium particles in suspension in an aqueous phase forming a calcium particle slurry containing a carbon hydrate at a content between 0.2 and 3%.

Polymer particles excellent in uniform dispersibility and the use thereof are provided. The polymer particles contain a surfactant, and have a coefficient of variation in the volume-based particle diameter distribution in the range from not less than 13.0% to not more than 25.0%. When 15.0 g of water is added to 5.0 g of the polymer particles so as to disperse the polymer particles in the water by performing a dispersion treatment for 60 minutes using an ultrasonic cleaner, and furthermore when an obtained dispersion liquid is put into a centrifuge tube with an inside diameter of 24 mm so as to be centrifuged, by a centrifugal separator, under conditions that K factor is 6943 and a rotating time is 30 minutes to recover a supernatant, a concentration of non-volatile components in the obtained supernatant is less than 3.5 wt. %.

An yttrium fluoride spray material contains Y.sub.5O.sub.4F.sub.7 and YF.sub.3, and has an average particle size of 10-60 μm and a bulk density of 1.2-2.5 g/cm.sup.3. The Y.sub.5O.sub.4F.sub.7 and YF.sub.3 in the yttrium fluoride spray material consist of 30 to 90% by weight of Y.sub.5O.sub.4F.sub.7 and the balance of YF.sub.3. A sprayed coating of yttrium oxyfluoride is obtained by atmospheric plasma spraying of the spray material.

An yttrium fluoride spray material contains Y.sub.5O.sub.4F.sub.7 and YF.sub.3, and has an average particle size of 10-60 μm and a bulk density of 1.2-2.5 g/cm.sup.3. The Y.sub.5O.sub.4F.sub.7 and YF.sub.3 in the yttrium fluoride spray material consist of 30 to 90% by weight of Y.sub.5O.sub.4F.sub.7 and the balance of YF.sub.3. A sprayed coating of yttrium oxyfluoride is obtained by atmospheric plasma spraying of the spray material.

Disclosed herein in is a radiative cooling formulation comprising a first component with >55% reflectance in wavelengths between 0.3 to 2.5 microns, a second component with >0.85 peak thermal emissivity in a window of 4 to 35 microns, and a third component to mechanically bind together the mixture of components.

Disclosed herein in is a radiative cooling formulation comprising a first component with >55% reflectance in a wavelengths range of 0.3 to 2.5 microns, a second component with >0.85 peak thermal emissivity in a window range of 4 to 35 microns, and a third component to mechanically bind together a mixture of the first and second components.

The present technology relates to a coating composition for paper making and to a method for manufacturing an eco-friendly type food wrapping paper with improved damp-proofing properties and blocking properties by using same. The water-dispersible coating composition for paper making of the present technology is a coating composition for paper making, which comprises an acrylic polymer resin and a pigment, the acrylic polymer resin containing an acrylate, the pigment containing at least one of clay, talc, and calcium carbonate, wherein the pigment has a particle diameter of 1800 nm or smaller, and is blended with the acrylate while the acrylate is used as a binder.

Described herein are coatings based on a hydrophobic polymer matrix and hydrophobic nanoparticles that provide a damage tolerant hydrophobic, superhydrophobic, and/or snowphobic capability, wherein the nanoparticles can comprise modified and phyllosilicate nanoclays. The micro and nano roughness of the composite surface is described. Methods of creating snow resistant materials by employing the aforementioned coatings are also described.

In a method for manufacturing core-shell particles including core particles and a shell, the constituent metal elements of the core particles and the shell are different from each other. A quinone-containing core particle dispersion containing at least core particles consisting of a first metal, hydroquinone (HQ), benzoquinone (BQ), and a second metal compound including a second metal element for making up the shell is prepared, and a reduction treatment is performed on the quinone-containing core particle dispersion, through addition of a reducing agent, to form a shell including the second metal element as a main constituent element, on the surface of the core particles. A mass ratio: HQ/BQ ratio of added hydroquinone (HQ) and benzoquinone (BQ) is 0.1 to 120.