Patent classifications
C09D5/031
METHOD OF MANUFACTURING DEW FORMATION PREVENTING MEMBER AND REFRIGERATOR AND EVAPORATOR HAVING DEW FORMATION PREVENTING MEMBER
A method of manufacturing a dew formation preventing member having a super water repellent surface of the present invention comprises the steps of: mixing a particular paint and polytetrafluorethylene at a predetermined ratio; particulate painting the mixed paint on a substrate surface; and heat treating the particulate painted substrate. A method of manufacturing a dew formation preventing member having a super water repellent surface according to another aspect of the present invention comprises the steps of: immersing a substrate in an electro deposition paint, and applying a direct current to conduct electro deposition painting; heat treating the substrate that has undergone the electro deposition painting; and plasma treating the surface of the substrate that has undergone the electro deposition painting.
Powder coating composition
A powder coating composition grindable at non-cryogenic temperatures includes: (a) a first polymer having a number average molecular weight (Mn) of more than 1,000 and a Tg of at least 40 C.; (b) a second polymer having a Tm of at least 100 C.; and optionally (c) a cross-linker. The first polymer and the second polymer are different from one another, and each of the first and second polymers have less than 25 wt % fluorine-containing monomeric units, with wt % based on the total weight of the monomeric units in each polymer. Upon grinding at a temperature above 4 C. the coating composition has an average particle size from 15 to 150 microns. Further coating compositions, methods of preparing coating compositions, coating systems, and substrates coated with a powder coating composition are also disclosed.
POROSITY REDUCTION BY ENCAPSULATED POLYMERIZING AGENTS
A method, composition, and article of manufacture. The method can include depositing a layer, which includes a set of particles and a set of microcapsules encapsulating polymerizing agents. The method can also include fusing particles in selected areas of the layer with a laser, and rupturing at least a portion of microcapsules using at least one energy source selected from the laser, an ultraviolet (UV) radiation source, and a heat source. The composition can include a set of particles and a set of microcapsules, each containing a polymerizing agent encapsulated by a degradable shell. The article of manufacture can include fused layers that include fused particles and pores sealed in reactions with polymerizing agents released from degradable microcapsules.
Colorful Low-Emissivity Paints for Space Heating and Cooling Energy Efficiency
A bilayer coating for thermal management has a bottom layer composed of aluminum microflakes dispersed in a Nitrile Butadiene Rubber-co-Urea (NBR-U) polymer binder, and a top layer composed of nanoparticle pigments in the NBR-U polymer binder. The top layer has a transmittance larger than 0.7 at IR wavelengths, and the bottom layer has an emissivity less than 0.4 and a reflectance larger than 0.6 in mid-IR wavelengths from 7 to 14 m.
METHOD FOR FORMING A POLYETHYLENE ALUMINA NANOCOMPOSITE COATING
A method for forming a polyethylene and alumina nanocomposite coating on a substrate is described. The method may use microparticles of UHMWPE with nanoparticles of alumina to form a powder mixture, which is then applied to a heated steel substrate to form the nanocomposite coating. The nanocomposite coating may have a Vickers hardness of 10.5-12.5 HV.
Powder coating material, coated item, and method for producing the coated item
A powder coating material includes powder particles and an external additive including inorganic particles having an average primary particle diameter of 1000 nm or less. The ratio of the carbon content (mass %) in the inorganic particles to the average primary particle diameter (nm) of the inorganic particles is 0.1 or more. The powder coating material includes a black colorant or a white colorant or does not include any colorant.
Protective coatings for ferrous substrates
Inorganic coatings that may be used to coat and protect steel are disclosed. The protective inorganic coatings include a liquid composition portion comprising water, alkali metal oxide components and a silicate-containing component. The coatings also include a powder composition portion comprising microspheres, metal oxide powder and optional microfibers. When applied to steel substrates, the coatings provide chemical and physical protection.
Protective coatings for galvanized steel
Inorganic coatings that may be used to coat and protect galvanized steel are disclosed. The protective inorganic coatings include a liquid composition portion comprising water, alkali metal oxide components and a silicate-containing component. The coatings also include a powder composition portion comprising microspheres, metal oxide powder and optional microfibers. When applied to galvanized steel, the coatings provide chemical and physical protection.
Polymer particles and related additive manufacturing methods
Polymer particles that comprise a thermoplastic polymer and a nucleating agent may be useful in additive manufacturing methods where warping may be mitigated. For example, a method of producing said polymer particles may comprise: mixing a mixture comprising a thermoplastic polymer, a nucleating agent, a carrier fluid, and optionally an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer to emulsify a thermoplastic polymer melt in the carrier fluid; cooling the mixture to form polymer particles; and separating the polymer particles from the carrier fluid, wherein the polymer particles comprise the thermoplastic polymer, the nucleating agent, the emulsion stabilizer, if included, and wherein the polymer particles have a crystallization temperature that is substantially the same as a crystallization temperature of the thermoplastic polymer prior to mixing.
Hydrolysis resistant vinyl ester containing latexes
A method of forming latex composite polymer particles produces hydrolysis resistant, composite polymer particles that can be used in aqueous latex compositions. Each of the latex composite polymer particles includes a first phase comprising a vinyl ester oligomer or polymer; optionally, an intermediate phase; and at least one second phase comprising an acrylic oligomer or polymer, a styrene oligomer or polymer, an acrylic-styrene copolymer, or mixtures thereof. The second phase and/or the intermediate phase at least partially encapsulates the first phase. The intermediate and second phases are more hydrophobic than the first phase. Optionally, the first phase, the second phase, and/or the intermediate phase may further comprise a cross-linking agent.