The multilevel antimicrobial polymeric colloids as functional additives for latex coating are latex-based coatings with multilevel antimicrobial polymeric colloidal particles incorporated therein to provide antimicrobial properties. Each multilevel antimicrobial polymeric colloidal particle includes a polymer scaffold and at least one antimicrobial polymer carried on the polymer scaffold, such that the polymer scaffold and the at least one antimicrobial polymer form a hollow colloidal particle. As a non-limiting example, the polymer scaffold may be polyvinyl alcohol (PVA). As a further non-limiting example, the at least one antimicrobial polymer may be a combination of polyethyleneimine (PEI) and polyhexamethylene biguanide (PHMB). Each multilevel antimicrobial polymeric colloidal particle may also contain an antimicrobial core within the hollow colloidal particle.

The multilevel antimicrobial polymeric colloids as functional additives for latex coating are latex-based coatings with multilevel antimicrobial polymeric colloidal particles incorporated therein to provide antimicrobial properties. Each multilevel antimicrobial polymeric colloidal particle includes a polymer scaffold and at least one antimicrobial polymer carried on the polymer scaffold, such that the polymer scaffold and the at least one antimicrobial polymer form a hollow colloidal particle. As a non-limiting example, the polymer scaffold may be polyvinyl alcohol (PVA). As a further non-limiting example, the at least one antimicrobial polymer may be a combination of polyethyleneimine (PEI) and polyhexamethylene biguanide (PHMB). Each multilevel antimicrobial polymeric colloidal particle may also contain an antimicrobial core within the hollow colloidal particle.

Provided is an ATF oil and corona-resistant enameled wire for electric vehicle motors, belonging to the insulating materials field. The ATF oil and corona-resistant enameled wire for electric vehicle motors comprises a copper conductor and an insulating layer, wherein said insulating layer from inside to outside is composed of ATF oil and corona-resistant protective film, corona-resistant PAI film, ATF oil and corona-resistant protective film, corona-resistant PAI film, ATF oil and corona-resistant protective film. The ATF oil and corona resistant enameled wire of this disclosure is suitable for the preparation of oil-cooled electric vehicle motor loose winding coil due to the advantages of good manufacturability, excellent ATF oil and corona resistance, and low manufacturing cost.

A dispersion, methods of making the same, applications of the dispersion to graphitic material and the resulting coated particles are disclosed. The dispersion includes ≤55% wt. coal tar pitch (softening point 100° C.-95° C.), ≤60% wt. dispersant, and the balance a non-aromatic solvent such as water or alcohol. Pitch particles in the dispersion are preferably ≤10 μm with a distribution of D50<15 μm. The pitch particles are micronized, such as by dry and/or wet milling with the dispersant and aqueous solvent to achieve the desired pitch particle size and distribution. This aqueous dispersion may be mixed with natural or synthetic graphitic material having a diameter of 5-20 μm in a ratio of 5%-30% pitch to graphite, dried and carbonized to form coated particles having a graphitic core at least partially coated by pitch particles.

A dispersion, methods of making the same, applications of the dispersion to graphitic material and the resulting coated particles are disclosed. The dispersion includes ≤55% wt. coal tar pitch (softening point 100° C.-95° C.), ≤60% wt. dispersant, and the balance a non-aromatic solvent such as water or alcohol. Pitch particles in the dispersion are preferably ≤10 μm with a distribution of D50<15 μm. The pitch particles are micronized, such as by dry and/or wet milling with the dispersant and aqueous solvent to achieve the desired pitch particle size and distribution. This aqueous dispersion may be mixed with natural or synthetic graphitic material having a diameter of 5-20 μm in a ratio of 5%-30% pitch to graphite, dried and carbonized to form coated particles having a graphitic core at least partially coated by pitch particles.

A coloring tablet may have excellent solubility and redispersibility and a water-based ink composition for a writing instrument. Such a coloring tablet may contain at least a colorant and a dispersing agent. The dispersing agent may include a hydroxide neutralization product of an (meth)acrylic resin, a hydroxide neutralization product of a styrene-maleic acid copolymer resin, a polyoxyethylene-based surfactant, an alkyl condensed ring sulfonate, an amine ethylene oxide propylene oxide adduct, and/or a isobutylene-based polymer.

A coloring tablet may have excellent solubility and redispersibility and a water-based ink composition for a writing instrument. Such a coloring tablet may contain at least a colorant and a dispersing agent. The dispersing agent may include a hydroxide neutralization product of an (meth)acrylic resin, a hydroxide neutralization product of a styrene-maleic acid copolymer resin, a polyoxyethylene-based surfactant, an alkyl condensed ring sulfonate, an amine ethylene oxide propylene oxide adduct, and/or a isobutylene-based polymer.

The present invention discloses an environment-friendly wall paint for a building and a preparation method thereof. The wall paint comprises glue powder, silica gel, nano-montmorillonite composite powder, diatomite dispersion, nano-calcium silicate, nano-titanium dioxide, glass fiber powder, red clay, lime, water, lignin, acrylamide, bamboo charcoal powder, alfalfa meal, tobacco straw fiber powder, Ligusticum chuanxiong Hort extracting solution, Agastache rugosa extracting solution, mint extracting solution and natural plant essential oil. The wall paint disclosed by the present invention can be used for decorative coating of interior walls of the building, has the characteristics of strong adhesion, rapid drying, water and moisture resistance, no skinning, no shedding, no toxicity and no pollution, can purify indoor air, and also has the effects of heat preservation, heat insulation and fire prevention.

Provided is a curable photochromic coating composition including (a) a polyol component, (b) a poly(anhydride) having at least three cyclic anhydride groups, (c) a secondary crosslinker, and (d) a photochromic material. The polyol component includes (i) a first polyol having two hydroxyl groups and a hydroxyl equivalent weight of at least 15,000 g/mol and (ii) a second polyol different from the first polyol having at least three hydroxyl groups and a hydroxyl equivalent weight of at least 300 g/mol. The secondary crosslinker is selected from a poly(carbodiimide), an oxazoline-functional material, or mixtures thereof. The present invention also provides an optical article prepared from the curable photochromic coating composition.

Provided is a curable photochromic coating composition including (a) a polyol component, (b) a poly(anhydride) having at least three cyclic anhydride groups, (c) a secondary crosslinker, and (d) a photochromic material. The polyol component includes (i) a first polyol having two hydroxyl groups and a hydroxyl equivalent weight of at least 15,000 g/mol and (ii) a second polyol different from the first polyol having at least three hydroxyl groups and a hydroxyl equivalent weight of at least 300 g/mol. The secondary crosslinker is selected from a poly(carbodiimide), an oxazoline-functional material, or mixtures thereof. The present invention also provides an optical article prepared from the curable photochromic coating composition.