A tungsten oxide coating material for an electrochromic device that is a coating material for forming a tungsten oxide thin film having electrochromic characteristics, the coating material comprising: a solvent; tungsten oxide nanoparticles dispersed in the solvent; and a binder, wherein in the tungsten oxide nanoparticles, a half-value width of a peak detected at 291 in X-ray diffraction analysis (20) is 2 or less, and a primary particle size is 5 to 25 nm.

The present disclosure provides a surface layer protection film for an inorganic materials; an etching method for a surface layer of an inorganic material; and a method for producing an inorganic material having a surface layer that has been etched.

There is provided a protective film agent with which a workpiece is coated when the workpiece is processed. The protective film agent includes a water-soluble resin, a light absorbing agent having a flavone structure, a flavonol structure, or an isoflavone structure, and a solvent that dissolves the resin and the light absorbing agent.

This coating liquid contains: aerogel particles; a water-soluble polymer having a hydrophobic group; a binder resin; and a liquid medium, wherein the water-soluble polymer comprises a cellulose based resin having an alkyl group having 6 to 26 carbon atoms. The coating liquid is capable of forming a coating film having a high filling rate of aerogel particles and an excellent film strength and is excellent in terms of the dispersibility of aerogel particles.

This coating liquid contains: aerogel particles; a water-soluble polymer having a hydrophobic group; a binder resin; and a liquid medium, wherein the water-soluble polymer comprises a cellulose based resin having an alkyl group having 6 to 26 carbon atoms. The coating liquid is capable of forming a coating film having a high filling rate of aerogel particles and an excellent film strength and is excellent in terms of the dispersibility of aerogel particles.

Disclosed is a coating composition including, in relation to 100% of the weight thereof: 10-90 wt. % of at least one film-forming polymer selected from methyl cellulose, hydroxy propyl methyl cellulose, hydroxy propyl cellulose, hydroxy ethyl cellulose, sodium carboxy methyl cellulose, ethyl cellulose, PVA (polyvinyl alcohols), PVA-PEG (polyethylene glycol) copolymers, polyvinyl acetate, polyvinyl pyrrolidones (PVP), vinylpyrrolidone-vinyl acetate copolymers, alginates, pectin, arabic gum, guar gum, carrageenans, xanthan gum, inulin, chitosan, methacrylic acid copolymer, ethyl acetate, or polyethylene glycol-polypropylene glycol (PEG-PPG) copolymer; 0-50 wt. % of at least one auxiliary coating agent selected from diluents, surfactants, plasticisers and anti-foaming agents; and 10-50 wt. % of a whitening filler free of titanium dioxide including at least one alkaline or alkaline earth salt of a fatty acid and at least one cellulose compound selected from cellulose, cellulose powder, microcrystalline cellulose, or a mixture of the components.

Disclosed is a coating composition including, in relation to 100% of the weight thereof: 10-90 wt. % of at least one film-forming polymer selected from methyl cellulose, hydroxy propyl methyl cellulose, hydroxy propyl cellulose, hydroxy ethyl cellulose, sodium carboxy methyl cellulose, ethyl cellulose, PVA (polyvinyl alcohols), PVA-PEG (polyethylene glycol) copolymers, polyvinyl acetate, polyvinyl pyrrolidones (PVP), vinylpyrrolidone-vinyl acetate copolymers, alginates, pectin, arabic gum, guar gum, carrageenans, xanthan gum, inulin, chitosan, methacrylic acid copolymer, ethyl acetate, or polyethylene glycol-polypropylene glycol (PEG-PPG) copolymer; 0-50 wt. % of at least one auxiliary coating agent selected from diluents, surfactants, plasticisers and anti-foaming agents; and 10-50 wt. % of a whitening filler free of titanium dioxide including at least one alkaline or alkaline earth salt of a fatty acid and at least one cellulose compound selected from cellulose, cellulose powder, microcrystalline cellulose, or a mixture of the components.

The present application provides titanium dioxide free film coating compositions comprising a combination of a water soluble cellulose ether, a water soluble anionic cellulose ether, calcium carbonate and a plasticizer. The invention further provides a process for preparing the film coating compositions and a method of coating solid substrates with such coating compositions.