Photocatalyst-supporting structure
AssigneeNippon Soda Co., Ltd.
InventorKazunori Saito
Life of this patent
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Abstract
An object of the invention of the present application is to provide a photocatalyst-carrying structure provided with a carrier and a photocatalyst layer carried on the carrier with an adhesive layer there between, wherein the adhesive layer for carrying the photocatalyst does not contain a volatile organic compound as solvent. An aqueous silicone-modified resin is preferably used for the adhesive layer, and the aqueous silicone-modified resin is preferably a resin obtained by emulsion polymerization of a monomer in the presence of an emulsifier in an aqueous medium, and is further modified with silicone using a compound having a silicone structure.
Claims9
A photocatalyst-carrying structure comprising:
- a carrier;
- a photocatalyst layer carried on the carrier;
- and
- an adhesive layer formed between the carrier and the photocatalyst layer by coating the carrier with a composition for forming the adhesive layer, followed by drying;
- wherein the composition for forming the adhesive layer consists of:
- (i) an aqueous silicone-modified (meth)acrylic resin at a solid content of 10% by weight to 20% by weight, the aqueous silicone-modified (meth)acrylic resin being obtained by emulsion polymerization of a monomer in the presence of an emulsifier in an aqueous medium, and further modification with silicone using a compound having a silicone structure,
- (ii) 2% by weight to 15% by weight of at least one selected from the group consisting of (poly)ethylene glycol, (poly)ethylene glycol monoalkyl ethers, (poly)ethylene glycol esters, (poly)ethylene glycol ether esters, (poly)propylene glycol, (poly)propylene glycol monoalkyl ethers, (poly)propylene glycol esters, and (poly)propylene glycol ether esters,
- (iii) 30% by weight to 40% by weight of at least one solvent selected from the group consisting of methanol, ethanol, isopropanol, n-propanol, and n-butanol, and
- (iv) water.
Dependencies are inferred from the claim text.