Water-repellent structure, manufacturing method therefor, and water-repellent coating agent employed in same
AssigneeBando Chemical Industries, Ltd.
InventorsJun Onishi, Hiroshi Sanda
Life of this patent
Estimating the term…
Abstract
A water-repellent structure includes: a base material; and a water-repellent layer located on a surface of the base material. The water-repellent layer contains water-repellent particles and filler particles having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles.
Claims12
A water-repellent structure, comprising:
- a base material;
- and
- a water-repellent layer located on a surface of the base material, wherein
- the water-repellent layer contains water-repellent particles including hydrophilic fumed silica, and filler particles including hydrophilic large particle size silica and having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles, and
- a ratio of a BET specific surface area of the filler particles to a BET specific surface area of the water-repellent particles is 2 or more and 20 or less.
A water-repellent structure, comprising:
- a base material;
- and
- a water-repellent layer located on a surface of the base material, wherein
- the water-repellent layer contains water-repellent particles and filler particles having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles, and
- the water-repellent particles include ungrained carbon black.
A water-repellent structure, comprising:
- a base material;
- and
- a water-repellent layer located on a surface of the base material, wherein
- the water-repellent layer contains water-repellent particles and filler particles having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles, and
- the water-repellent layer further contains an oxidized polyolefin wax.
A water-repellent structure, comprising:
- a non-woven fabric;
- and
- a water-repellent layer located on a surface of the non-woven fabric, wherein
- the water-repellent layer contains water-repellent particles and filler particles having a larger average particle size than the water-repellent particles, and
- a basis weight of the non-woven fabric is 800 g/m2 or less.
A water-repellent structure, comprising
- a non-woven fabric;
- and
- a water-repellent layer located on a surface of the non-woven fabric, wherein
- the water repellent layer contains water-repellent particles and filler particles having a larger average particle size than the water-repellent particles, and
- a basis weight of the non-woven fabric is 20 g/m2 or more.
A method for manufacturing a water-repellent structure, comprising forming a water-repellent layer by coating a surface of a base material with a water-repellent coating agent, wherein
- the water-repellent coating agent contains water-repellent particles including hydrophilic fumed silica, filler particles including hydrophilic large particle size silica and having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles, and an uncured binder resin, and
- a ratio of a BET specific surface area of the filler particles to a BET specific surface area of the water-repellent particles is 2 or more and 20 or less.
A method for manufacturing a water-repellent structure, comprising forming a water-repellent layer by coating a surface of a non-woven fabric with a water-repellent coating agent, wherein
- the water-repellent coating agent contains water-repellent particles, filler particles having a larger average particle size than the water-repellent particles, and an uncured binder resin, and
- a basis weight of the non-woven fabric is 800 g/m2 or less.
A water-repellent coating agent containing water-repellent particles, filler particles having an average particle size that is 20 times or more as large as an average particle size of the water-repellent particles, an uncured binder resin, and an oxidized polyolefin wax.
Dependencies are inferred from the claim text.