METHOD FOR PRODUCING BUILDING MATERIAL

• US 20170087592A1
• Filed: 09/06/2016
• Published: 03/30/2017
• Est. Priority Date: 09/30/2015
• Status: Active Grant

• Current Assignee: Nichia Corporation
• Original Assignee: Nichia Corporation
• Inventors: TAGUCHI, Hiroyuki, MURASE, Miho
• Granted Patent: US 10,953,435 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B05D 3/007 After-treatment
• CPC Class Codes: B05D 7/548 No curing step for the last layer
• CPC Class Codes: C04B 14/04 Silica-rich materials; Silicates
• CPC Class Codes: C04B 14/042 Magnesium silicates, e.g. talc, sepiolite
• CPC Class Codes: C04B 14/28 of calcium
• CPC Class Codes: C04B 20/0048 Fibrous materials
• CPC Class Codes: C04B 2103/54 Pigments; Dyes
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 38/00 Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof treating slag with gases or gas generating material C04B5/06 ; expanded graphite C04B35/536
• CPC Class Codes: C04B 41/0045 Irradiation; Radiation, e.g. with UV or IR C04B41/0036 takes precedence
• CPC Class Codes: C04B 41/009 characterised by the material treated
• CPC Class Codes: C04B 41/46 with organic materials
• CPC Class Codes: C04B 41/483 Polyacrylates
• CPC Class Codes: C04B 41/4842 Fluorine-containing polymers
• CPC Class Codes: C04B 41/4853 Epoxides
• CPC Class Codes: C04B 41/4884 Polyurethanes; Polyisocyanates
• CPC Class Codes: C04B 41/4961 Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
• CPC Class Codes: C04B 41/52 Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
• CPC Class Codes: C04B 41/522 Multiple coatings, for one of the coatings of which at least one alternative is described
• CPC Class Codes: C04B 41/71 at least one coating being an organic material
• CPC Class Codes: E04C 2/06 : reinforced
• CPC Class Codes: E04F 13/148 : with an outer layer of asbestos cement or the like

Abstract

A method for producing a building material includes a first step of applying an undercoat paint onto a surface of an inorganic base material, curing the undercoat paint, and polishing the undercoat paint; and a second step of applying an enamel paint onto the undercoat paint and curing the enamel paint. The undercoat paint contains an undercoat-forming material and a filler. The enamel paint contains an enamel-forming material and a pigment. The enamel-forming material is a solvent-based resin. A content of the filler in the undercoat paint is 40% to 70% by mass in terms of solid content. A content of the pigment in the enamel paint is 1% to 50% by mass in terms of solid content.

Claims

1. A method for producing a building material, comprising:

a first step of applying an undercoat paint onto an inorganic base material, curing the undercoat paint, and polishing the undercoat paint; and

a second step of applying an enamel paint onto the undercoat paint and curing the enamel paint,

wherein the undercoat paint contains an undercoat-forming material and a filler,

the enamel paint contains an enamel-forming material and a pigment,

the enamel-forming material is a solvent-based resin,

a content of the filler in the undercoat paint is 40% to 70% by mass in terms of solid content, and

a content of the pigment in the enamel paint is 1% to 50% by mass in terms of solid content.

2. The method according to claim 1,

wherein the solvent-based resin serving as the enamel-forming material is at least one of a solvent-based fluororesin, a solvent-based acrylic resin, and a solvent-based urethane resin.

3. The method according to claim 1,

wherein the undercoat-forming material is at least one of an ultraviolet-curable resin and a solvent-based urethane resin.

4. The method according to claim 1,

wherein the pigment is at least one of titanium oxide, carbon, iron oxide, and an organic pigment.

5. The method according to claim 1,

wherein the filler is at least one of talc, calcium carbonate, and silica.