Structure body, sound absorbing material, sound insulating wall material, and manufacturing method of structure body

Patent metadata

Field	Value
Publication number	US-10789930-B2
Application number	US-201515531477-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 12, 2014
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

This invention is concerning a structure body containing inorganic particles having an average particle diameter of 6 mm to 50 mm, and 6 parts by mass to 40 parts by mass of a resin with respect to 100 parts by mass of the inorganic particles.

First claim

The invention claimed is:

1. A structure body consisting of inorganic particles having an average particle diameter of 6 mm to 20 mm, and 6 parts by mass to 40 parts by mass of a resin with respect to 100 parts by mass of the inorganic particles,
wherein the inorganic particles are porous materials, and
70 mass % or more of the inorganic particles have an average particle diameter of 6 mm to 20 mm.

2. The structure body according to claim 1 ,
wherein the structure body has a plurality of continuous gaps therein which allows one end surface to communicate with the other end surface.

3. The structure body according to claim 1 ,
wherein bulk specific gravity is less than or equal to 0.9.

4. The structure body according to claim 1 ,
wherein the inorganic particles are one or more types of particles selected from the group consisting of white sand, pumice stone, and scoria.

5. The structure body according to claim 1 ,
wherein the resin is formed by curing a resin composition which contains a thermosetting resin having a viscosity of 0.08 Pa·s to 2 Pa·s, a curing agent, and a curing accelerator.

6. The structure body according to claim 5 ,
wherein the thermosetting resin is one or more types of resins selected from the group consisting of an unsaturated polyester resin, a vinyl ester resin, a phenol resin, a urea resin, a melamine resin, and an epoxy resin.

7. A sound absorbing material formed of the structure body according to claim 1 .

8. A sound insulating wall material formed of the sound absorbing material according to claim 7 .

9. A manufacturing method of a structure body, comprising:
a step of mixing inorganic particles having an average particle diameter of 6 mm to 20 mm, and 6 parts by mass to 40 parts by mass of a resin composition with respect to 100 parts by mass of the inorganic particles; and
a step of molding the mixed inorganic particles and resin composition without pressuring,
wherein the inorganic particles are porous materials,
70 mass % or more of the inorganic particles have an average particle diameter of 6 mm to 20 mm, and
the structure body consists of the inorganic particles and the resin composition.

Assignees

• Showa Denko Kk

Inventors

• Takahashi Nobuyuki
• Ishiuchi Ryujin
• Itami Shotaro

Classifications

• E01F8/0029 Primary

  with porous surfaces, e.g. concrete with porous fillers · CPC title

• E04B1/82

  specifically with respect to sound only ({of floors or ceilings E04B9/001;} noise damping in ducts or channels E04F17/00; noise damping in general G10K11/16) · CPC title

• C04B26/18

  Polyesters; Polycarbonates · CPC title

• B29K2031/00

  Use of polyvinylesters {or derivatives thereof} as moulding material · CPC title

• E04B1/86

  slab-shaped · CPC title