# US 2014/0151152 A1 · Sound Attenuation Building Material and System

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0151152 A1
- Document ID: US20140151152A1
- Status: Published application
- Kind: A1
- Application number: 13/898,333
- Filed: 2013-05-20
- Published: 2014-06-05
- Earliest claimed: 2007-03-21
- Assignees: Ashtech Industries, LLC
- Applicants: Ashtech Industries, LLC
- Inventors: Michael D. Kipp; Dilworth L. Pugh; Michael D. Ridges; William t. McCarvill
- Web page: https://patentgrep.com/patent/US20140151152A1

## CPC

- E04B 1/86: slab-shaped
- C04B 28/26: Silicates of the alkali metals
- E04B 1/8209: {sound absorbing devices (E04B1/8218, E04B1/8227 take precedence)}
- E04B 1/8409: {sheet-shaped}
- E04C 2/043: {of plaster (E04C2/049 takes precedence)}
- E04C 2/16: of fibres, chips, vegetable stems, or the like
- G10K 11/165: Particles in a matrix
- C04B 18/082: {Cenospheres}
- C04B 20/0032: {characterised by the gas filling pores, e.g. inert gas or air at reduced pressure}
- C04B 2111/52: Sound-insulating materials
- E04B 1/84: Sound-absorbing elements
- E04B 2001/8419: {Acoustical cones or the like, e.g. for anechoic chambers}
- E04B 2001/8423: {Tray or frame type panels or blocks, with or without acoustical filling}
- E04B 2001/8461: {layered}
- E04B 2001/8476: {with acoustical cavities, with or without acoustical filling}
- Y02W 30/91: Use of waste materials as fillers for mortars or concrete
- Y10T 428/24612: Composite web or sheet
- Y10T 428/249953: Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T 428/249967: Inorganic matrix in void-containing component
- Y10T 428/249987: With nonvoid component of specified composition
- Y10T 428/25: Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T 428/27: Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)
- G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A building material configured to enhance sound attenuation and reduction in dB across a walled partition, the building material comprising a facing membrane, a core matrix disposed about the facing membrane, the core matrix comprising a plurality of microparticles and a binder solution configured to support the microparticles, the building material comprising at least a substantially exposed face, wherein a side of the core matrix is at least partially exposed to increase sound attenuation by reducing reflections from sound waves impinging on the building material as compared to a control building material lacking an exposed face. Two building materials may be used in conjunction with one another about a building structure, such as a stud wall, to create and define a sound trap that functions to reduce sound transmission across the partition formed by the stud wall and building materials.

## Claims

### Claim 1

A sound attenuating building material, comprising:
a core matrix disposed on a facing material, the core matrix comprising:
a plurality of microparticles, wherein the microparticles are cenospheres; and
a binder adhering together the microparticles to form a porous core matrix.