Construction materials with engineered sound attenuating properties and methods therefor
US11885120B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Aug 13, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Oct 17, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2103/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A sound attenuation material includes a plurality of particles, each having a core and an elastic or compliant coating around the core, and a matrix surrounding the plurality of particles, the matrix being less dense than the core. A method of manufacturing sound attenuating materials includes adding an elastic or compliant coating to core particles and drying and/or curing the coating, mixing the coated core particles into a matrix material, and pouring the mixture into a mold. The core particles are denser than the matrix material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.