Construction materials with engineered sound attenuating properties and methods therefor
AssigneeOceanit Laboratories, Inc.
InventorsJacob Kumar Pollock, Raphael Rodriguez, Bryce Davis, Erika Brown, El Hadj Fofana
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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.
Claims25
A sound attenuation material, comprising:
- a plurality of particles, each comprising a core and an elastic or compliant coating around the core;
- and
- a matrix surrounding the plurality of particles;
- wherein the core is denser than the coating,
- wherein the coating is foamed, and
- wherein the plurality of particles is pan-coated, fluidized bed-coated, or both.
A method of manufacturing sound attenuating materials, comprising:
- adding a foamed elastic or compliant coating to core particles and at least one of:
- drying the foamed coating, and curing the foamed coating, thereby generating coated core particles;
- mixing the coated core particles into a matrix material, thereby generating a mixture;
- and
- pouring the mixture into a mold;
- wherein the core particles are denser than the matrix material.
A sound attenuation material, comprising:
- a plurality of particles, each comprising a core and an elastic or compliant coating uniformly distributed around the core;
- and
- a matrix surrounding the plurality of particles,
- wherein the core is denser than both the coating and the matrix,
- wherein the matrix is denser than the coating, and
- wherein both the coating and the matrix are foamed.
Dependencies are inferred from the claim text.