IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0981132
(2010-12-29)
|
등록번호 |
US-8210310
(2012-07-03)
|
발명자
/ 주소 |
- Yeung, Lee K.
- Albarran, Enrique L.
|
출원인 / 주소 |
- United States Gypsum Company
|
대리인 / 주소 |
Greer, Burns & Crain, Ltd.
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
5 |
초록
▼
A method of installing an acoustical system that provides a desired sound attenuation includes attaching an acoustical panel having a first density, a first porosity and a first void volume to the substrate. A first finishing layer is prepared with first particles, a first binder, a first rheologica
A method of installing an acoustical system that provides a desired sound attenuation includes attaching an acoustical panel having a first density, a first porosity and a first void volume to the substrate. A first finishing layer is prepared with first particles, a first binder, a first rheological modifier and water which are combined, applied to the substrate and dried. The first finishing layer has a first density. When the first sound attenuation changes to a second sound attenuation a second finishing layer is prepared to include second particles, a second binder, a second rheological modifier and water. The dried second finishing layer has a second density. If the second density is less than the first density, the second sound attenuation is greater than the first sound attenuation. If the second density is greater than the first density, the second sound attenuation is less than the first sound attenuation.
대표청구항
▼
1. A method of installing an acoustical finishing system to a substrate that provides a desired sound attenuation to an occupied space, said method comprising: attaching an acoustical panel to a substrate of the occupied space, said panel having a first density, a first porosity and a first void vol
1. A method of installing an acoustical finishing system to a substrate that provides a desired sound attenuation to an occupied space, said method comprising: attaching an acoustical panel to a substrate of the occupied space, said panel having a first density, a first porosity and a first void volume;selecting components for a first finishing layer comprising a first plurality of non-close packing first particles, a first binder, a first rheological modifier and a first portion of water;combining the components for the first finishing layer to make the first finishing layer;applying the first finishing layer to the substrate;allowing the first finishing layer to dry, wherein following said allowing step the density of the dried first finishing layer is the first density, the porosity of the dried first finishing layer is the first porosity and the void volume of the dried first finishing layer is the first void volume, and wherein the combination of the acoustical panel and the dried first finishing layer produces the first desired sound attenuation in the occupied space;changing the first desired sound attenuation to a second desired sound attenuation;selecting components for a second finishing layer comprising a second plurality of non-close packing second particles, a second binder, a second rheological modifier and a second portion of water;combining the components for the second finishing layer to make the second finishing layer;applying the second finishing layer to the first finishing layer; andallowing the second finishing layer to dry, wherein following said second finishing step, the dried second finishing layer has a second density, a second void volume and a second porosity and wherein the combination of the substrate, the first finishing layer and the second finishing layer produces the second desired sound attenuation in the occupied space; and wherein if the second desired sound attenuation is greater than the first desired sound attenuation, the second density is less than or equal to the first density and if the second desired sound attenuation is less than the first desired sound attenuation, the second density is greater than the first density. 2. The method of claim 1 further comprising selecting the acoustical panel that comprises fiberglass, wood particles, inorganic particles, mineral wool, natural fibers, synthetic fibers and combinations thereof. 3. The method of claim 1, wherein the first particles of said first selecting step or the second particles of said second selecting step have a particle size distribution of from about 100 to about 500 microns. 4. The method of claim 1 further comprising selecting the first particles or the second particles to have a mean diameter range of about 30 to about 150 mesh. 5. The method of claim 1 further comprising selecting the first particles to have a shape between spherical and acicular. 6. The method of claim 1 further comprising selecting the binder from the group consisting of polyacetate emulsion and polyacrylic emulsion. 7. The method of claim 1 further comprising selecting the rheological modifier from the group consisting of cellulosic thickeners, clays and modified starches. 8. The method of claim 1 wherein at least one of said applying steps comprises applying the finishing layer by hand. 9. The method of claim 1 wherein the components of the first preparing step and said second preparing step are selected so that the first density is greater than the second density. 10. The method of claim 1 wherein the components of the first preparing step and said second preparing step are selected so that the first density is less than the second density. 11. The system of claim 1 wherein the non-close packing first particles comprise inorganic particles, organic particles, inorganic fibers, organic fibers, aggregates or combinations thereof. 12. An acoustical panel system comprising: an acoustical panel having a first density, a first porosity, and a first void volume;a first finishing layer comprising a first non-close packing filler, a first binder and a first rheological modifier, wherein said first filler comprises non-close packing particles having a particle size of from about 100 to about 500 microns, said first finishing layer having a second density, a second porosity and a second void volume, wherein said second density is substantially equal to said first density and either said second porosity is substantially equal to said first porosity or said second void volume is substantially equal to said first void volume; anda second finishing layer comprising a second filler, a second binder and a second rheological modifier, said second finishing layer having a third density, a third porosity and a third void volume, wherein either said third density is substantially equal to said second density, said third porosity is substantially equal to said second porosity or said third void volume is substantially equal to said second void volume. 13. The system of claim 12 wherein at least one of said first binder and said second binder comprises one of the group consisting of polyacetate emulsion and polyacrylate emulsions. 14. The system of claim 12 wherein at least one of said first rheological modifier and said second rheological modifier comprises one of the group consisting of methylated cellulose, clays and modified starches. 15. The system of claim 12 wherein said first non-close packing has a particle size distribution of from 100 to about 500 microns. 16. The system of claim 12 wherein the second non-close packing has a particle size distribution of from 100 to about 500 microns. 17. The system of claim 15 wherein said fibers comprise one of organic fibers, inorganic fibers or combinations thereof. 18. A method of changing the sound attenuation properties of a panel, comprising: selecting a panel installed in an occupiable space, said panel including a first finishing layer comprising a first non-close packing filler, a first binder and a first rheological modifier, wherein said first filler comprises non-close packing particles having a particle size of from about 100 to about 500 microns, said first finishing layer having a second density, a second porosity and a second void volume, wherein said second density is substantially equal to said first density and either said second porosity is substantially equal to said first porosity or said second void volume is substantially equal to said first void volume;changing the first desired sound attenuation to a second desired sound attenuation;selecting components for a second finishing layer comprising a second plurality of non-close packing second particles, a second binder, a second rheological modifier and a second portion of water;combining the components for the second finishing layer to make the second finishing layer;applying the second finishing layer to the first finishing layer; andallowing the second finishing layer to dry, wherein following said second finishing step, the dried second finishing layer has a second density, a second void volume and a second porosity and wherein the combination of the substrate, the first finishing layer and the second finishing layer produces the second desired sound attenuation in the occupied space; and wherein if the second desired sound attenuation is greater than the first desired sound attenuation, the second density is less than or equal to the first density and if the second desired sound attenuation is less than the first desired sound attenuation, the second density is greater than the first density.
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