IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0414313
(2009-03-30)
|
등록번호 |
US-8133357
(2012-03-13)
|
발명자
/ 주소 |
- Cao, Bangji
- Lau, Te Hua
- Song, W. David
- Brown, Martin W.
|
출원인 / 주소 |
|
대리인 / 주소 |
Greer, Burns & Crain, Ltd.
|
인용정보 |
피인용 횟수 :
13 인용 특허 :
9 |
초록
▼
A panel includes about 0.1% to about 95% by weight of a ground renewable component. In an embodiment, the panel has at least one core comprising: from about 0.1% to about 95% by weight of the ground renewable component; from about 0.1% to about 95% by weight of one or more fibers; and from about 1%
A panel includes about 0.1% to about 95% by weight of a ground renewable component. In an embodiment, the panel has at least one core comprising: from about 0.1% to about 95% by weight of the ground renewable component; from about 0.1% to about 95% by weight of one or more fibers; and from about 1% to about 30% by weight of one or more binders, all based on dry panel weight. In an embodiment, the ground renewable component has a particle size distribution whereby less than 5% of the particles are retained by a mesh screen with openings of about 0.312 inches and less than 5% of the particles pass through a mesh screen with openings of about 0.059 inches. A method for manufacturing such panels is also provided.
대표청구항
▼
1. An acoustical panel having a panel core comprising: from about 0.1% to about 95% by weight of a ground renewable component having a particle size distribution wherein less than 5% of ground renewable component particles are retained by a first mesh screen having openings of about 0.312 inches and
1. An acoustical panel having a panel core comprising: from about 0.1% to about 95% by weight of a ground renewable component having a particle size distribution wherein less than 5% of ground renewable component particles are retained by a first mesh screen having openings of about 0.312 inches and less than 5% of the particles pass through a second mesh screen having openings of about 0.059 inches;from about 0.1% to about 95% by weight of one or more fibers; andfrom about 1% to about 30% by weight of one or more binders, all weights based on dry panel weightwherein said panel has at least one of a Ceiling Attenuation Class value of at least about 25 and a Sound Transmission Class of at least about 25. 2. The acoustical panel of claim 1 wherein said ground renewable component comprises rice hulls, buckwheat hulls, nut shells, including peanut and walnut shells, wheat chaff, oat husks, rye whisks, cotton seed hulls, coconut shells, corn bran, corn cobs, sunflower seeds, rice straw stalk, wheat straw stalk, barley straw stalk, oat straw stalk, rye straw stalk, Espart, sorghum stalks, reeds, bamboos, sisal, Sabai, ramie, bagasse, flax, kenaf, jute, hemp, abaca, saw dust, wood chips or combinations thereof. 3. An acoustical panel having a panel core comprising: from about 0.1% to about 95% by weight of a ground renewable component having a particle size distribution wherein less than 5% of ground renewable component particles are retained by a first mesh screen with openings of about 0.132 inches;from about 0.1% to about 95% by weight of one or more fibers; andfrom about 1% to about 30% by weight of one or more binders, all weights based on dry panel weight,wherein said panel has at least one of a Ceiling Attenuation Class value of at least about 25 and a Sound Transmission Class of at least about 25. 4. The acoustical panel of claim 3 wherein said ground renewable component comprises rice hulls, buckwheat hulls, nut shells, including peanut and walnut shells, wheat chaff, oat husks, rye whisks, cotton seed hulls, coconut shells, corn bran, corn cobs, sunflower seeds, rice straw stalk, wheat straw stalk, barley straw stalk, oat straw stalk, rye straw stalk, Espart, sorghum stalks, reeds, bamboos, sisal, Sabai, ramie, bagasse, flax, kenaf, jute, hemp, abaca, saw dust, wood chips or combinations thereof. 5. The acoustical panel of claim 1, 2, 3 or 4 wherein said ground renewable component is present in amount of about 7% to about 40% by weight based on the dry panel weight. 6. The acoustical panel of claim 1, 2, 3 or 4 wherein said one or more fibers is selected from the group consisting of recycled paper fibers, mineral wool, glass wool, rock wool and combinations thereof. 7. A panel for use as a building material, wherein said panel is formed from an aqueous slurry including an inorganic fiber component, starch, water and a renewable component, about 0.1% to about 95% by weight of the panel, after removal of the water, being of the renewable component, wherein said panel has at least one of a Ceiling Attenuation Class value of at least about 25 and a Sound Transmission Class value of at least about 25. 8. The panel of claim 7, wherein said renewable component comprises rice hulls, buckwheat hulls, nut shells, including peanut and walnut shells, wheat chaff, oat husks, rye whisks, cotton seed hulls, coconut shells, corn bran, corn cobs, sunflower seeds, rice straw stalk, wheat straw stalk, barley straw stalk, oat straw stalk, rye straw stalk, Espart, sorghum stalks, reeds, bamboos, sisal, Sabai, ramie, bagasse, flax, kenaf, jute, hemp, abaca, saw dust, wood chips or combinations thereof. 9. The panel of claim 7 having an estimated Noise Reduction Coefficient value of at least about 0.20. 10. The panel of claim 7 having an air flow resistivity of less than about 8 mPa·s/m2. 11. The panel of claim 7 having a Modulus of Rupture value of at least about 80 psi. 12. The panel of claim 7 having a bulk density between about 7 lbs/ft3 and about 30 lbs/ft3. 13. The panel of claim 7 having a thickness of between about 0.2 inches and about 1.5 inches. 14. The panel of claim 7 that sags less than about 1.5 inches in a 90% RH humidity chamber. 15. The panel of claim 7 having a flame spread index of less than about 50. 16. The panel of claim 7 having a smoke development index of less than about 50. 17. The panel of claim 7 wherein a bulk density of said renewable component is between 5 and 50 lbs/ft3. 18. A panel for use as a building material, wherein said panel is formed from an aqueous slurry including an inorganic fiber component, starch, water and a renewable component, about 0.1% to about 95% by weight of the panel, after removal of the water, being of the renewable component, the renewable component being reduced in size such that no more than 5% by weight of the renewable component is retained by a mesh screen with openings of about 0.312 inches, wherein said panel has at least one of a Ceiling Attenuation Class value of at least about 25 and a Sound Transmission Class value of at least about 25.
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