发明名称 |
MOLDING A LIGHTWEIGHT CAST ACOUSTICAL PRODUCT |
摘要 |
<p>A lightweight cast article that is made by the method of the present invention. A foamed acoustical product is prepared by blending a starch with cold water, then heating the starch/water blend to form a starch gel. Mineral wool is added to the starch gel to form a pulp and the pulp is wet-mixed until wool nodules are formed. The pulp is then combined with a surfactant and an amount of foam water. The foaming agent is selected from the group consisting of a linear sodium dodecylbenzene sulfonate, a cocamidopropyl betaine, a cocamidopropyl hydroxysultaine, their salts and mixtures thereof. Mixing of the foaming agent and pulp continues to form a foamed pulp. The foamed pulp is cast into a mold and allowing the foamed pulp to dry forming a foamed product. The foamed product is removed from the mold.</p> |
申请公布号 |
WO2011130091(A1) |
申请公布日期 |
2011.10.20 |
申请号 |
WO2011US31560 |
申请日期 |
2011.04.07 |
申请人 |
USG INTERIORS, INC.;ENGLERT, MARK |
发明人 |
ENGLERT, MARK |
分类号 |
C04B26/28;C04B26/14;E04B1/82 |
主分类号 |
C04B26/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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