发明名称 |
EFFECTIVE USE OF MELAMINE SULFONATE CONDENSATE DISPERSANTS IN WALLBOARD CONTAINING FOAM |
摘要 |
Effective use of dispersants in wallboard containing foam results from a method where stucco is mixed with a first dispersant and a first quantity of water to form a gypsum slurry. A soap is blended with a second dispersant and a second quantity of water to make a foam. Subsequently, the foam is combined with the slurry. Choice of different first and second dispersants and their relative amounts allows control of the size distribution of the foam bubbles in the slurry and the resulting voids in the gypsum core. Melamine sulfonate condensate and polycarboxylate dispersants are preferred dispersants.
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申请公布号 |
US2012172468(A1) |
申请公布日期 |
2012.07.05 |
申请号 |
US201113153670 |
申请日期 |
2011.06.06 |
申请人 |
BLACKBURN DAVID R.;SHAKE MICHAEL P.;LU RUNHAI |
发明人 |
BLACKBURN DAVID R.;SHAKE MICHAEL P.;LU RUNHAI |
分类号 |
C04B28/12;C04B28/04 |
主分类号 |
C04B28/12 |
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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