发明名称 |
ADDITIVES IN GYPSUM SLURRIES AND ADJUSTING THEIR PROPORTIONS |
摘要 |
A gypsum slurry is provided that includes calcium sulfate hemihydrate; water; a dispersant component comprising at least one of the following a comb-branched polymer with polyether side chains, naphthalene sulfonate-formaldehyde condensate or melamine sulfonate-formaldehyde condensate; a foaming agent; and a polycondensation component with three polycondensation repeating units. Also provided is a method for making a gypsum slurry with a foaming agent in which the ratio between the dispersant component and the polycondensation component is adjusted to control for the size of foam bubbles in the gypsum slurry. Gypsum products made from the gypsum slurry are provided and methods for making the products are provided as well. |
申请公布号 |
US2014073711(A1) |
申请公布日期 |
2014.03.13 |
申请号 |
US201314075880 |
申请日期 |
2013.11.08 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
LEE CHRIS C.;LI ALFRED C.;HASZEL RICHARD J.;BLACKBURN DAVID R.;WITTBOLD JAMES R.;GROZA BRENT |
分类号 |
C04B26/02;C08J9/00 |
主分类号 |
C04B26/02 |
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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