发明名称 |
MIXTURES AND EMULSIONS FOR USE IN PROVIDING STRENGTH TO GYPSUM COMPOSITIONS |
摘要 |
Settable gypsum compositions are described herein which include a gypsum slurry, comprising water; and a first additive comprising a vinyl acetate/ethylene copolymer in latex or emulsion form and a second additive which is at least one of (i) a wetting agent and/or a surfactant; (ii) a titanium coupling agent, (iii) a zirconium coupling agent, and (iv) mixtures thereof. The compositions demonstrate improved strength and gypsum core adhesion. Such compositions may also include at least one dispersant and/or a wetting agent and/or a surfactant. Such dispersants may be lignosulfonic acid, naphthalene sulfonic acid, and combinations and salts thereof and the wetting agent and/or surfactant may be N-dodecyl 2- pyrrolidone, ethoxylated alcohol, and combinations thereof. The dispersant and/or wetting agents and/or surfactants can further enhance rheological properties to benefit the enhanced strength gypsum compositions. |
申请公布号 |
WO2011129919(A1) |
申请公布日期 |
2011.10.20 |
申请号 |
WO2011US25562 |
申请日期 |
2011.02.18 |
申请人 |
HENRY COMPANY LLC;STUART, JONATHAN, T.;WERTS, WILLIAM, J. |
发明人 |
STUART, JONATHAN, T.;WERTS, WILLIAM, J. |
分类号 |
C04B22/00;C04B22/08;C04B28/00 |
主分类号 |
C04B22/00 |
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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