发明名称 |
HARD WATER FOAMING AGENTS AND METHODS FOR GYPSUM BOARD PRODUCTION |
摘要 |
Compositions and methods for reducing the impact of hard water on gypsum board foaming are provided. The compositions include adding a foam to water and a calcined slurry. The foam includes water, dispersed air and a surfactant. Surfactants for use include a hydrophobic portion having an alkyl chain length distribution of about 20% to about 60% C8 chains; about 20% to about 60% C10 chains; about 14% to about 36% C12 chains and about 2% to about 20% C14 chains and also having a hydrophilic portion having about 0.2 to 3.0 ethoxy groups. |
申请公布号 |
EP2225326(A4) |
申请公布日期 |
2012.11.21 |
申请号 |
EP20080868770 |
申请日期 |
2008.12.11 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
WANG, XUMING;SUCECH, STEVEN, W. |
分类号 |
C08L53/02;B01F17/00;C04B24/16;C04B28/14;C04B38/10;C04B103/48 |
主分类号 |
C08L53/02 |
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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