公开(公告)号：US20100239886A1

公开(公告)日：2010-09-23

申请号：US12795125

申请日：2010-06-07

申请人： Qiang Yu ,  Weixin David Song ,  Michael Lynn

发明人： Qiang Yu ,  Weixin David Song ,  Michael Lynn

IPC分类号： B32B13/08 ,  B32B13/00 ,  B32B38/10

CPC分类号： C04B11/00 ,  C04B22/16 ,  C04B24/226 ,  C04B24/383 ,  C04B28/14 ,  C04B2103/0045 ,  C04B2103/408 ,  C04B2111/0062 ,  Y02W30/97 ,  Y10T428/249953 ,  Y10T428/2978 ,  Y10T428/31971 ,  Y10T428/31993 ,  Y10T442/665 ,  C04B14/42 ,  C04B18/24

摘要： The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1%-3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.

摘要翻译： 本发明通常提供含石膏，萘磺酸盐分散剂和预胶化淀粉的含石膏的浆料。 基于干灰泥的重量，萘磺酸盐分散剂的存在量为约0.1重量％至3.0重量％。 基于制剂中干灰泥的重量，预胶化淀粉的存在量为预胶化淀粉的至少约0.5重量％至多约10重量％。 其它浆料添加剂可以包括三偏磷酸盐，促进剂，粘合剂，纸纤维，玻璃纤维和其它已知成分。 本发明还包括用这种浆料制成的含石膏的产品，例如石膏墙板，以及制造石膏墙板的方法。