公开(公告)号：EP2755812B1

公开(公告)日：2018-01-31

申请号：EP12832128.8

申请日：2012-09-14

申请人： Certainteed Gypsum, Inc.

发明人： COLLEGE, John W. ,  LIBUNAO, Shane ,  HARRIS, Mark

IPC分类号： B29C65/00

CPC分类号： C04B38/10 ,  B28B19/0092 ,  B29C44/326 ,  B32B37/24 ,  B32B38/164 ,  B32B2037/243 ,  B32B2305/30 ,  B32B2315/18 ,  B32B2317/12 ,  B32B2607/00 ,  C04B28/14 ,  C04B2103/42 ,  C04B2111/0062 ,  C04B2111/40 ,  E04C2/043 ,  E04C2/30 ,  Y10T156/1712 ,  C04B24/38 ,  C04B38/04 ,  C04B40/0071 ,  C04B40/0263 ,  C04B38/0645

摘要： The present invention relates to a system and method for the production of gypsum board using starch pellets. In accordance with the present disclosure, the starch necessary for board formation is provided in the form of starch pellets. These pellets are mixed with a gypsum slurry in a mixer. The pellets are initially insoluble and do not dissolve. However, during subsequent drying stages, the pellets become soluble and dissolve into the gypsum phase. This both provides the desired starch component and also results in the formation of voids within the set gypsum.

公开(公告)号：EP3371100A1

公开(公告)日：2018-09-12

申请号：EP16862948.3

申请日：2016-11-03

申请人： CertainTeed Gypsum, Inc.

发明人： COLLEGE, John W. ,  LEE, Sang-Ho ,  HILTON, Chris ,  KIANG, Yu-Zhi ,  LAI, Choung-Houng ,  GLAVIN, George ,  ILYASHENKO, Helen

IPC分类号： C01B17/02 ,  C01B17/50 ,  C01B17/04

CPC分类号： C01F11/468 ,  C01F11/466 ,  C01G1/12 ,  C01G3/12 ,  C01P2006/80 ,  C04B11/007 ,  C04B28/145 ,  C04B2111/0062 ,  C04B2111/10 ,  C04B14/42 ,  C04B22/14 ,  C04B24/08 ,  C04B24/10 ,  C04B24/383 ,  C04B38/10 ,  C04B2103/0016 ,  C04B2103/20

摘要： Disclosed are various methods for reducing levels of elemental sulfur within gypsum products such as wall board. Gypsum sometimes includes increased levels of elemental sulfur. Such sulfur can be corrosive and otherwise harmful at elevated levels. The disclosure contemplates reacting the elemental sulfur with copper to copper sulfide. This reaction has the benefit of reducing the levels of elemental sulfur present within the final gypsum product. The copper can be added at any of a variety of locations in the manufacturing process. This is a very efficient method for reducing elemental sulfur in the production of gypsum products.

公开(公告)号：EP2755812A1

公开(公告)日：2014-07-23

申请号：EP12832128.8

申请日：2012-09-14

申请人： Certainteed Gypsum, Inc.

发明人： COLLEGE, John W. ,  LIBUNAO, Shane ,  HARRIS, Mark

IPC分类号： B29C65/00

CPC分类号： C04B38/10 ,  B28B19/0092 ,  B29C44/326 ,  B32B37/24 ,  B32B38/164 ,  B32B2037/243 ,  B32B2305/30 ,  B32B2315/18 ,  B32B2317/12 ,  B32B2607/00 ,  C04B28/14 ,  C04B2103/42 ,  C04B2111/0062 ,  C04B2111/40 ,  E04C2/043 ,  E04C2/30 ,  Y10T156/1712 ,  C04B24/38 ,  C04B38/04 ,  C04B40/0071 ,  C04B40/0263 ,  C04B38/0645

摘要： The present invention relates to a system and method for the production of gypsum board using starch pellets. In accordance with the present disclosure, the starch necessary for board formation is provided in the form of starch pellets. These pellets are mixed with a gypsum slurry in a mixer. The pellets are initially insoluble and do not dissolve. However, during subsequent drying stages, the pellets become soluble and dissolve into the gypsum phase. This both provides the desired starch component and also results in the formation of voids within the set gypsum.

摘要翻译： 本发明涉及使用淀粉颗粒生产石膏板的系统和方法。 根据本公开，用于板形成所需的淀粉以淀粉颗粒的形式提供。 将这些颗粒与混合器中的石膏浆料混合。 颗粒最初不溶，不溶解。 然而，在随后的干燥阶段期间，颗粒变得可溶并溶解在石膏相中。 这两者都提供了所需的淀粉组分，并且还导致在集合的石膏中形成空隙。