公开(公告)号：WO2009025989A1

公开(公告)日：2009-02-26

申请号：PCT/US2008/072217

申请日：2008-08-05

Applicant: UNITED STATES GYPSUM COMPANY ,  WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred

Inventor： WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred

IPC: C04B28/16

CPC classification number: C04B24/2647 ,  C04B24/165 ,  C04B28/14 ,  C04B28/145 ,  C04B2103/408 ,  C04B2111/0062 ,  C04B38/00 ,  C04B2103/0099 ,  C04B24/2658 ,  C04B7/02 ,  C04B14/04 ,  C04B22/064 ,  C04B22/10 ,  C04B24/10 ,  C04B24/38 ,  C04B24/42 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/48 ,  C04B2103/65 ,  C04B2103/67 ,  C04B7/323 ,  C04B22/143 ,  C04B38/10

Abstract: A gypsum slurry is described that includes water a hydraulic component comprising at least 50% calcined gypsum by weight based on the dry weight of the hydraulic component, foam, a defoamer a polycarboxylate dispersant having olefimc unsaturated mono-carboxylic acid moieties and (poly)oxyalkylene moieties, a first portion of a retarder and a second portion of a retarder In some embodiments of the invention, the defoamer is combined with the dispersant prior to being added to the gypsum slurry The defoamer and dispersant can be added as a physical mixture, wherein the defoamer is attached onto the dispersant polymer or a combination thereof In some embodiments, a gypsum building panel is made from the gypsum slurry

Abstract translation: 描述了一种石膏浆料，其包括基于水硬性组分的干重，泡沫，泡沫，消泡剂，含有烯不饱和单羧酸部分的聚羧酸酯分散体和（聚）氧化烯部分的至少50重量％煅烧石膏的水硬性组分 部分，缓凝剂的第一部分和缓凝剂的第二部分在本发明的一些实施方案中，消泡剂在加入石膏浆料之前与分散剂结合可以作为物理混合物加入消泡剂和分散剂，其中 消泡剂附着在分散剂聚合物上或其组合。在一些实施方案中，石膏建筑面板由石膏浆料

公开(公告)号：WO2009086390A1

公开(公告)日：2009-07-09

申请号：PCT/US2008/088185

申请日：2008-12-23

Applicant: UNITED STATES GYPSUM COMPANY ,  WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred

Inventor： WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred

IPC: C04B28/14 ,  C04B9/04 ,  H05B6/00

CPC classification number: C04B28/145 ,  C04B2111/0062 ,  C04B14/12 ,  C04B38/106 ,  C04B40/0028 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/408 ,  C04B2103/44 ,  C04B2103/54 ,  C04B2103/63 ,  C04B2103/65 ,  C04B2103/67 ,  C04B2103/69 ,  C04B2103/0086 ,  C04B22/085 ,  C04B22/10 ,  C04B22/124 ,  C04B24/04 ,  C04B24/06 ,  C04B24/163 ,  C04B24/2641

Abstract: A gypsum slurry includes calcium sulfate hemihydrate, a set retarder in amounts of at least 0.15lb/MSF, a set accelerator, water and aqueous foam. The set accelerator is selected to provide nucleation sites for crystallization of calcium sulfate dihydrate and is present in amounts of at least 5 Ib/MSF. The water to calcium sulfate hemihydrate ratio is at least 0.95. Further, aqueous foam is added in amounts sufficient to create a gypsum board having a dry density of about 29 to about 35 lbs/ft 3 .

Abstract translation: 石膏浆料包括硫酸钙半水合物，至少0.15lb / MSF的固化缓凝剂，凝固的促进剂，水和水性泡沫。 选择凝固促进剂以提供硫酸钙二水合物的结晶的成核位点，并且以至少5lb / MSF的量存在。 水至硫酸钙半水合物的比例至少为0.95。 此外，水性泡沫体的添加量足以产生干密度为约29至约35lbs / ft 3的石膏板。

公开(公告)号：WO2009025988A1

公开(公告)日：2009-02-26

申请号：PCT/US2008/072214

申请日：2008-08-05

Applicant: UNITED STATES GYPSUM COMPANY ,  BLACKBURN, David, R. ,  LU, Runhai ,  TRACY, Sharon, L. ,  LIU, Qingxia ,  WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred ,  FALL, John, L. ,  SHAKE, Michael, P. ,  LEE, Chris

Inventor： BLACKBURN, David, R. ,  LU, Runhai ,  TRACY, Sharon, L. ,  LIU, Qingxia ,  WITTBOLD, James, R. ,  PETERSEN, Bruce, Lynn ,  LI, Alfred ,  FALL, John, L. ,  SHAKE, Michael, P. ,  LEE, Chris

IPC: C04B28/16

CPC classification number: C04B24/2647 ,  C04B24/165 ,  C04B28/14 ,  C04B28/145 ,  C04B2103/408 ,  C04B2111/0062 ,  C04B38/00 ,  C04B2103/0099 ,  C04B24/2658 ,  C04B7/02 ,  C04B14/04 ,  C04B22/064 ,  C04B22/10 ,  C04B24/10 ,  C04B24/38 ,  C04B24/42 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/48 ,  C04B2103/65 ,  C04B2103/67 ,  C04B7/323 ,  C04B22/143 ,  C04B38/10

Abstract: A gypsum slurry is described that includes water, a hydraulic component comprising at least 50% calcined gypsum by weight based on the dry weight of the hydraulic component, foam, a defoamer and a polycarboxylate dispersant In some embodiments of the invention, the defoamer is combined with the dispersant prior to being added to the gypsum slurry The defoamer and dispersant can be added as a physical mixture, wherein the defoamer is attached onto the dispersant polymer, or a combination thereof In some embodiments, a gypsum building panel is made from the gypsum slurry.

Abstract translation: 描述了一种石膏浆料，其包括水，基于水硬组分的干重，至少50重量％煅烧石膏的水硬组分，泡沫，消泡剂和聚羧酸盐分散剂。在本发明的一些实施方案中，将消泡剂组合 在分散剂加入石膏浆料之前，可以将消泡剂和分散剂作为物理混合物加入，其中消泡剂连接在分散剂聚合物上，或其组合。在一些实施方案中，石膏建筑面板由石膏制成 泥浆。