公开(公告)号：US20150010767A1

公开(公告)日：2015-01-08

申请号：US14494547

申请日：2014-09-23

Applicant: United States Gypsum Company

Inventor： Yijun SANG ,  Weixin D. SONG ,  Cesar CHAN ,  Chris C. LEE

IPC: C08B30/14 ,  C04B28/14 ,  C04B24/10 ,  E04C2/26

CPC classification number: C08B30/14 ,  C04B28/14 ,  C04B2111/0062 ,  C04B2111/00672 ,  E04C2/26 ,  Y02W30/97 ,  Y10T428/31971 ,  C04B24/383 ,  C04B14/28 ,  C04B18/24

Abstract: Disclosed are methods relating to an extruded pregelatinized, partially hydrolyzed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount. In the method, pregelatinization and acid-modification of the starch precursor occurs in one step in an extruder. Also disclosed are methods of preparing board using the starch prepared according to the methods, as well as starches and boards prepared by various methods of the invention.

Abstract translation: 公开了与至少将水，非预胶化淀粉和酸混合以形成淀粉前体制备的挤出预胶化的部分水解淀粉相关的方法。 酸可以是基本上避免螯合钙离子或少量强酸的弱酸。 在该方法中，淀粉前体的预胶化和酸改性在挤出机中一步进行。 还公开了使用根据该方法制备的淀粉制备板的方法，以及通过本发明的各种方法制备的淀粉和板。

公开(公告)号：US20130216717A1

公开(公告)日：2013-08-22

申请号：US13844364

申请日：2013-03-15

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Bill RAGO ,  James WITTBOLD ,  Alfred C. LI ,  Chris C. LEE

IPC: B28B19/00

CPC classification number: B28B19/0092 ,  B05C5/0254 ,  B05C5/0262 ,  B29C33/30 ,  Y10T137/87652

Abstract: A slurry distributor can include a distribution conduit and a slurry wiping mechanism. The distribution conduit extends generally along a longitudinal axis and includes an entry portion, a distribution outlet in fluid communication with the entry portion, and a bottom surface extending between the entry portion and the distribution outlet. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The slurry wiping mechanism includes a movable wiper blade in contacting relationship with the bottom surface of the distribution conduit. The wiper blade is reciprocally movable between a first position and a second position over a clearing path, which is disposed adjacent the distribution outlet.

Abstract translation: 浆料分配器可以包括分配导管和浆料擦拭机构。 分配导管大致沿着纵向轴线延伸并且包括入口部分，与入口部分流体连通的分配出口以及在入口部分和分配出口之间延伸的底表面。 分配出口沿着基本上垂直于纵向轴线的横向轴线延伸预定距离。 浆料擦拭机构包括与分配导管的底表面接触的可动刮水片。 擦拭器刮片可在位于分配出口附近的清理路径上的第一位置和第二位置之间往复移动。

公开(公告)号：US20130099027A1

公开(公告)日：2013-04-25

申请号：US13659516

申请日：2012-10-24

Applicant: United States Gypsum Company

Inventor： Alfred LI ,  Chris C. LEE ,  Cesar CHAN ,  Ronald E. SCHENCK ,  Weixin D. SONG ,  Curt LORING ,  James WITTBOLD ,  William RAGO

IPC: B05B1/26 ,  B05D5/00 ,  B05C3/02

CPC classification number: B28B19/0092 ,  B29B7/74 ,  B29B7/76 ,  F16L41/023 ,  Y10T137/85938

Abstract: A slurry distributor can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first and second feed inlets disposed in spaced relationship to each other. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis. The first and second feed inlets each has an opening with a cross-sectional area. The entry portion of the distribution conduit has an opening with a cross-sectional area which is greater than the sum of the cross-sectional areas of the openings of the first and second feed inlets. The slurry distributor can be placed in fluid communication with a gypsum slurry mixer.

Abstract translation: 浆料分配器可以包括进料管道和与其流体连通的分配管道。 进料导管可以包括彼此间隔开地设置的第一和第二进料入口。 分配管道可以大致沿着纵向轴线延伸并且包括与其流体连通的进入部分和分配出口。 入口部分与进料管道的第一和第二进料口流体连通。 分配出口沿着横向轴线延伸预定距离。 第一和第二进料口各自具有具有横截面积的开口。 分配导管的进入部分具有一个开口，该开口的横截面积大于第一和第二进料入口的开口的横截面面积之和。 浆料分配器可以与石膏浆料混合器流体连通。