公开(公告)号：US10464847B2

公开(公告)日：2019-11-05

申请号：US15359196

申请日：2016-11-22

Applicant: United States Gypsum Company

Inventor： Yijun Sang ,  Chris C. Lee ,  Cesar Chan ,  Weixin David Song

IPC: C08B30/14 ,  C04B28/14 ,  B28B1/16 ,  C08L3/02 ,  C08L3/08 ,  C09J103/02 ,  C09J103/08 ,  E04C2/04 ,  C04B24/38 ,  C04B111/00

Abstract: Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise), and an extruded pregelatinized starch.

公开(公告)号：US10286572B2

公开(公告)日：2019-05-14

申请号：US13659423

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: B32B5/20 ,  B28B19/00 ,  F16L41/02 ,  B29B7/74 ,  B29B7/76

Abstract: A flow splitter can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit can include an inlet end and a junction end. The inlet conduit is disposed along a main flow axis extending between the inlet end and the junction end. The inlet end defines an inlet opening. The junction end defines first and second junction openings. The first junction opening is disposed in spaced relationship to the second junction opening. The junction portion is disposed at the junction end of the inlet conduit between the first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to the main flow axis. The flow splitter can be placed in fluid communication with a cementitious slurry mixer and a slurry distributor with the flow splitter disposed therebetween.

公开(公告)号：US09828441B2

公开(公告)日：2017-11-28

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 ,  C04B111/00

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.