	US 12,071,376 B2
	Gypsum board with improved starch binder
Eli Stav, Charlotte, NC (US); and Ma-Ikay Miatudila, Monroe, NC (US)
Assigned to Gold Bond Building Products, LLC, Charlotte, NC (US)
Filed by Gold Bond Building Products, LLC, Charlotte, NC (US)
Filed on May 22, 2023, as Appl. No. 18/321,035.
Application 18/321,035 is a continuation of application No. 14/575,867, filed on Dec. 18, 2014, granted, now 11,697,618.
Claims priority of provisional application 61/919,450, filed on Dec. 20, 2013.
Prior Publication US 2023/0286864 A1, Sep. 14, 2023
Int. Cl. C04B 28/14 (2006.01); C04B 24/38 (2006.01); C04B 111/00 (2006.01)

CPC C04B 28/145 (2013.01) [C04B 24/38 (2013.01); C04B 2111/0062 (2013.01); Y10T 428/31971 (2015.04)]

14 Claims

1. A gypsum board, comprising:

a gypsum core formed from a gypsum slurry having a composition comprising stucco, a starch, and an aqueous foam,

wherein the starch comprises an acid modified starch and a chemically modified starch, wherein the chemically modified starch is chemically modified by ethoxylation.