US 2023/0339811 A1

Gypsum set accelerator

(22) 01.11.2022

(43) 26.10.2023

(57) Provided are a gypsum set accelerator wherein the gypsum set accelerator is a dry-milled mixture comprising calcium sulfate dihydrate co-ground with one or more of the follow­ing: a polycarboxylic ether (PCE) and/or a sulfonated mela­mine polycondensate (SMP), gypsum slurries formulated with the gypsum set accelerator and methods for producing the gypsum set accelerator and manufacturing gypsum prod­ucts with the gypsum set accelerator.

(71) United States Gypsum Company, Chicago, IL (US)

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