	US 12,258,295 B2
	Thiosulfates for use as retarders for magnesium phosphate cement pastes
Lavinia Stefan, Saint Germain en Laye (FR); Thierry Chaussadent, Paris (FR); and Hela Bessaies-Bey, Mets (FR)
Assigned to ORANO DEMANTELEMENT, Chatillon (FR); and UNIVERSITE GUSTAVE EIFFEL, Champs-sur-Marne (FR)
Appl. No. 17/757,634
Filed by ORANO DEMANTELEMENT, Chatillon (FR); and UNIVERSITE GUSTAVE EIFFEL, Champs-sur-Marne (FR)
PCT Filed Dec. 8, 2020, PCT No. PCT/FR2020/052338 § 371(c)(1), (2) Date Jun. 17, 2022, PCT Pub. No. WO2021/123564, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1915323 (FR), filed on Dec. 20, 2019.
Prior Publication US 2023/0024215 A1, Jan. 26, 2023
Int. Cl. C04B 22/14 (2006.01); C04B 28/34 (2006.01); C04B 103/22 (2006.01)

CPC C04B 22/147 (2013.01) [C04B 28/34 (2013.01); C04B 2103/22 (2013.01)]

16 Claims

1. A method for delaying a setting of a cement paste comprising a magnesium phosphate cement, comprising including a retarder in the cement paste, wherein the retarder is a thiosulfate.