	US 12,012,516 B2
	Dehydrated binders in solid form, production method thereof, and method for rehydrating same
Jean-Marie Poulet, Senlis (FR); Didier Labouche, Saint Amand les Eaux (FR); and Stéphanie Bruyere, Villers Sous Saint-Leu (FR)
Assigned to NOF METAL COATINGS EUROPE, Creil (FR)
Appl. No. 16/766,815
Filed by NOF METAL COATINGS EUROPE, Creil (FR)
PCT Filed Nov. 28, 2018, PCT No. PCT/EP2018/082884 § 371(c)(1), (2) Date May 26, 2020, PCT Pub. No. WO2019/106037, PCT Pub. Date Jun. 6, 2019.
Claims priority of application No. 1761267 (FR), filed on Nov. 28, 2017.
Prior Publication US 2021/0017398 A1, Jan. 21, 2021
Int. Cl. C09D 1/00 (2006.01); C08K 3/22 (2006.01); C08K 5/5419 (2006.01); C09D 5/08 (2006.01); C09D 7/63 (2018.01)

CPC C09D 1/00 (2013.01) [C08K 3/22 (2013.01); C08K 5/5419 (2013.01); C09D 5/08 (2013.01); C09D 7/63 (2018.01); C08K 2003/2237 (2013.01); C08K 2003/2244 (2013.01)]

20 Claims

1. A solid composition, intended for the preparation of an aqueous composition, comprising a binder based on silane and at least one of a titanate precursor and a zirconate precursor, wherein

the solid composition is water-hydratable,

wherein the silane carries at least one function hydrolyzable to a hydroxyl function, and the solid composition has a Ti/Si molar ratio ranging from 10/90 to 60/40;

wherein the solid composition is obtained by a process comprising a step of dehydrating an aqueous composition comprising the at least one of the titanate precursor and/or the zirconate precursor, and the silane carrying at least one function hydrolysable to a hydroxyl function having the Ti/Si molar ratio ranging from 10/90 to 60/40;

wherein the aqueous composition further comprises a heavy organic solvent, an ionic liquid, or mixtures thereof, wherein the silane additionally carries an epoxy function.