	US 11,725,144 B2
	Method for stabilizing sandy soils
Alexandre Omont, Andrezieux (FR); and Xavier Riveau, Andrezieux (FR)
Assigned to S.P.C.M. SA, Andrezieux-Boutheon (FR)
Appl. No. 17/58,286
Filed by S.P.C.M. SA, Andrezieux-Boutheon (FR)
PCT Filed May 23, 2019, PCT No. PCT/EP2019/063385 § 371(c)(1), (2) Date Nov. 24, 2020, PCT Pub. No. WO2019/224328, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 18 54400 (FR), filed on May 24, 2018.
Prior Publication US 2021/0198573 A1, Jul. 1, 2021
Int. Cl. C09K 17/22 (2006.01); C08L 33/02 (2006.01); C08L 33/26 (2006.01)

CPC C09K 17/22 (2013.01) [C08L 33/02 (2013.01); C08L 33/26 (2013.01)]

12 Claims

1. A method for stabilizing sandy soils having a surface, said method comprising applying in one application to said surface of said sandy soils from 0.5 to 5 L·m⁻²of an aqueous solution S comprising from 100 to 2000 ppm of at least one water-soluble polymer A, said at least one water-soluble polymer A comprising ethylenically unsaturated monomers of which 0.01 to 20 mol % consists of at least one hydroxyalkylated monomer of formula (I) ₂C═CR¹R²in which R¹is a hydrogen atom or a methyl group and R²being a hydrocarbon group containing at least one pendant group OH and optionally at least one N or O heteroatom in the hydrocarbon chain; R²being distinct from the C(═O)—OH group, said at least one water-soluble polymer A further comprising at least one anionic monomer selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid, and 2-acrylamido-2-methylpropanesulphonic acid (ATPS), said monomers being in acid, partially salified, or totally salified form, the other monomers being nonionic and/or cationic monomers different from the monomer of formula (I).