公开(公告)号：US20220403293A1

公开(公告)日：2022-12-22

申请号：US17765930

申请日：2020-09-23

Applicant: RHODIA OPERATIONS

Inventor： David James Wilson ,  Pierre-Emmanuel Dufils ,  Jean-Christophe Castaing ,  Konstantin Nikolaev Golemanov ,  Ritu Ahuja ,  Zahrah Mohamed Ikhbar ,  Shu Quan Chua ,  Siu Yu Chan ,  Boh Yi Lian

IPC: C11D3/00 ,  C11D3/37

Abstract: The present invention relates to a novel polymer dispersion and the application in conditioning fabrics. The present invention is further a fabric conditioning composition comprising the same. The fabric conditioning composition provided in the present invention has favorable fabric conditioning performance.

公开(公告)号：US20220372176A1

公开(公告)日：2022-11-24

申请号：US17766059

申请日：2020-09-23

Applicant: RHODIA OPERATIONS

Inventor： David James Wilson ,  Pierre-Emmanuel Dufils ,  Jean-Christophe Castaing

IPC: C08F2/16 ,  C11D3/00 ,  C11D3/37 ,  C08L53/00 ,  C09K23/16

Abstract: The present invention relates to a process for preparing a dispersion (D°), comprising: (E1) a polymerization performed M in an aqueous medium in the presence of: ° at least a pre-polymer (pO) of formula (R11)X—Z11—C(═S)—Z12-[A]-R12, which is soluble in the aqueous medium ° at least one free-radical polymerization initiator; and ° at least one ethylenically unsaturated hydrophobic monomer (m) with a ratio m/pO of the mass of the monomers (m) to the quantity of pre-polymer (pO) preferably below 10 000 g/mol whereby a dispersion of copolymers is obtained, including polymers with a living character; (E2) a conversion of the terminal groups of the copolymers that deprive the copolymers of their living character. The invention also relates to the use of dispersion (D°) for forming dispersions of hydrophobic polymers (Dp), suitable e.g. in fabric conditioning compositions.

公开(公告)号：US20220227895A1

公开(公告)日：2022-07-21

申请号：US17715837

申请日：2022-04-07

Applicant: RHODIA OPERATIONS

Inventor： Pierre-Emmanuel Dufils ,  David James Wilson ,  Kevan Hatchman

IPC: C08F2/20 ,  C08F220/06 ,  C08F220/54 ,  C08F293/00 ,  C08K5/38 ,  C08K5/39 ,  C09K8/524

Abstract: The present invention relates to a process of a process for preparation of a polymer dispersion comprising a step (E) of free radical polymerization in an aqueous medium (M) in the presence of: at least a pre-polymer (pO) soluble in the medium (M), at least one free-radical polymerization initiator, and at least one ethylenically unsaturated hydrophobic monomer (m) which is chosen from an alkyl (meth)acrylate of at least C6, wherein the aqueous medium (M) includes water and at least one water miscible solvent.

公开(公告)号：US11618845B2

公开(公告)日：2023-04-04

申请号：US17290966

申请日：2019-09-27

Applicant: RHODIA OPERATIONS

Inventor： Pierre-Emmanuel Dufils ,  David James Wilson ,  Zongming Xiu ,  Jia Zhou

IPC: C09K8/524 ,  C09K8/68 ,  C09K8/80 ,  C09K8/88 ,  E21B37/06

Abstract: The present invention relates to a method of inhibiting or control wax formation during stimulation treatment of a well. More specifically, the present invention proposes the use of aqueous polymer dispersions suitable as wax inhibitor compositions which are compatible with aqueous fracturing fluids.