公开(公告)号：US09822325B2

公开(公告)日：2017-11-21

申请号：US14713532

申请日：2015-05-15

Applicant: S.P.C.M. SA

Inventor： Cédrick Favero ,  Olivier Braun ,  Pierrick Cheucle ,  Bernard Quillien

IPC: C10M173/00 ,  C10M173/02 ,  C10M151/02 ,  C10L1/02 ,  C10L1/196 ,  C10L1/236

CPC classification number: C10M151/02 ,  C10L1/023 ,  C10L1/1963 ,  C10L1/2364 ,  C10L2200/0469 ,  C10L2230/14 ,  C10L2250/04

Abstract: This invention involves a process for reducing friction in ethanol during its transport through pipelines. This process involves combining ethanol with a polymer-based composition, characterized in that the polymer is obtained from at least 50 mol % of at least one monomer selected from the group comprising N-substituted acrylamides, N-substituted methacrylamides, N,N-substituted acrylamides, N,N-substituted methacrylamides, substituted acrylates and substituted methacrylates.

公开(公告)号：US10858566B2

公开(公告)日：2020-12-08

申请号：US16848338

申请日：2020-04-14

Applicant: S.P.C.M. SA

Inventor： Cédrick Favero ,  Bruno Giovanneti ,  Olivier Ratel ,  Pierrick Cheucle

IPC: C09K8/12 ,  C08F2/58 ,  C08F220/58

Abstract: The invention relates to a water-soluble branched sulfonated amphoteric polymer, for a water-based drilling fluid, wherein the polymer is obtained by precipitation polymerization, in a mixture of polar solvents, of at least one N,N′-dialkylacrylamide monomer and one sulfonic acid-containing monomer, in the presence of tetraallylammonium halide as branching agent.The invention also relates to a water-based drilling fluid for subterranean boreholes, including: an aqueous fluid, said aqueous fluid being selected from sea water, brine, or salt-containing aqueous solution, between 0.1 and 5.0 weight percent of the water-soluble branched sulfonated amphoteric polymer described above.

公开(公告)号：US10000597B2

公开(公告)日：2018-06-19

申请号：US15326603

申请日：2015-07-24

Applicant: S.P.C.M. SA

Inventor： Pierrick Cheucle

IPC: C08F220/06 ,  C08F220/26 ,  C08F2/32 ,  C08F2/38 ,  C09K8/035 ,  D21H19/10

CPC classification number: C08F220/06 ,  C08F2/32 ,  C08F2/38 ,  C09K8/035 ,  D21H19/10 ,  C08F220/20

Abstract: This invention relates to a water-soluble polymer in bead or powder form, characterized in that it has a Brookfield viscosity greater than 100 cps, and in that it is obtained by inverse suspension or inverse emulsion polymerization, in the presence of a transfer agent, of monomers where less than 20 mol % is made up of a hydroxyalkyl monomer with formula H2C═CR1R2, R1 being a hydrogen atom or a methyl group and R2 being a hydrocarbon group containing at least one OH pendant group or at least one epoxide group and optionally at least one N or O heteroatom in the hydrocarbon chains; R2 being different from the C(═O)—OH group.