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公开(公告)号：US11912934B2
公开(公告)日：2024-02-27
申请号：US17436848
申请日：2020-03-11
Applicant: RHODIA OPERATIONS
Inventor： Helène Martin , Patrick Moreau , Arnaud Cadix
CPC classification number: C09K8/68 , C09K8/602 , C09K2208/28
Abstract: The instant invention friction reducer formulation comprising friction reducer polymers such as PAM within the dispersed phase of an inverse emulsion containing a composition C which comprises a mixture of: —at least an alkanolamide emulsifier; and —a block copolymer comprising: —a hydrophilic block A comprising units deriving from a mono-alpha-ethylenically-unsaturated monomers; and —a hydrophobic block B.
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