POLYMERIC MICROSPHERE WITH SURFACTANT WRAPPED THEREIN AND PREPARATION METHOD THEREFOR

Title:

POLYMERIC MICROSPHERE WITH SURFACTANT WRAPPED THEREIN AND PREPARATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2023/015730

Kind Code:

A1

Abstract:

The present invention provides a polymeric microsphere with a surfactant wrapped therein, comprising a polymeric microsphere and coconut diethanol amide wrapped therein. The present invention further provides a preparation method therefor, comprising: dispersing a first surfactant in an oil to form an oil phase; dissolving acrylic acid, acrylamide and a cross-linking agent in water to obtain a water phase; dividing the water phase into two parts, adding a first initiator to the first part of the water phase, adding a resulting solution to the oil phase for an emulsification reaction to obtain a reaction base solution; adding a second surfactant to the second part of the water phase, and adding a second initiator to obtain an aqueous monomer solution; and adding same to the reaction base solution for a reaction at a maintained temperature. According to the polymeric microsphere with a surfactant wrapped therein of the present invention, a microsphere is used as a functional carrier, and a surfactant is wrapped therein; moreover, the release and functioning of functional components in a deep stratum are controlled by means of an intelligent controlled-release technology, thereby achieving the efficient combined effects of "modifying-washing".

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Inventors:

TIE LEILEI (CN)
LI XIANG (CN)
WANG HAOYI (CN)
CHANG ZHEN (CN)
YU MENG (CN)
QIAO QILIN (CN)
JI WENXIONG (CN)
WU BAO (CN)

Application Number:

PCT/CN2021/126172

Publication Date:

February 16, 2023

Filing Date:

October 25, 2021

Export Citation:

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Assignee:

CHINA OILFIELD SERVICES LTD (CN)

International Classes:

C08F220/56; C08F2/44; C08F220/06; C08F222/38; C09K8/536; C09K8/584

Foreign References:

CN113527576A	2021-10-22
CN108315003A	2018-07-24
CN112851856A	2021-05-28
AU2020103311A4	2021-01-14

Attorney, Agent or Firm:

HYLANDS LAW FIRM (CN)

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