Invention Grant
- Patent Title: Starch-containing microsphere and preparation method and use thereof
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Application No.: US17658173Application Date: 2022-04-06
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Publication No.: US11891458B2Publication Date: 2024-02-06
- Inventor: Chao Yang , Chen Wang , Zequn Yin , Quanjie Liu
- Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- Applicant Address: CN Beijing
- Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION,DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- Current Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION,DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- Current Assignee Address: CN Beijing; CN Liaoning
- Agency: NKL Law
- Agent Allen Xue
- Priority: CN 1710720844.7 2017.08.22 CN 1710720850.2 2017.08.22 CN 1710720851.7 2017.08.22 CN 1710720862.5 2017.08.22 CN 1710720863.X 2017.08.22 CN 1710720864.4 2017.08.22
- The original application number of the division: US16641504
- Main IPC: C08B31/00
- IPC: C08B31/00 ; C08B31/12 ; C09K8/42 ; E21B21/00 ; E21B33/13 ; E21B33/138
Abstract:
A preparation method of the starch-containing microsphere includes the steps of first reacting starch with a low concentration of epichlorohydrin, and then reacting the resultant product with a surfactant, followed by final crosslinking to give microspheres. The starch-containing microspheres thus prepared are polydisperse starch-containing microspheres with a uniform particle size distribution, with the particle size being in a range of 0.1-500 μm.
Public/Granted literature
- US20220227893A1 STARCH-CONTAINING MICROSPHERE AND PREPARATION METHOD AND USE THEREOF Public/Granted day:2022-07-21
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