- 专利标题： Starch-containing microsphere and preparation method and use thereof
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申请号： US17658173申请日： 2022-04-06
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公开(公告)号： US11891458B2公开(公告)日： 2024-02-06
- 发明人: Chao Yang , Chen Wang , Zequn Yin , Quanjie Liu
- 申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- 申请人地址： CN Beijing
- 专利权人： CHINA PETROLEUM & CHEMICAL CORPORATION,DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- 当前专利权人： CHINA PETROLEUM & CHEMICAL CORPORATION,DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.
- 当前专利权人地址： CN Beijing; CN Liaoning
- 代理机构： NKL Law
- 代理商 Allen Xue
- 优先权： 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
- 分案原申请号： US16641504
- 主分类号： C08B31/00
- IPC分类号： C08B31/00 ; C08B31/12 ; C09K8/42 ; E21B21/00 ; E21B33/13 ; E21B33/138
摘要：
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.
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