- 专利标题: PROCESS OF MAKING POLYIMIDE MICRONIZED PARTICLES, PARTICLES FORMED THEREFROM, AND ARTICLES PREPARED THEREFROM
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申请号: US15737649申请日: 2016-06-29
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公开(公告)号: US20180155506A1公开(公告)日: 2018-06-07
- 发明人: Viswanathan Kalyanaraman , Hareesh Shamrao Deshpande , Ekrem Mehmet Morali
- 申请人: SABIC Global Technologies B.V.
- 优先权: IN1949/DEL/2015 20150630
- 国际申请: PCT/US2016/039994 WO 20160629
- 主分类号: C08J3/14
- IPC分类号: C08J3/14 ; C08J3/07 ; C08G73/10 ; C09D179/08 ; C09J179/08 ; B01D21/26 ; B01D33/64
摘要:
A method of manufacturing polyimide particles, including: combining a polyimide solution including a polyimide and an organic solvent with an aqueous solution including water in the presence of an emulsifying surfactant at a shear rate from 1,000 to 3,000 revolutions per minute, from 1,000 to 2,500 revolutions per minute, or from 1,500 to less than 2,500 revolutions per minute to form an emulsion; removing the organic solvent to form an aqueous polymer dispersion including polyimide particles; and recovering the polyimide particles, which have a spherical morphology, and a volume based D10 diameter from 3 to 50 micrometers, preferably from 3 to 45 micrometers and a volume based D90 diameter from 3 to 80 micrometers, from 3 to 75 micrometers, or from 3 to 45 micrometers and a volume based D100 diameter from 3 to 100 micrometers, from 3 to 75 micrometers, or from 10 to 75 micrometers.
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