发明授权
- 专利标题: Preparation of capsules
- 专利标题(中): 胶囊的制备
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申请号: US12538228申请日: 2009-08-10
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公开(公告)号: US09005494B2公开(公告)日: 2015-04-14
- 发明人: Peter J. Valianatos , Rajesh Chebiyam , Jeremy J. Manning , Michael L. Steiner , Thomas H. Whitesides , Michael D. Walls
- 申请人: Peter J. Valianatos , Rajesh Chebiyam , Jeremy J. Manning , Michael L. Steiner , Thomas H. Whitesides , Michael D. Walls
- 申请人地址: US MA Billerica
- 专利权人: E Ink Corporation
- 当前专利权人: E Ink Corporation
- 当前专利权人地址: US MA Billerica
- 代理商 David J. Cole
- 主分类号: B01J13/02
- IPC分类号: B01J13/02 ; C08F130/08 ; B01J13/08 ; G02F1/167
摘要:
Prior art processes for producing protein-based capsules (for example, capsules for use in electrophoretic media) tend to be wasteful because they produce many capsules outside the desired size range, which is typically about 20 to 50 μm. Capsule size distribution and yields can be improved by either (a) emulsifying a water-immiscible phase in a preformed coacervate of the protein; or (b) using a limited coalescence process with colloidal alumina as the surface-active particulate material.
公开/授权文献
- US20100044894A1 PREPARATION OF CAPSULES 公开/授权日:2010-02-25