Invention Grant
- Patent Title: Method for producing spherical polysilsesquioxane particles
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Application No.: US16068007Application Date: 2016-10-06
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Publication No.: US10662293B2Publication Date: 2020-05-26
- Inventor: Sebastian Knoer
- Applicant: Wacker Chemie AG
- Applicant Address: DE Munich
- Assignee: WACKER CHEMIE AG
- Current Assignee: WACKER CHEMIE AG
- Current Assignee Address: DE Munich
- Agency: Brooks Kushman P.C.
- International Application: PCT/EP2016/073902 WO 20161006
- International Announcement: WO2018/065058 WO 20180412
- Main IPC: C08G77/06
- IPC: C08G77/06 ; C08G77/18 ; A61K8/891 ; C08G77/04 ; A61Q19/00 ; A61K8/02 ; C08G77/32 ; C08G77/00
Abstract:
Spherical silsesquioxane particles are formed by controlled hydrolysis of trialkoxysilane(s) in acidic media, followed by addition of base, storage for at least 2 hours, and spray drying. Essentially non-agglomerated spherical particles are produced without milling.
Public/Granted literature
- US20190002642A1 METHOD FOR PRODUCING SPHERICAL POLYSILSESQUIOXANE PARTICLES Public/Granted day:2019-01-03
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