Invention Grant
- Patent Title: Non-linear side chain liquid crystal polyorganosiloxanes and methods for their preparation and use in electro-optic applications and devices
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Application No.: US16088283Application Date: 2017-05-16
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Publication No.: US11001758B2Publication Date: 2021-05-11
- Inventor: Jonathan Hannington , Nanguo Liu , Bianxiao Zhong
- Applicant: Dow Silicones Corporation
- Applicant Address: US MI Midland
- Assignee: Dow Silicones Corporation
- Current Assignee: Dow Silicones Corporation
- Current Assignee Address: US MI Midland
- Agent Catherine U. Brown
- International Application: PCT/US2017/032832 WO 20170516
- International Announcement: WO2017/213809 WO 20171214
- Main IPC: C09K19/40
- IPC: C09K19/40 ; C08G77/12 ; C08G77/06 ; C09K19/44 ; G02F1/137 ; C09K19/30 ; C08G77/38 ; C09D183/04 ; C09D183/08 ; C08G77/388 ; C09K19/38 ; C08G77/00 ; C09K19/12
Abstract:
A non-linear side chain liquid crystal polyorganosiloxane differs from previous side chain liquid crystal polyorganosiloxanes. A method for preparing the non-linear side chain liquid crystal polyorganosiloxane involves hydrosilylation reaction of a SiH rich intermediate with an aliphatically unsaturated mesogenic compound. A liquid crystal composition containing the non-linear side chain liquid crystal polyorganosiloxane is useful in dynamic scattering mode electro-optic device for various applications.
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