发明授权
- 专利标题： Heterocyclically substituted ethanes and their use in liquid crystal materials and devices
- 专利标题（中）： 杂环取代的乙烷及其在液晶材料和器件中的应用
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申请号： US912262申请日： 1986-09-29
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公开(公告)号： US4698176A公开(公告)日： 1987-10-06
- 发明人: George W. Gray , Beatrice M. Nicholas
- 申请人： George W. Gray , Beatrice M. Nicholas
- 申请人地址： GB2 London
- 专利权人： The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
- 当前专利权人： The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
- 当前专利权人地址： GB2 London
- 优先权： GBX8400665 19840111
- 主分类号： C07C31/135
- IPC分类号： C07C31/135 ; C07C47/11 ; C07C53/134 ; C07D239/00 ; C07D239/26 ; C07D239/34 ; C07D319/06 ; C09K19/34 ; C09K19/44 ; G02F1/13
摘要：
A heterocyclically substituted ethane having a formula:R.sub.1 -Cy-CH.sub.2.CH.sub.2 -A-R.sub.2 Formula 1whereinA represents a heterocyclic ring selected from a trans 2,5 disubstituted 1,3 dioxan ring and a 2,5 disubstituted 1,3-pyrimidine ring;R.sub.1 represents an alkyl group having from 1 to 15 carbon atoms and R.sub.2 represents a group selected from hydrogen, alkyl having from 1 to 15 carbon atoms and alkoxy having from 1 to 15 carbon atoms provided that where A is a trans 2,5 disubstituted 1,3 dioxan ring R.sub.2 is alkyl; andCy represents a trans-1,4 disubstituted cyclohexane ring.
公开/授权文献
- US5880933A Heat sinking module cover 公开/授权日：1999-03-09
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