申请人:The Secretary of State for Defence in her Britannic Majesty's Government
公开号:US04261651A1
公开(公告)日:1981-04-14
A liquid crystal compound having the formula: ##STR1## where X is --CH.sub.2.CH.sub.2 -- or CH.sub.2 O Y is ##STR2## and R is a straight or branched (possibly chiral) alkyl group having up to 15 carbon atoms.