发明授权
US4584120A Liquid crystal compound and liquid crystal composition 失效
液晶化合物和液晶组合物

Liquid crystal compound and liquid crystal composition
摘要:
The liquid crystal compound of this invention is characterized by having the general formula.R--X--X'--COO--Y--Y'--R'wherein R and R' each represent an alkyl group, and X, X', Y and Y' each represent ##STR1##
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