The invention relates to bimesogenic compounds of formula I
wherein R
11
, R
12
, MG
11
, MG
12
, X
11
, X
12
and Sp
1
have the meaning given in claim
1
, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
METHOD FOR PRODUCING 2-HYDRAZINOBENZOTHIAZOLE DERIVATIVE
申请人:DIC Corporation
公开号:US20200165215A1
公开(公告)日:2020-05-28
The present invention provides a novel method for producing a 2-hydrazinobenzothiazole derivative. The present invention also provides a method for producing a compound by using the 2-hydrazinobenzothiazole derivative obtained by the production method, and a composition that contains the compound. The present invention also provides a polymerizable composition that is useful in producing film-shaped polymers and contains the compound obtained by the production method. The invention of the present application provides a method for producing a compound represented by general formula (I-C), the method including a step of reacting a compound represented by general formula (I-B) with a compound represented by general formula (I-A) in the presence of at least one compound selected from the group consisting of metal amides, metal hydrides, metal alkoxides, and organic alkali metals. A compound derived from the compound produced by the production method, and a composition that contains the compound are also provided.
The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.
The invention relates to bimesogenic compounds of formula I
wherein R
11
, R
12
, MG
11
, MG
12
, X
11
, X
12
and Sp
1
have the meaning given in claim
1
, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
POLYMERISABLE COMPOUNDS AND THE USE THEREOF IN LIQUID-CRYSTAL DISPLAYS
申请人:MERCK PATENT GMBH
公开号:US20220127532A1
公开(公告)日:2022-04-28
The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.