To provide a polyamide compound having better properties than conventional polyamide compounds.
A polyamide compound comprising a dicarboxylic acid unit represented by the following general formula (1) and a diamine unit represented by the following general formula (2). The polyamide compound of the present invention is characterized by having high energy absorption and high water-absorption resistance rate, and being amorphous (transparent).
Liquid crystal element and method of producing the same
申请人:JSR CORPORATION
公开号:US10948780B2
公开(公告)日:2021-03-16
A liquid crystal element includes a pair of substrates disposed to face each other, a liquid crystal layer disposed between the pair of substrates, and a liquid crystal alignment layer provided on each of the liquid crystal layer sides of the pair of substrates. The liquid crystal layer includes a compound having an alkenyl structure and a compound having a terphenyl ring structure, or includes a compound having an alkenyl structure and a terphenyl ring structure in the same molecule, and the liquid crystal alignment layer is a layer comprising a liquid crystal alignment agent containing a polymer (P) which has at least one selected from the group consisting of a radical polymerizable group, a photoinitiator group, a nitrogen-containing heterocyclic ring (excluding imide rings in polyimides), an amino group and a protected amino group.
Liquid crystal aligning agent, liquid crystal alignment film, method for producing same, liquid crystal element and polymer
申请人:JSR CORPORATION
公开号:US11061282B2
公开(公告)日:2021-07-13
According to the present invention, a liquid crystal aligning agent is configured to contain a polymer (P) which has at least one partial structure selected from the group consisting of a partial structure represented by formula (1) and a partial structure represented by formula (2). In formula (1) and formula (2), X1 represents a tetravalent organic group that has a cyclobutane ring structure, while having at least one substituent in the ring portion of the cyclobutane ring; X2 represents a divalent organic group of a specific structure which has an aliphatic structure and a divalent nitrogen-containing heterocyclic group; and each of R5 and R6 independently represents a hydrogen atom or a monovalent organic group having 1-6 carbon atoms.
Provided is a liquid crystal alignment agent that makes it possible to obtain a liquid crystal alignment film having a superior balance among solvent resistance, liquid crystal alignment properties, and voltage holding ratio. The liquid crystal alignment agent contains a polymer [P] including: at least one ring structure of an oxetane ring and an oxirane ring; (B) a functional group that reacts with at least one of the oxetane ring and the oxirane ring by heating; and (C) an optically aligning group.
Liquid crystal aligning agent, liquid crystal alignment film, liquid crystal element and polymer
申请人:JSR CORPORATION
公开号:US11193067B2
公开(公告)日:2021-12-07
According to the present invention, a liquid crystal aligning agent is configured to contain a polymer [P] which has a partial structure represented by formula (1) and comprises a photo-alignment group. In formula (1), each of R1 and R2 independently represents a hydrogen atom, a halogen atom or a monovalent organic group having one or more carbon atoms; and each of X1 and X2 independently represents —OH, —NH2 or a monovalent organic group having one or more carbon atoms, provided that at least one of X1 and X2 represents “—OR3” or “—NR3R4” (wherein each of R3 and R4 independently represents a hydrogen atom or a monovalent organic group having one or more carbon atoms).