SECOND-ORDER NONLINEAR OPTICAL COMPOUND AND NONLINEAR OPTICAL ELEMENT COMPRISING THE SAME
申请人:Otomo Akira
公开号:US20120172599A1
公开(公告)日:2012-07-05
Problem to Be Solved: to provide a chromophore having a far superior nonlinear optical activity to conventional chromophores and to provide a nonlinear optical element comprising said chromophore.
Solution: a chromophore comprising a donor structure D, a π-conjugated bridge structure B, and an acceptor structure A, the donor structure D comprising an aryl group substituted with a substituted oxy group; and a nonlinear optical element comprising said chromophore.
Liquid-crystalline and infrared-sensitive liquid-crystalline polyesters suitable for use in optical data storage, processes for the preparation of same, and an apparatus containing an infrared-sensitive liquid-crystalline polyester
申请人:Akzo Nobel N.V.
公开号:EP0478052A1
公开(公告)日:1992-04-01
Disclosed are liquid-crystalline and infrared-sensitive liquid-crystalline polyesters for optical data storage, processes for the preparation of the same, and an apparatus comprising an infrared-sensitive liquid-crystalline polyester. Owing to covalently bonded dye the liquid crystalline polyester is infrared sensitive and high concentrations of dye are obtainable, without having detrimental effects on the properties of the liquid-crystalline polyester. This results in a highly sensitive liquid-crystalline polyester for optical data storage. Infrared dyes which are preferably bonded in liquid-crystalline polyester are croconium, squarilium, azo, and azamethine dyes.
Infrared-sensitive liquid-crystalline polyesters suitable for use in optical data storage, processes for the preparation of same, and an apparatus containing an infrared-sensitive liquid-crystalline polyester
申请人:Akzo Nobel N.V.
公开号:EP0615234A2
公开(公告)日:1994-09-14
Disclosed are liquid-crystalline and infrared-sensitive liquid-crystalline polyesters for optical data storage, processes for the preparation of the same, and an apparatus comprising an infrared-sensitive liquid-crystalline polyester. Owing to covalently bonded dye the liquid crystalline polyester is infrared sensitive and high concentrations of dye are obtainable, without having detrimental effects on the properties of the liquid-crystalline polyester. This results in a highly sensitive liquid-crystalline polyester for optical data storage. Infrared dyes which are preferably bonded in liquid-crystalline polyester are croconium, squarilium, azo, and azamethine dyes.
Hair dyeing composition on the basis of an oxidation dyestuff precursor reacting with peroxide, comprising at least one developing and/or coupling substance selected from the group
a) 3-chloro-p-aminophenol and/or 2-chloro-p-aminophenol and
b) 3-(N-methyl-N-hydroxyethyl amino)-phenol, 3-morpholinophenol, 3-(N-hydroxyethyl amino)-phenol and/or 3-(N-hydroxypropyl amino)-phenol, and
c) o-aminophenol and/or 4-chloro-2-aminophenol.
基于与过氧化物反应的氧化染料前体的染发组合物,包含至少一种选自以下组别的显影和/或偶联物质
a) 3-氯对氨基苯酚和/或 2-氯对氨基苯酚和
b)3-(N-甲基-N-羟乙基氨基)-苯酚、3-吗啉基苯酚、3-(N-羟乙基氨基)-苯酚和/或 3-(N-羟丙基氨基)-苯酚,以及
c) 邻氨基苯酚和/或 4-氯-2-氨基苯酚。
ELECTRO-OPTIC POLYMER
申请人:National Institute of Information and
Communications Technology
公开号:EP3480224A1
公开(公告)日:2019-05-08
An object of the present invention is to provide a novel electro-optic polymer. Another object of the present invention is to provide a novel electro-optic polymer with a low alicyclic methacrylate monomer content. The polymer according to the present invention is a polymer comprising (a) a base polymer having a reactive group (A), (b) an electro-optic molecule having a plurality of reactive groups (B), and a bond (C) formed by reaction of the reactive group (A) with the plurality of reactive groups (B), the bond (C) being at least one type of bond selected from the group consisting of a (thio) ester bond, a (thio) urethane bond, a (thio) urea bond and a (thio)amide bond.