Abstract: Disclosed is a method for producing an electrochromic device in which to provide an opening in the surface of each of the two electrically conductive substrates of the cell, not in the end surface of the opposed substrates, to insert into one of the openings an elastically deformable sealing member; to fill the inside of the cell by vacuum-injecting an electrolyte or the precursor thereof through the other opening which remains open; to push the sealing member up to the opening for injecting the electrolyte or the precursor so as to dose this opening as well; and to bond the sealing member extending through the two openings to each of the substrates with an adhesive.

Abstract: Disclosed is a method for producing an electrochromic device providing an opening in the surface of each of the two electrically conductive substrates of the cell, not in the end surface of the opposed substrates, to fill the inside of the hollow cell with an electrolyte or the precursor thereof by injecting through the injection port, to seal temporarily the injection port with a material which can be deformably inserted into the port and to seal secondarily the temporarily sealed port by applying thereon only an adhesive or a sheet-like member over the adhesive.

Abstract: A method for producing an electrochromic device in which to provide in the end surface of the cell an opening having a passage formed by a butyl rubber and extending not perpendicular to the end surface, to injecting an electrolyte through the opening, to seal or closing the opening by pressing deformably the outer peripheral wall of the passage so as to abut against the inner peripheral wall and to seal secondarily the sealed portion with an adhesive.

Abstract: An electrode for an electrochromic device is disclosed having an electrically conductive substrate and a plurality of capacitive members arranged on the substrate, each of the capacitive members containing fine particles bound together with a binder, the fine particles having electric capacity of not less than 1 farad/g, the binder in the capacitive member having degree of swelling of not higher than 20 mass % when measured after the binder in the capacitive member is immersed in .gamma.-butyrolactone at 25.degree. C. for 24 hours. Also disclosed is an electrochromic device having the above electrode as a counterelectrode, an electrochromic electrode, and an electrolyte interposed therebetween.

Abstract: A rewritable or repeatedly employable recording medium having a base and a recording layer film provided on said base, characterized in that said recording layer film is formed by a thermotropic cholesteric liquid crystal polyester.

Abstract: A nonlinear optical material obtained by blending 50-99% by weigth of a polypeptide and 1-50% by weight of a compound exerting a nonlinear optical response has a very large nonlinear optical constant, exterts a high and stable SHG activity and easily undergoes phase matching.

Abstract: Provided is a wholly aromatic polyester superior in melt processability and tenacity which consists essentially of the following structural units (A), (B) and (C) and wherein 0.2 to 40 mole % of the total of said units are of ortho configuration; ##STR1## where Ar.sup.1 and Ar.sup.2 each represent a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, the hydrogen atoms of said aromatic hydrocarbon group may be substituted with a halogen atom, an alkyl or alkoxy group having 1 to 4 carbon atoms, or phenyl; Z is ##STR2## --O--, or --SO.sub.2 --; m is 0 or 1, at least 60 mole % of Ar.sup.1 being constituted by a group selected from 1,4-phenylene, substituted 1,4-phenylenes, naphthyl and 4,4'-biphenyl.

Abstract: A rewritable or repeatedly employable recording medium having a base and a recording layer film provided on said base, characterized in that said recording layer film is formed by a thermotropic cholesteric liquid crystal polyester.

Abstract: A cholesteric liquid crystal polyester comprising the following structural units (A), (B) and (C): ##STR1## wherein Ar.sup.1 and Ar.sup.2 represent each independently a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, of which one or more hydrogen atoms may be substituted by one or more halogen atoms, alkyl or alkoxy groups having 1 to 4 carbon atoms, provided that at least 60 mol % of Ar.sup.1 in the polymer is constituted by at least one group selected from 1,4-phenyl group, 2,6-naphthyl group and 4,4'-biphenyl group.

Abstract: A cholesteric liquid crystal polyester consisting essentially of the following structural units (A), (B), (C) and (D): ##STR1##

Abstract: A process for producing a cholesteric liquid crystal polyester film or sheet possessing an ordered planar texture (monodomain structure), which process comprises providing a cholesteric liquid crystal polyester in which 1 to 10 mol % of constituent monomer units are optically active, allowing the cholesteric liquid crystal polyester to be formed in the temperature range of 150.degree. to 350.degree. into a film or sheet having a thickness not larger than 100 .mu.m, and then cooling the film or sheet rapidly.

Abstract: A cholesteric liquid crystal polyester consisting essentially of structural units represented by the following formulae (A), (B) and (C): ##STR1## which is optically active; and ##STR2## wherein X is hydrogen, halogen, or alkyl having not more than four carbon atoms.

Abstract: A process for preparing a cholesteric liquid crystal copolyester consisting essentially of structural units represented by the following formula (A), (B), (C) and (D): ##STR1## which is optically active characterized in that a polyethylene terephthalate oligomer having a (B)/(A) mole ratio in the range of 1.1 to 1.8, p-acetoxybenzoic acid and 3-methyladipic acid are reacted to prepare the final cholesteric liquid crystal copolyester having an inherent viscosity of at least 0.4 dl/g.

Abstract: A cholesteric liquid crystal polyester consisting essentially of structural units represented by the following formulae (A), (B), (C), (D) and (E): ##STR1## the units (A) and (B) being present each in a proportion of 5 to 50 mol %, the unit (C) present in a proportion of 20 to 80 mol %, and the units (D) and (E) present each in a proportion of 1 to 40 mol %.