Abstract:
PROBLEM TO BE SOLVED: To provide a curable resin composition for coating optical fiber, having both excellent jelly resistance and hot water resistance rated by dimensional change on immersion in mineral oil and by water resistance rating method both properly reflecting both the jelly resistance and water resistance of optical fiber. SOLUTION: This curable resin composition for coating optical fiber comprises (1) 50-70 wt.% of a urethane (meth)acrylate prepared from a polyol compound, a polyisocyanate compound and a hydroxy group-containing (meth) acrylate compound, (2) a reactive diluent copolymerizable with the component 1 and (3) a polymerization initiator. The other objective cured product of the above resin composition is such that when immersed in a mineral oil, the dimensional change at 25 deg.C after one week is
Abstract:
PROBLEM TO BE SOLVED: To provide a resin film for controlling alignment property of liquid crystal molecules and producing a liquid crystal display element having low residual voltage characteristics, and to provide an alignment treatment method of the liquid crystal molecules using the resin film. SOLUTION: The resin film formed in contact with a liquid crystal alignment layer used for the liquid crystal display element and having
Abstract:
PROBLEM TO BE SOLVED: To obtain a liquid crystal orienting agent, capable of preparing a liquid crystal display element having a high voltage retention ratio and an ultralow residual DC voltage and useful for word processors, etc., by including a specific polymer and a specified compound therein. SOLUTION: This liquid crystal orienting agent comprises (A) one or more polymers selected from a polyamic acid such as a compound represented by the formula (R is a tetravalent organic group; R is a bivalent organic group) and its imidated polymer and (B) one or more compounds selected from a polymer having 14 permittivity such as polyacrylic acid and a monomer constituting the polymer. The compounding ratio of the components A to B is preferably 15-50 pts.wt. component B based on 100 pts.wt. component A.
Abstract:
PROBLEM TO BE SOLVED: To obtain a liquid crystal aligning agent capable of providing a liquid crystal displaying element in which the time required for after-image to be erased after releasing application of voltage is short by compounding a polymer selected from a polyamic acid and its imidated polymer with a specific additive. SOLUTION: This liquid crystal aligning agent comprises (A) a polymer selected from a polyamic acid and its imidated polymer and an additive selected from (B) an isocyanate compound of formula I [R' is mono- or tetrafunctional organic group; (n) is 1-4] (preferably phenylisocyanate) and (C) a diamine compound of formula II (R is a bifunctional organic group) (preferably p- phenylenediamine). 1,2,3,4-Cyclobutanetetracarboxylic dianhydride, etc., is preferably used as tetracarboxylic dianhydride constituting a polyamic acid of the component A and 4,4'-diaminodiphenylmethane, etc., is preferably used as the diamine compound. The liquid crystal aligning agent is preferably obtained by compounding 100 pts.wt. component A with 5-50 pts.wt. component B and 20-40 pts.wt. component C.
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent showing preferable perpendicular aligning property and printing property and a short erasing time of afterimages and suitable for an MVA liquid crystal display device. SOLUTION: The liquid crystal aligning agent contains a polyamic acid produced from alicyclic tetracarboxylic acid dianhydrides and diamines having specified structures.
Abstract:
PROBLEM TO BE SOLVED: To easily regenerate a panel substrate, to eliminate damages on TFT elements or color filters and to prevent a decrease in a voltage holding rate by using an aq. soln. containing an alkali compd. and a nonionic surfactant. SOLUTION: A removing liquid of a liquid crystal alignment film being an aq. soln. containing an alkali compd. and a nonionic surfactant is used. As for the alkali compd., either of inorg. alkali compds. or org. alkali compds. can be used. As for the inorg. alkali compds., lithium hydroxide, sodium hydroxide, potassium hydroxide or the like can be used. As for the org. alkali compds., tetramethylammonium hydroxide, 2-hydroxyethyl trimethylammonium hydroxide or the like can be used. As for the nonionic surfactant, a polyoxyethylene compd. is preferable and especially polyoxyethylene allylether and polyoxyethylene alkylether are preferable.
Abstract:
PROBLEM TO BE SOLVED: To obtain a liquid crystal orientation agent that contains a specific polymer and tertiary alcohol and renders sure orientation to liquid crystal molecules and can provide excellent liquid crystal display devices by rubbing treatment. SOLUTION: This liquid crystal orientation agent comprises a solution that contains (A) at least one polymer selected from polyamic acids obtained by reaction of a tetracarboxylic dianhydride (for example, butanetetracarboxylic dianhydride, etc.) with a diamine compound, and imidated polymers having a structure obtained by ring-opening dehydration of a polyamic acid, and (B) a tertiary alcohol selected from a group consisting of compounds of formulae I to V (X to X , X to X , and X to X are each monovalent hydrocarbon; X , X and X are each divalent hydrocarbon; (a), (b), (c), and (d) are each 0-3; total of X to X is 5 or more).
Abstract:
PROBLEM TO BE SOLVED: To provide a heavy-metal-free electrode active material capable of obtaining a battery excellent in cycle characteristics.SOLUTION: The electrode active material is composed of a polymer having a structure represented by a formula (1) below. (In Formula (1), R represents an organic group, X independently represents a halo group, a hydroxyl group, or an organic group, where n represents an integer of 0 to 2.)
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation curable resin composition for adhesive having excellent wet-heat resistance and liquid storage stability under a fluorescent lamp compared with conventional composition and provide an adhesive for optical disk containing the composition. SOLUTION: The radiation curable resin composition for adhesive use contains (A) 25-65 wt.% trifunctional (meth)acrylate, (B) 25-60 wt.% bisphenol-type epoxy (meth)acrylate having hydroxy group, (C) 1-45 wt.% di(meth)acrylate having a structural unit expressed by the general formula; CH 2 C(CH 3 )HO and other than the component B and (D) 0.01-15 wt.% photopolymerization initiator. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid curable resin composition for adhesives, which excels in adhesiveness and is resistant to yellowing. SOLUTION: The liquid curable resin composition for adhesives contains the following components (A)-(D): (A), a urethane (meth)acrylate obtained from at least one diol component selected from the group consisting of polypropylene glycol, polybutylene glycol, a copolymer of 1,2-butylene oxide and ethylene oxide and a copolymer of propylene oxide and ethylene oxide, a diisocyanate, and a hydroxy group-containing (meth)acrylate; (B), a radical-polymerizable compound; (C), a compound having a phosphite group and a phenolic hydroxy group; and (D), a phenolic compound having a partial structure represented by formula (1) (wherein R 1 indicates a 1-8C hydrocarbon group). COPYRIGHT: (C)2006,JPO&NCIPI