Abstract:
PROBLEM TO BE SOLVED: To provide a material for simply producing an organic effective, colorants having no tendency to cause swelling in an organic solvent and aqueous one at a low cost. SOLUTION: This core-shell particle can form a two-phase system. The shell material is filmable. The core is essentially stable in shape under shell- filming conditions, only sparingly causes swelling due to the shell material even if swelling occurs and has monodisperse size distribution. There is difference in index of refraction between the core material and the shell one.
Abstract:
PROBLEM TO BE SOLVED: To provide an optical display device based upon an inexpensive, easily obtainable organic material. SOLUTION: The optical display device has a layer comprising a deformable material (matrix) and discrete polymer particles which are distributed in the matrix by forming a predetermined spatial lattice structure. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve a method for catalytically manufacturing a copolymer consisting of carbon monoxide and a 2-20C olefinically unsaturated compound in an aqueous medium by using a metal catalyst system. SOLUTION: In order to obtain a copolymer consisting of carbon monoxide and a 2-20C olefinically unsaturated compound, the copolymerization of carbon monoxide and the olefinically unsaturated compound is carried out in an aqueous medium in the presence of (a1) a metal complex of the general formula (I) (wherein, the substituents and the factors are shown in the specification), (b) a dispersant, and (c) optionally, an organic hydroxy compound. The copolymerization is carried out in the presence of a water-soluble high molecular host compound having hydrophobic hollow sections and hydrophilic outer coats. COPYRIGHT: (C)2003,JPO
Abstract:
In order to prepare acrylate and/or methacrylate polymers containing lateral carbazolyl groups, polymers of acrylyl chloride and/or methacrylyl chloride are reacted in solution in a polymer-analogous reaction with alcoholates of N-( omega -hydroxyalkyl)carbazoles. The poly(meth)acrylates prepared in this way have good photoconductor properties and are advantageously suitable for use in electrophotographic recording elements.
Abstract:
Methacrylate (co)polymers containing carbazolyl side groups contain or are composed of repeating units of the general formula (I) (I) where m is an integer of from 3 to 11. The novel methacrylate (co)polymers containing carbazolyl side groups can advantageously be used as photoconductors in photoconductive layers, in particular of electrophotographic recording elements.
Abstract:
A photochromic system contains an oxidizable leuco dye and a photochemically activated initiator which converts the leuco dye to the dye, the initiator being a phenanthroimidazole derivative. The photochromic system is useful for the production of photochromic layers for photoresists and printing plates.
Abstract:
A photochromic system contains an oxidizable leuco dye and a photochemically activated initiator which converts the leuco dye to the dye, the initiator being a phenanthroimidazole derivative. The photochromic system is useful for the production of photochromic layers for photoresists and printing plates.
Abstract:
An electrophotographic recording material contains, as charge carrier-transporting compounds in the photoconductor layer, a mixture of one or more compounds of the formula (I) and one or more compounds of the formula (II) in a ratio of from 9:1 to 0.6:1, preferably from 2.3:1 to 0.8:1. In the formulae, R1 and R2 independently of one another are each alkyl, allyl, phenylalkyl or unsubstituted or substituted phenyl, R3 and R4 independently of one another are each hydrogen, alkyl, alkoxy or halogen, and R6, R7, R8 and R9 independently of one another are each alkyl, phenylalkyl or cyclohexyl. When the mixture of (I) and (II) is present in an appropriate concentration, the recording materials are highly photosensitive, although the problems usually encounted in the case of high concentrations of charge carrier-transporting compounds do not arise.
Abstract:
In the production of resist patterns by applying a radiation-sensitive, positive-working resist layer to a substrate, imagewise irradiation of the resist layer with actinic radiation and removal of the irradiated portions of the layer to develop the resist pattern, use is made of a radiation-sensitive resist layer based, in particular, on soluble poly(diacetylenes) containing sensitisers which can be activiated by the actinic radiation and which, after their activation, induce or accelerate the molecular decomposition of the poly(diacetylenes). The invention also relates to dry-film resists with a temporary, dimensionally stable layer base, a radiation-sensitive resist layer which is applied thereto and is based, preferably, on soluble poly(diacetylenes), and, optionally, to a top layer on the radiation-sensitive resist layer; the radiation-sensitive resist layer contains sensitisers which can be activated by actinic radiation and which, after their activation, induce or accelerate the molecular decomposition of the poly(diacetylenes).