Abstract:
PROBLEM TO BE SOLVED: To provide a composition for a high heat-resistant coating, having excellent workability, by imparting solubility in an organic solvent to a polymer which has an aromatic ring originally insoluble in the organic solvent in the skeleton, which has high rigidity and is excellent in heat resistance (thermal decomposition temperature, thermal expansion coefficient, glass transition temperature, etc.), mechanical strength (modulus of elasticity, hardness of coating, etc.), chemical resistance, water resistance, and so on, and to provide a high heat-resistant film, and a method for producing the same. SOLUTION: The composition for a heat-resistant coating includes an aromatic resin which is formed by introducing a sulfonic acid group and/or a salt of a sulfonic acid group, or a sulfinic acid group and/or a salt of a sulfinic acid group as a substituent to one or more aromatic resins which is/are selected from aromatic polyethers and aromatic polysulfones. Contents of the sulfonic acid group and/or the sulfinic acid group is 1-30 wt.% with respect to the weight of the resin as a whole, and the resin is soluble in organic solvents. The composition for the high heat-resistant coating including the resin is thermally stable at temperatures up to about 280°C, and when the temperature is raised so as to exceed about 300°C, occurrence of SO 2 is recognized and weight reduction is observed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a biocompatible cell culture membrane which is produced by using a deoxyribonucleic acid as a natural resource. SOLUTION: The cell culture membrane includes a deoxyribonucleic acid ionically-crosslinked by an organic polyvalent cation. There is disclosed a cell culture membrane in which the organic polyvalent cation is preferably an organic divalent or more valent cation. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a composition for an alignment layer, which is applicable to a plastics support material and forms the alignment layer superior in adhesion to an optical function layer (liquid crystal layer) and which is used to cause a liquid crystalline compound in the liquid crystal layer to be easily aligned by its alignment control force by rubbing treatment of the surface of the alignment layer and which forms the alignment layer being superior in adhesion to a support material and in durability and to provide a method of manufacturing an optical element using the same. SOLUTION: The composition for the alignment layer is used for manufacturing an optical element comprising a plastics support material 1, an alignment layer 2, and a one or more-layered optical function layer 3 consisting of the liquid crystalline compound and contains at least a nonionic water-soluble etherificated polysaccharides (A) and water and/or a lower alcoholic solvent (B). Hydroxyethyl cellulose, hydroxypropylmethyl cellulose, or methyl cellulose may be used as the nonionic water-soluble etherificated polysaccharides. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a porous material by using a deoxyribonucleic acid available as a natural resource. SOLUTION: The porous material is composed of a deoxyribonucleic acid and has fine pores having a diameter of 1 nm to 100 μm. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cell culture membrane having bioaffinity utilizing a deoxyribonucleic acid as a natural resource. SOLUTION: The cell culture membrane having a deoxyribonucleic acid ionically crosslinked with calcium ions or magnesium ions is provided. Preferably, this cell culture membrane has a deoxyribonucleic acid ionically crosslinked with magnesium ions. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PURPOSE:To obtain a cell culture substrate capable of retaining its adsorption performance for cells as well as cultured cell performance, by providing the surface of a substrate with a polymeric film through electrolytic polymerization to ensure cells to be stably adsorbed onto the substrate surface and cultured. CONSTITUTION:The surface of a glass substrate is first provided with an electrically conductive transparent film such as of ITO or tin oxide by sputtering technique, and an electrolytically polymerized film of polypyrrole is then grown on the transparent film by making a constant current electrolysis 2.1mA/cm in current density for an aqueous solution prepared by adding 0.1M of pyrrole and 0.05M of sodium chloride as supporting electrolyte. The resultant substrate is then dipped in a 70% aqueous ethanol solution to carry out through washing with sterilization, and dried in a clean bench, thus obtaining the objective cell culture substrate having the above-mentioned advantages.
Abstract:
PURPOSE:To obtain an information recording medium capable of recording or reproducing optical information, by providing a recording layer composed of dithiolate nikel complex having alkyl ammonium as a counter ion. CONSTITUTION:A recording layer 2 composed of dithiolate nikel complex having alkyl ammonium expressed by the formula (1) as a counter ion, is provided. In the formula (1), R1, R2, R3 and R4 of alkyl ammonium, which becomes counter cathions, are composed of an alkyl group having 1-30 carbon atoms. and, at least, one of R1-R4 is preferably a long chain alkyl having 10-22 carbon atoms. from a stand point wherein it becomes easy to be dissolved in solvent for coating. Besides, X1 and X2 in a counter anion complex are a straight chained or branched alkyl group having 5-30 carbon atoms. or hydrogen bonded to position 4, and X3 and X4 are hydrogen, alcoxy group having 1-12 carbon atoms., fluorine, chlorine, or bromine bonded to position 3 or 4.
Abstract:
PURPOSE:To improve resistance to dry etching by using a polymer having acetal structure at the specific side chain. CONSTITUTION:Titled resist is formed of the polymer which consists of the constituting unit having acetal structure at the side chain expressed by the formula I (in which R is a hydrogen atom or alkyl group, R is the residual hydrocarbon group of aldehyde or ketone, m is >=1 integer indicating the length of methylene chain, n is 1 or 2) and has 10,000-1,000,000molwt. or the copolymer which contains such constituting unit and has the same molwt. or a mixture composed of such polymer and other polymers. R includes -CH2-, -C(CH3)2-, -CO-, -CH(C6H5R)-, etc. and contains preferably an arom. group in order to have resistance to dry etching. The resist is sensitive to ionizing radiations such as electron rays, soft X-rays and ion beam.