Abstract: An organic light-emitting device in which at least one organic layer including a light-emitting layer is sandwiched between an anode and a cathode and a phosphorescent compound in the light-emitting layer emits light.

Abstract: Disclosed is a light emitting polymer material comprising a (co)polymer comprising a structural unit derived from an iridium complex represented by the following formula (1): wherein R1 and R2 each independently represents an atom or a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, an amino group which may be substituted with an alkyl group of 1 to 10 carbon atoms, an alkoxy group of 1 to 10 carbon atoms, and a silyl group; X1 represents a polymerizable functional group-containing substituent; and A1 to A3 each independently represents a divalent substituent having a cyclic structure.

Abstract: An organic electroluminescence device including one layer or two or more layers of organic layer sandwiched between an anode and a cathode. At least one of the organic layers includes a phosphorescent compound and a polymer. The polymer has a structural unit derived from a monomer represented by formula (1) as defined herein, and a structural unit derived from a monomer having heterocycle(s) containing two or more heteroatoms.

Abstract: Disclosed is an organic electroluminescence device comprising one layer or two or more layers of organic layer sandwiched between an anode and a cathode wherein: at least one of the organic layers comprises a phosphorescent compound and a polymer; the polymer comprises a structural unit derived from a monomer represented by the following formula (1) and a structural unit derived from a monomer having heterocycle(s) containing two or more heteroatoms.

Abstract: Disclosed is a light emitting polymer material comprising a (co)polymer comprising a structural unit derived from an iridium complex represented by the following formula (1): wherein R1 and R2 each independently represents an atom or a substituent selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, an amino group which may be substituted with an alkyl group of 1 to 10 carbon atoms, an alkoxy group of 1 to 10 carbon atoms, and a silyl group; X1 represents a polymerizable functional group-containing substituent; and A1 to A3 each independently represents a divalent substituent having a cyclic structure.

Abstract: An organic light-emitting device in which at least one organic layer including a light-emitting layer is sandwiched between an anode and a cathode and a phosphorescent compound in the light-emitting layer emits light.

Abstract: The reflecting member for a surface light source according to the present invention is characterized by forming a white coating film on the surface of a molded metal part having a prescribed shape. According to the present invention, a reflecting member for a surface light source wherein a white coating film having sufficient reflecting properties is formed on a metal part even if a metal part having a curved part of a small curvature radius can be provided.

Abstract: An object of the present invention is to provide a seed coating composition capable of enhancing a germination rate of seeds even in environment where seeds are liable to be dried, a coated seed having been coated with the composition, and a seed coating method. The seed coating composition of the present invention comprises a water absorbing resin and a granulating material, said water absorbing resin being obtained by copolymerizing a monomer mixture containing N-vinylcarboxylic acid amide represented by the following formula (1) and a crosslinking monomer; (1) wherein R1 is a hydrogen atom, a methyl group or a phenyl group, R2 is a hydrogen atom, an alkyl group of 1 to 4 carbon atoms or a phenyl group, and R1 and R2 may be the same or different.

Abstract: Photosensitive compositions prepared without use of a chromium compound. The compositions exhibit high resolution and satisfactory sensitivity, and do not cause environmental pollution. The photosensitive compositions contain a water-soluble azide compound which serves as a photocrosslinking agent and poly(N-vinylacetamide) that is photocrosslinkable in the presence of the water-soluble azide compound.

Abstract: Photosensitive compositions prepared without use of a chromium compound. The compositions exhibit high resolution and satisfactory sensitivity, and do not cause environmental pollution. The photosensitive compositions contain a water-soluble azide compound which serves as a photocrosslinking agent and poly(N-vinylacetamide) that is photocrosslinkable in the presence of the water-soluble azide compound.

Abstract: Photosensitive compositions prepared without use of a chromium compound. The compositions exhibit high resolution and satisfactory sensitivity, and do not cause environmental pollution. The photosensitive compositions contain a water-soluble azide compound which serves as a photocrosslinking agent and poly(N-vinylacetamide) that is photocrosslinkable in the presence of the water-soluble azide compound.

Abstract: A freeze-preventing material comprises cement, salt, and water-absorbing resins. The freeze-preventing material is scattered on the pavement surface in the form of slurry to prevent the pavement surface from freezing. Thereby a freeze-preventing effect is maintained for a long period of time owing to the water-absorbing resins which absorb and retain the salt in large amounts. The anti-freezing effect can be restored by spraying the pavement with the salt again.

Abstract: A high-flow concrete additive comprises a polymer of 10-100 wt % of an N-vinylacetamide, 0-50 wt % of a compound CH.sub.2 .dbd.CR.sup.3 X.sup.1 R.sup.4 SO.sub.3 X.sup.2 wherein R.sup.3 is hydrogen or methyl, R.sup.4 is alkylene of 1 to 4 carbon atoms, X.sup.1 is CONH or COO, and X.sup.2 is hydrogen, an alkali metal, ammonium salt or organic ammonium salt, and 0-40 wt % of a compound CH.sub.2 .dbd.CR.sup.5 X.sup.3 wherein R.sup.5 is hydrogen or methyl and X.sup.3 is CN, COOR.sup.6, CONH.sub.2, CONHR.sup.7, CONR.sup.8 R.sup.9, COR.sup.10, OCOR.sup.11 or OR.sup.12, in which R.sup.6 is hydrogen, an alkali metal, ammonium salt, organic ammonium salt or alkyl group of 1 to 4 carbon atoms, R.sup.7, R.sup.8 and R.sup.9 are alkyl groups of 1 to 4 carbon atoms, and R.sup.10, R.sup.11 and R.sup.12 are alkyl groups of 1 to 4 carbon atoms.

Abstract: A fine particulate cross-linked N-vinylamide resin having an average particle size of not more than 10 .mu.m comprising a compound (I) and a compound (II) cross-linked by a cross-linking agent: ##STR1## wherein, R.sup.1 to R.sup..ident. may be the same or different and represent a hydrogen atom, methyl group, or ethyl group, X is a C.sub.2 or C.sub.3 alkylene group, and n is an integer of 2 to 30 and the weight ratio of (I):(II) is 70 to 99.9:30 to 0.1, and the microgel composed thereof.

Abstract: A liquid-absorbing material composition containing a crosslinking agent (component A), N-vinylcarboxamide copolymer (component B) having a functional group capable of crosslinking with the component A, water (component C), a water-soluble organic solvent (component D) and a plasticizer (component E), a molded liquid-absorbing material prepared from the composition, a method of manufacturing the molded liquid-absorbing material, and uses thereof are provided. The liquid-absorbing material composition has a high flowability, and gives a uniform continuous layer so that it can be directly molded readily into film- or sheet-shaped molded liquid-absorbing material without requiring secondary processing as in the case of conventional water-absorbing polymer.

Abstract: A seedling culture mat comprising a mat which comprises a fibrous substrate or a water-soluble film or paper, a nonionic water-absorbing polymer in a film, tape, fiber or powder form which is anchored to the mat and seeds which are applied on the mat.

Abstract: A technique to synthesize complex oxide ceramic powders which offers advantages of both the coprecipitation and sol-gel routes while doing away with the disadvantages is disclosed. Namely, the ability to achieve chemical homogeneity and crystallite size on the namometer length scale at a nonprohibitive cost is provided by the disclosed method.

Abstract: A technique to synthesize complex oxide ceramic powders which offers advantages of both the coprecipitation and sol-gel routes while doing away with the disadvantages is disclosed. Namely, the ability to achieve chemical homogeneity and crystallite size on the namometer length scale at a nonprohibitive cost is provided by the disclosed method.

Abstract: A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom or methyl group; X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, a C.sub.1 -C.sub.

Abstract: A fine particulate crosslinked type N-vinylcarboxylic acid amide resin having an average particle size of 10 .mu.m or less comprising backbone chains of a homopolymer or copolymer comprising repeating units (A) or (A) and (B) of the formulae: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom or methyl group; X represents a group --COOY, wherein Y represents a hydrogen atom, an alkali metal, a C.sub.1 -C.sub.