摘要:
An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers.
摘要:
The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same.In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 μm to 0.07 μm; a film thickness of the silver halide emulsion layer is 4 μm to 9 μm; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.
摘要:
A silver halide color photoqraphic light-sensitive material having an excellent graininess, sharpness and color reproducibility, particularly of green colors including yellowish qreen and bluish qreen is disclosed. Among silver halide emulsion layers, the blue-sensitive layer is located furthest from a support and the outside thereof, has a non-light-sensitive layer. And the optical specifications of these two layers are as specified in the claims.
摘要:
The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 μm to 0.07 μm; a film thickness of the silver halide emulsion layer is 4 μm to 9 μm; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.
摘要:
The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method. The process for preparing a polyolefin according to the invention is intended to prepare a polyolefin having excellent impact resistance and transparency, and this process comprises homopolymerizing an α-olefin of 3 to 8 carbon atoms or copolymerizing an olefin of 3 to 8 carbon atoms and another α-olefin in the presence of an olefin polymerization catalyst containing the above-mentioned metallocene compound.
摘要:
A silver halide color photographic light-sensitive material comprises a support and at least one light-sensitive layer. This layer has a plurality of silver halide emulsion layers substantially identical in color sensitivity, but differing in speed. The light-sensitive layer is comprised substantially of monodispersed silver halide emulsions A and B, each containing silver halide particles of the core/shell-type. The silver halide particle sizes of emulsions B and A have a ratio, when multiplied by 100, of less than 70 and the silver halide particles of emulsion B have a silver iodide content in their core that is not less than 5 mole % smaller than that of the core of the silver halide particles of emulsion A.
摘要:
[Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties.[Construction] A catalyst for olefin polymerization comprising (A) a transition metal compound represented by the following general formula (1); and (B) at least one compound selected from the group consisting of (B-1) organometallic compound, (B-2) organoaluminum oxy compound and (B-3) compounds capable of reacting with the transition metal compound (A) to form an ion pair: (M is a transition metal atom selected from Groups 4 to 6 of the periodic table; the two of R1 to R4, which are adjacent to each other, are combined to form a ring with the carbon atoms to which the two are bonded; groups of not forming a ring, R5 to R8, and X are each an atom or a group selected from a hydrogen atom, a halogen atom, a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing group, and a nitrogen-containing group; Q is —O—, —S—, —NRa—, or —PRb— (Ra and Rb are each a hydrogen atom or a hydrocarbon group); Y is a neutral ligand having an electron-donating group; m is a number satisfying the valence of M; and n is an integer of 0 to 3.).
摘要翻译:[任务]提供具有优异的烯烃聚合性能并能够生产具有优异性能的聚烯烃的烯烃聚合催化剂。 [构造]烯烃聚合用催化剂,其包含(A)由以下通式(1)表示的过渡金属化合物; 和(B)选自(B-1)有机金属化合物,(B-2)有机铝氧化合物和能够与过渡金属化合物(A)反应形成的(B-3)化合物的至少一种化合物,以形成 离子对:(M是选自元素周期表第4至6族的过渡金属原子;相互相邻的R 1至R 4中的两个被结合形成具有碳原子的环, 键合;不形成环的基团,R 5〜R 8和X各自为选自氢原子,卤素原子,烃基,卤代烃基,含氧基和 含氮基团; Q是-O - , - S - , - NR a - 或-PR b-(R a和R b各自是氢原子或烃基); Y是具有给电子基团的中性配体; m为满足M的化合价的数; n为0〜3的整数。
摘要:
A thermal transfer image receiving sheet containing a substrate having thereon a thermal insulation layer, an intermediate layer and an image receiving layer in that order, wherein the thermal insulation layer, the image receiving layer and the intermediate layer each is formed by an aqueous coating method.
摘要:
The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method. The process for preparing a polyolefin according to the invention is intended to prepare a polyolefin having excellent impact resistance and transparency, and this process comprises homopolymerizing an α-olefin of 3 to 8 carbon-atoms or copolymerizing an olefin of 3 to 8 carbon atoms and another α-olefin in the presence of an olefin polymerization catalyst containing the above-mentioned metallocene compound.
摘要:
A thermal transfer image receiving sheet comprising a heat insulating layer and a layer adjacent to the heat insulating layer on a substrate, wherein the heat insulating layer is provided between the layer and the substrate, the heat insulating layer contains hollow particles in an amount of at least 65 percent by mass, and the heat insulating layer and the layer are formed by simultaneous multi-layer coating.