Abstract: An olefin wax (A) is (i) a copolymer (A1) obtained by copolymerizing ethylene and at least one diene or a copolymer (A2) obtained by copolymerizing ethylene, at least one olefin selected from ?-olefins of 3 to 12 carbon atoms and at least one diene; wherein (ii) the content of unsaturated groups per one molecule is in the range of 0.5 to 3.0 groups; (iii) the density is in the range of 870 to 980 kg/m3; (iv) the melting point is in the range of 70 to 130° C.; (v) the number-average molecular weight is in the range of 400 to 5,000; and (vi) the ratio (Mw/Mn) of the weight-average molecular weight to the number-average molecular weight is not more than 4.0. A silicone-modified olefin wax can be obtained by reacting hydrogen silicone with the olefin wax (A). Cosmetics contain the silicone-modified olefin wax.

Abstract: An additive for a printing ink comprising a wax of either an ethylene homopolymer or ethylene.C3-20 ?-olefin copolymer each has an intrinsic viscosity, weight-average molecular weight/number-average molecular weight ratio, z-average molecular weight/weight-average molecular weight ratio, density, penetration hardness, and acid value in specific ranges; a solvent dispersion obtained by dispersing the wax; and a printing ink containing the wax.

Abstract: An olefin wax (A) is (i) a copolymer (A1) obtained by copolymerizing ethylene and at least one diene or a copolymer (A2) obtained by copolymerizing ethylene, at least one olefin selected from ?-olefins of 3 to 12 carbon atoms and at least one diene; wherein (ii) the content of unsaturated groups per one molecule is in the range of 0.5 to 3.0 groups; (iii) the density is in the range of 870 to 980 kg/m3; (iv) the melting point is in the range of 70 to 130° C.; (v) the number-average molecular weight is in the range of 400 to 5,000; and (vi) the ratio (Mw/Mn) of the weight-average molecular weight to the number-average molecular weight is not more than 4.0. A silicone-modified olefin wax can be obtained by reacting hydrogen silicone with the olefin wax (A). Cosmetics contain the silicone-modified olefin wax.

Abstract: A thermoplastic resin composition of the present invention comprises a thermoplastic resin (A), and a polyolefin wax (B) having a number-average molecular weight (Mn), as measured by gel permeation chromatography (GPC), in the range of 400 to 5,000, a melting point, as measured by a differential scanning calorimetry (DSC), in the range of 65 to 130° C., and a density, as measured by a density gradient tube process, in the range of 850 to 980 kg/m3, and satisfying the relationship represented by the following formula (I) of the crystallization temperature (Tc(° C.), measured at a temperature lowering rate of 2° C./min.), as measured by a differential scanning calorimetry (DSC), and the density (D (kg/m3)): 0.501×D?366?Tc??(I). The thermoplastic resin composition can reduce the load applied on the screw of an extruder upon plasticization, and has good extrusion productivity. A molded product of the present invention is obtained by molding the thermoplastic resin composition.

Abstract: [PROBLEMS] The present invention provides a modifier for an electrophotographic toner which is excellent in adhesiveness with various inks, coating materials, aluminum or other metals, or the like, a release agent of the electrophotographic toner, and a modified electrophotographic toner. [MEANS FOR SOLVING PROBLEMS] A release agent for an electrophotographic toner, which comprises an epoxidized low-molecular-weight ethylene polymer (B) which contains an epoxy group in the polymer chain of a low-molecular-weight ethylene polymer (A), and has (i) a density of 870 to 1,050 kg/m3, (ii) a melting point of 70 to 130° C., and (iii) a number-average molecular weight (Mn) of 400 to 5,000, and a modified low-molecular-weight ethylene compound (C) obtained from the epoxidized low-molecular-weight ethylene polymer (B) and a carboxylic acid compound; and an electrophotographic toner for developing an electrostatic charge image, which comprises the modified low-molecular-weight ethylene compound (C).

Abstract: An additive for a printing ink comprising a wax of either an ethylene homopolymer or ethylene•C3-20 ?-olefin copolymer each has an intrinsic viscosity, weight-average molecular weight/number-average molecular weight ratio, z-average molecular weight/weight-average molecular weight ratio, density, penetration hardness, and acid value in specific ranges; a solvent dispersion obtained by dispersing the wax; and a printing ink containing the wax.

Abstract: A thermal transfer recording medium comprising a thermally-melting layer comprising a polyolefin wax defined in the following items (i) to (iv): (i) the wax comprises an ethylene homopolymer or a copolymer made from ethylene and an ?-olefin having 3 to 10 carbon atoms, (ii) the wax has a number-average molecular weight (Mn) of 400 to 3,000, the molecular weight being measured by gel permeation chromatography (GPC), (iii) the wax has a melting point of 60 to 120° C., the melting point being measured with a differential scanning calorimeter (DSC), and (iv) the softening point (Ts (° C.)) of the wax and the penetration (Y (dmm)) thereof satisfy a specific relationship expression. The thermal transfer recording medium can provide printed images having a superior sharpness (dot reproducibility) and an improved abrasion resistance at a low energy.

Abstract: An olefin wax (A) is (i) a copolymer (A1) obtained by copolymerizing ethylene and at least one diene or a copolymer (A2) obtained by copolymerizing ethylene, at least one olefin selected from ?-olefins of 3 to 12 carbon atoms and at least one diene; wherein (ii) the content of unsaturated groups per one molecule is in the range of 0.5 to 3.0 groups; (iii) the density is in the range of 870 to 980 kg/m3; (iv) the melting point is in the range of 70 to 130° C.; (v) the number-average molecular weight is in the range of 400 to 5,000; and (vi) the ratio (Mw/Mn) of the weight-average molecular weight to the number-average molecular weight is not more than 4.0. A silicone-modified olefin wax can be obtained by reacting hydrogen silicone with the olefin wax (A). Cosmetics contain the silicone-modified olefin wax.

Abstract: Disclosed is a polyethylene wax defined by the features (i) to (iv): (i) said polyethylene wax is an ethylene homopolymer or a copolymer of ethylene and an ?-olefin of 3 to 20 carbon atoms, (ii) a ratio (Mw/Mn) of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn), as measured by GPC, is in the range of 1.7 to 4.0, (iii) the softening point is not higher than 125° C., and (iv) the penetration hardness is not more than 15 dmm. Also disclosed are a lost wax composition for precision casting, which comprises the polyethylene wax, and a method for forming a model for precision casting, which uses the lost wax composition for precision casting.

Abstract: A polyolefin wax for a coating material which includes an ethylene (co)polymer having a number-average molecular weight within the range of from 400 to 5000 as measured by gel permeation chromatography. The polyolefin wax has a volume average particle diameter in the range of from 0.3 ?m to 20 ?m wherein the relation between a particle diameter a (?m), in which the weight ratio of the large particle diameter side in weight particle-size distribution is 10%, and a particle diameter b (?m), in which the weight ratio of the small particle diameter side in weight particle size distribution is 10%, satisfies the a/b?4 and the relation between the crystallization temperature Tc (° C.), measured at a cooling rate of 2° C./min) as measured by differential scanning calorimetry (DSC) and the density D (kg/m3) as measured by the density gradient tube method satisfies the equation 0.501×D?366?Tc.

Abstract: The additive (b) for a communication cable filler according to the present invention contains as a main component an ethylene/?-olefin copolymer (a) having a number-average molecular weight (Mn), measured by GPC, of 500 to 5,000 and having a crystallizing temperature (Tc (° C.), rate of temperature decrease: 2° C./min) measured by DSC and a density (D (kg/m3)) measured by a density gradient tube method, said Tc and D satisfy the following formula (1): 0.501×D(kg/m3)?366?Tc(° C.)??(1). The communication cable filler (c) according to the invention is prepared by blending (X) 40 to 90% by mass of polybutene (d) having a number-average molecular weight of 200 to 2,400, (Y) 1 to 50% by mass of an oil (e) and (Z) 1 to 15% by mass of the ethylene/?-olefin copolymer (a). The additive for a communication cable filler and the communication cable filler are excellent in the filling workability and the oil retention properties of a cable jelly.

Abstract: A polyolefin wax for a coating material which includes an ethylene (co)polymer having a number-average molecular weight within the range of from 400 to 5000 as measured by gel permeation chromatography. The polyolefin wax has a volume average particle diameter in the range of from 0.3 &mgr;m to 20 &mgr;m wherein the relation between a particle diameter a (&mgr;m), in which the weight ratio of the large particle diameter side in weight particle-size distribution is 10%, and a particle diameter b (&mgr;m), in which the weight ratio of the small particle diameter side in weight particle size distribution is 10%, satisfies the a/b≦4 and the relation between the crystallization temperature Tc (° C.), measured at a cooling rate of 2° C./min) as measured by differential scanning calorimetry (DSC) and the density D (kg/m3) as measured by the density gradient tube method satisfies the equation 0.501×D-366≧Tc.

Abstract: The additive (b) for a communication cable filler according to the present invention contains as a main component an ethylene/&agr;-olefin copolymer (a) having a number-average molecular weight (Mn), measured by GPC, of 500 to 5,000 and having a crystallizing temperature (Tc (° C.), rate of temperature decrease: 2° C.

Abstract: A heat-fixable developer for electrophotography comprising a binder resin (A), a colorant (B) and a releasing agent (C), to be used favorably for electrostatic toner, which developer exhibits no offset phenomenon and causes no staining on the carrier, on the photosensitive body and on the heating roller and is superior in the releasing easiness of the heating roller upon the heat-fixing, in the anti-blocking property and in the fixing performance, wherein the releasing agent (C) comprises at least one ethylene/aromatic vinyl compound copolymer selected from the group consisting of copolymer i) and copolymer ii), the copolymer i) being an ethylene/aromatic vinyl compound copolymer obtained by co-polymerizing ethylene and an aromatic vinyl compound in the presence of a metallocene catalyst (D) and the copolymer ii) being an ethylene/aromatic vinyl compound copolymer obtained by a heat-degradation of a copolymer produced by co-polymerizing ethylene and an aromatic vinyl compound in the presence of a metallocene

Abstract: A dispersant for pigments for aromatic polymers, which is superior not only in the ability of dispersing pigments in aromatic polymers but also in attaining high transparency and stability of the resulting color, while avoiding grafting step and attaining a lower production cost. The dispersant for pigments for aromatic polymers comprises a wax composed of a random copolymer of ethylene with an aromatic vinyl compound, which has a content of structural unit derived from ethylene of 99-10% by weight and a content of structural unit derived form the aromatic vinyl compound of 1-90% by weight and exhibiting an intrinsic viscosity of 0.04-0.6 dl/g.

Abstract: The present invention uses a single television camera (40), an optical system, and a plurality of optical paths comprising a plurality of mirrors (22), (23), and (26), and shutters (24) and (27) for blocking light. Object images from the optical paths are alternately selected in synchronization with the field scanning operation of the television camera (40) to be projected into the television camera (40) so that a final image is picked up in three dimensions. The imaging device (FIG. 2) used in the television camera (40) has two-dimensionally arranged photoelectric converting elements (42) and corresponding vertical transfer stages (43), and is designed so that signal charges accumulated in the two-dimensionally arranged photoelectric converting elements (42) are transferred simultaneously to the corresponding vertical transfer stages (43).

Abstract: The present invention relates to a method of and an apparatus for emitting light in ice, to be applied to an ice skating rink and the like. With the apparatus for emitting light in ice according to the present invention, when light emission sources are light emitting diodes (LED), LED mounting blocks are used and laid on a concrete floor, so that mounting works can be facilitated. Additionally, LED are used as the light emission sources, so that a possibility of ice melting can be eliminated. Furthermore, with the apparatus for emitting light in ice according to the present invention, when miniature incandescent bulbs are used as the light emission sources, the miniature incandescent bulbs disposed in transparent vinyl chloride tubes are laid on the concrete floor, so that a special water-proof measure can be dispensed with. Furthermore, air is delivered into the tube, whereby heat in the tube is prevented from being stagnant in the tube, so that the ice melting is avoided.