Abstract: A color developer for a thermal recording layer includes: a compound of formula (I): ; and an N-substituted amino acid derivative of formula (II): (R0—X)—Y—(Z). The color developer is excellent in plasticizer resistance.

Abstract: An organic compound is represented by the following formula (1). wherein X is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl-10-oxide and Y is a protecting group.

Abstract: The present invention relates to an N,N?-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N?-diurea derivative represented by the following general formula (1): (wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).

Abstract: A method for producing a polyurethane elastic fiber according to the present invention contains the steps of: [1] producing a polyurethane urea polymer (A) having a number average molecular weight ranging from 12,000 to 50,000, and represented by general formula (1); [2] preparing a spinning dope by adding the polyurethane urea polymer (A) to a polyurethane urea polymer (B); and [3] spinning a polyurethane elastic fiber using the spinning dope. In the formula, R1 and R2 are an alkyl group or a hydroxyalkyl group, R3 is an alkylene group, a polyethyleneoxy group or a polypropyleneoxy group, R4 is a diisocyanate residue, X is a urethane bond or a urea bond, R5 and R6 are a diisocyanate residue, P is a diol residue, Q is a diamine residue, UT is a urethane bond, UA is a urea bond, each of k, 1, m and n is 0 or a positive number.

Abstract: A method for producing a polyurethane elastic fiber according to the present invention contains the steps of: [1] producing a polyurethane urea polymer (A) having a number average molecular weight ranging from 12,000 to 50,000, and represented by general formula (1); [2] preparing a spinning dope by adding the polyurethane urea polymer (A) to a polyurethane urea polymer (B); and [3] spinning a polyurethane elastic fiber using the spinning dope. In the formula, R1 and R2 are an alkyl group or a hydroxyalkyl group, R3 is an alkylene group, a polyethyleneoxy group or a polypropyleneoxy group, R4 is a diisocyanate residue, X is a urethane bond or a urea bond, R5 and R6 are a diisocyanate residue, P is a diol residue, Q is a diamine residue, UT is a urethane bond, UA is a urea bond, each of k, l, m and n is 0 or a positive number.

Abstract: The antioxidant according to the present invention contains a polyurethane compound represented by the following formula (1): (wherein Y1 is a residue of a diol, and plural Y1s may be the same or different, R1 is a residue of an aromatic diisocyanate, and plural R1s may be the same or different, X1 is a residue of a hindered phenol compound having at least k hindered phenolic hydroxyl groups, and plural X1s may be the same or different, m is an integer of 1 or more, n is an integer of 1 or more, and k is an integer of 2 or more).

Abstract: [Problem] To provide containers stronger than conventional containers with respect to a lateral load when stacked. [Solution] The containers according to the present invention are configured so that a corner engaging projection and a corner engaging recess are engaged at the four corners on the bottom face and the top face of a top and a bottom container when stacked, thereby allowing such containers to hold up against the lateral load received when stacked by dispersing the lateral load more widely than conventional containers. Thus, the present invention achieves a higher strength with respect to the lateral load when stacked than conventional containers and prevents incidents where a first sidewall and second sidewall would be separated from each other due to the first sidewall or second sidewall being pushed and bent outwards.

Abstract: A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR? group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.

Abstract: [Problem] To provide containers stronger than conventional containers with respect to a lateral load when stacked. [Solution] The containers according to the present invention are configured so that a corner engaging projection and a corner engaging recess are engaged at the four corners on the bottom face and the top face of a top and a bottom container when stacked, thereby allowing such containers to hold up against the lateral load received when stacked by dispersing the lateral load more widely than conventional containers. Thus, the present invention achieves a higher strength with respect to the lateral load when stacked than conventional containers and prevents incidents where a first sidewall and second sidewall would be separated from each other due to the first sidewall or second sidewall being pushed and bent outwards.

Abstract: A pallet includes columns, an upper deck, and a lower deck. The upper deck links upper ends of the columns such that upper surfaces of the columns and upper deck form an upper deck surface. The lower deck links lower ends of the columns such that lower surfaces of the columns and lower deck form a lower deck surface. Fork insertion structures receive forks of a lift apparatus inserted thereto from four sides of the pallet. Outer circumferential projections are formed along a peripheral edge of the upper deck surface, including an extended portion extending outward from the peripheral edge, and a support portion protruding upward from the extended portion. The support portion has a first height in an insertion-corresponding region, and a second height in a general region, the first height being equal to a thickness of the lower deck, the second height being greater than the first height.

Abstract: The present invention provides a phosphorus-containing flame retardant epoxy resin that can constitute parts of electric or electronic equipment having low water absorptiveness and high heat resistance. The phosphorus-containing flame retardant epoxy resin is obtained by reacting an epoxy resin having at least three epoxy groups per molecule with an organophosphorus compound represented by Formula (I).

Abstract: A sensitizer particle dispersion containing stearic acid amide, a preparation method thereof, a mixed dispersion composition for a thermosensitive recording layer using the sensitizer particle dispersion, and a thermosensitive recording medium using the mixed dispersion composition are provided. The sensitizer particle dispersion can be safely prepared under atmospheric pressure by mixing stearic acid amide and another sensitizer at a mass ratio of 95:5˜51:49; co-melting the mixture by heat in emulsifier-dispersed water, whereby the mixture is unified and emulsified into particles, or emulsifying the co-melted mixture of stearic acid amide and the other sensitizer unified by co-melting the mixture by heat, into particles in emulsifier-dispersed water; and quenching the obtained emulsified dispersion, thus crystallizing sensitizer particles from the emulsified particles.

Abstract: Disclosed herein is a method of preparing a high-melting point flame retardant crystal, comprising the steps of: reacting 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide with 1,4-naphthoquinone in an inert solvent having a dielectric constant of 10 or less to reduce a content of by-products, thereby obtaining a reaction composition; and dissolving the reaction composition in any one solvent selected from the group consisting of ethyleneglycol, propyleneglycol, diethyleneglycol, cyclohexanone, benzyl alcohol, acetate ester, benzoate ester and a mixture thereof to recrystallize and refine the reaction composition, thereby obtaining high-melting point retardant crystal, represented by Formula 1, having a start melting point of 280° C. or more and a melting point of 291° C. or more, which are measured by differential thermogravimetric analysis.

Abstract: To provide a box pallet side wall that is excellent in beauty and is easily cleaned as well compared to a conventional box pallet side wall, and in which weight saving and high strengthening is possible compared to the conventional one. This box pallet side wall forms a hollow structure having an enclosed space therein. Thus, compared to a conventional box pallet side wall having a solid structure, when the box pallet side wall and the conventional one have the same weight, the geometrical moment of inertia of the box pallet side wall is increased. Since cell configuration ribs for reinforcing an outer main plate and an inner main plate are housed in the box pallet side wall and not exposed outside, irregularity on an outer surface of the box pallet side wall can be decreased compared to the conventional one.

Abstract: This invention relates to a novel compound having high refractive index suitable for use in optical resin materials, etc., without containing a sulfur atom, and to a method of preparing the same, in which the compound is a phosphorus-based (meth)acrylate compound represented by Formula (I).

Abstract: A container of the present invention includes a bridging member disposed between a pair of inner side faces of a band insertion groove formed in a bottom wall. A rolling bearing is arranged above the bridging member and a band can be wound around the bearing and the bridging member together. Thus, since both a sideslip and jumping of the rolling bearing can be prevented without covers, the container is more superior in usability to a conventional container requiring a cover, and the stacking height can be suppressed as well.

Abstract: A collapsible container which includes a rectangular bottom wall and sidewalls pivotally joined to respective outer edges of the bottom wall and is changeable between an assembled state in which the sidewalls are raised from the bottom wall and a folded state in which the sidewalls are folded to be superimposed on the bottom wall comprises a pair of band plate members extending along upper edges of a pair of first sidewalls opposed to each other and a band plate hinge mechanism joining the band plate members near to top surfaces of the first sidewalls so that the band plate members are pivotable between a horizontal posture of protruding from the first sidewalls horizontally inward and a rising posture of rising from the first sidewalls vertically upward. The band plate hinge mechanism is capable of positioning the band plate members in the horizontal posture. The band plate members assuming the horizontal posture are arranged as displaced lower relative to the top surfaces of the first sidewalls.

Abstract: This invention relates to a novel compound having high refractive index suitable for use in optical resin materials, etc., without containing a sulfur atom, and to a method of preparing the same, in which the compound is a phosphorus-based (meth)acrylate compound represented by Formula (I).

Abstract: An assemblable and disassemblable container is disclosed wherein a short wall member includes upper corner reinforcing members each formed at a corresponding corner formed by an upper horizontal flange and an endwise vertical side plate portion of the short wall member, and the upper corner reinforcing member includes an inclined coupling rib coupling the vicinity of the end of the upper horizontal flange to the vicinity of the upper end of the endwise vertical side plate portion, and wherein the lower end of the inclined coupling rib is positioned close to an endwise vertical side plate portion side of a lower horizontal rib of a horizontal portion included in a fitting block member. This configuration allows the short wall members and thus the container formed into a box shape to be increased in strength and rigidity, and can be prevented from undergoing torsional deformation.

Abstract: To provide a box pallet side wall that is excellent in beauty and is easily cleaned as well compared to a conventional box pallet side wall, and in which weight saving and high strengthening is possible compared to the conventional one. This box pallet side wall forms a hollow structure having an enclosed space therein. Thus, compared to a conventional box pallet side wall having a solid structure, when the box pallet side wall and the conventional one have the same weight, the geometrical moment of inertia of the box pallet side wall is increased. Since cell configuration ribs for reinforcing an outer main plate and an inner main plate are housed in the box pallet side wall and not exposed outside, irregularity on an outer surface of the box pallet side wall can be decreased compared to the conventional one.