Abstract: A polymer composition includes a polymer and a flame retardant. The flame retardant includes: at least one nucleic-acid-related substance that is selected from the group consisting of a nucleic acid base, a nucleoside, a nucleotide and a polynucleotide; and/or at least one derivative of the nucleic-acid-related substance. The derivative is selected from the group consisting of: (a) a sulfate, a nitrate, a borate, a hydrochloride or an isocyanurate of the nucleic acid base; (b) a metal salt of the nucleotide; and (c) a compound obtained by substituting an alkyl group having 1 to 4 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkoxy group or a mercapto group for a hydrogen atom that is bonded to a nitrogen atom of the nucleic acid base, the nucleoside or the nucleotide.

Abstract: Disclosed herein is a timekeeping apparatus having a timekeeping function, the timekeeping apparatus comprising a wake-up function unit configured to conduct a predetermined wake-up operation at a preset time; and an additional functions unit configured to operate in association with the activation of the wake-up function unit.

Abstract: A dehalogenation treatment method of a halogen-containing flame-retardant resin composition has a step of bringing the halogen-containing flame-retardant resin composition into contact with a material mixture containing a dehalogenation material and a dehalogenation promoting material at a temperature lower than a thermal decomposition temperature of the resin composition.

Abstract: A flame-retardant polymer composition contains a polymer and a flame retardant, in which the flame retardant includes a polymer having a flame-retardant moiety in a side chain thereof.

Abstract: A nonslip walking stick rest disposed at a lower end of a walking stick, is characterized that, the walking stick rest is provided with a pliable plastic tray having a nonslip surface at a lower housing; the lower housing has a spherical recess provided with a shaft having a sphere at an interior thereof above the lower housing is a fixed middle housing; the shaft is provided with an upper housing; a spring is disposed at the upper portion of the shaft, and between the upper housing and the middle housing; and the upper housing has an insertion end for inserting to the lower end of the walking stick. When the walking stick is propped on the ground, the lower housing of the walking stick rest is capable of automatic adaptations for staying closely to the ground and preventing slipping.

Abstract: A nonslip walking stick rest disposed at a lower end of a walking stick, is characterized that, the walking stick rest is provided with a pliable plastic tray having a nonslip surface at a lower housing; the lower housing has a spherical recess provided with a shaft having a sphere at an interior thereof above the lower housing is a fixed middle housing; the shaft is provided with an upper housing; a spring is disposed at the upper portion of the shaft, and between the upper housing and the middle housing; and the upper housing has an insertion end for inserting to the lower end of the walking stick. When the walking stick is propped on the ground, the lower housing of the walking stick rest is capable of automatic adaptations for staying closely to the ground and preventing slipping.

Abstract: There is provided a treatment method of efficiently separating an additive component from a resin component for the purpose of treating and recycling a thermoplastic resin composition containing an additive. The treatment method includes heating and agitating the thermoplastic resin composition containing the additive together with a solvent for dissolving at least part of the additive at a temperature ranging from the glass transition temperature of the thermoplastic resin to the boiling point of the solvent inclusive, and separating and recovering the solvent in a liquid state in which at least part of the additive is dissolved, so that at least part of the additive is separated and removed from the thermoplastic resin composition.

Abstract: A survey burden is reduced on a material manufacturer side, while survey items are easily changed on a material purchaser side.

Abstract: A polymer composition includes a polymer and a flame retardant. The flame retardant includes: at least one nucleic-acid-related substance that is selected from the group consisting of a nucleic acid base, a nucleoside, a nucleotide and a polynucleotide; and/or at least one derivative of the nucleic-acid-related substance. The derivative is selected from the group consisting of: (a) a sulfate, a nitrate, a borate, a hydrochloride or an isocyanurate of the nucleic acid base; (b) a metal salt of the nucleotide; and (c) a compound obtained by substituting an alkyl group having 1 to 4 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkoxy group or a mercapto group for a hydrogen atom that is bonded to a nitrogen atom of the nucleic acid base, the nucleoside or the nucleotide.

Abstract: A method for treating waste printed circuit boards, the method has the steps of: heating up for dry-distilling the waste printed circuit boards having copper foil retaining solder in at least a part of the surface, at a temperature of 250° C. or higher; pulverizing the dry-distilled material of the waste printed circuit boards obtained in the heating step; and separating the pulverized material of the waste printed circuit boards obtained in the pulverizing step, into board resin component and metal component.

Abstract: A dehalogenation treatment method of a halogen-containing flame-retardant resin composition has a step of bringing the halogen-containing flame-retardant resin composition into contact with a material mixture containing a dehalogenation material and a dehalogenation promoting material at a temperature lower than a thermal decomposition temperature of the resin composition.

Abstract: The present specification discloses a method for treating a thermoplastic resin composition containing a flame retardant comprising a dissolving or dispersing step of bringing the thermoplastic resin composition containing a flame retardant into contact with a solvent to dissolve or disperse at least one portion of the flame retardant into the solvent. According to this, a thermoplastic resin composition containing a flame retardant can be easily separated into a flame retardant and a thermoplastic resin in their original states.

Abstract: A method for treating waste printed circuit boards, the method has the steps of:

Abstract: A working fluid which demonstrates a preferable performance even with a small filling amount of the refrigerant of hydrocarbons containing no halogen atom such as ethane, propane, butane, iso-butane and the like into the refrigerating cycle equipment is disclosed. There is also disclosed a refrigerating cycle equipment excellent in the safety against the worst case of the refrigerant leakage, brought by the use of the above-mentioned working fluid. The working fluid comprises the refrigerant of hydrocarbons containing 2 to 4 carbon atoms and no halogen atom, and a lubricating oil for a refrigerator containing, as its main component, an ester compound which is incompatible with the above-mentioned refrigerant.

Abstract: There is disclosed a working fluid for refrigerating cycle equipment of refrigerant compression-type containing the refrigerant and a refrigeration lubricant for a refrigerator, wherein said refrigerant comprises a hydrocarbon having 2 to 4 carbon atoms and no halogen atom and said refrigeration lubricant comprises, as a main component, a ketone compound which is incompatible with said refrigerant. This working fluid demonstrates preferable performance even if the amount of the refrigerant is small.

Abstract: A refrigeration system includes an outdoor unit having a refrigeration compressor and a heat exchanger, and an indoor unit having a heat exchanger to be placed where air conditioning is desired. In installing the refrigeration system, the outdoor unit is first connected with the indoor unit via pipe lines, and an air absorbing device containing zeolite as an adsorbent is subsequently placed on the outdoor unit, the indoor unit, or the pipe lines to remove air. The air absorbing device is then separated from the refrigeration system, and refrigerant is caused to circulate through the refrigeration system.

Abstract: A method for constructing a refrigerating cycle that has a unit having a refrigerating compressor which is filled with a part or all of a quantity of working medium beforehand and a heat exchanger, and a unit having a heat exchanger that is located in an area of air conditioning and refrigeration, wherein the units are connected with each other by piping, uses such steps of: connecting the unit having the refrigerating compressor and heat exchanger with the unit having the heat exchanger that is located in an area of air conditioning and refrigeration by means of piping; removing oxygen in a system of the refrigerating cycle by providing an oxygen absorbent in a course of a refrigerant circulating path; separating the oxygen absorbent from the refrigerating cycle; and circulating a refrigerant in the refrigerating cycle, wherein the separating step is carried out immediately after or after the removing step, and the refrigerant circulating step is a final step.

Abstract: A refrigeration system includes an outdoor unit having a refrigeration compressor and a heat exchanger, and an indoor unit having a heat exchanger to be placed where air conditioning is desired. In installing the refrigeration system, the outdoor unit is first connected with the indoor unit via pipe lines, and an air absorbing device containing zeolite as an adsorbent is subsequently placed on the outdoor unit, the indoor unit, or the pipe lines to remove air. The air absorbing device is then separated from the refrigeration system, and refrigerant is caused to circulate through the refrigeration system.

Abstract: A hologram recording device, which comprises a recording layer of a polymer composition a photoconductive element, a second-order super-polarization element and an electron or hole capturing material and having a non-centro symmetric structure is disclosed. Transparent electrode layers are provided on each side of the recording layer. The hologram recording device is capable of space light modulation and real time hologram recording. Also disclosed is a method of manufacturing the hologram recording device and a method of hologram recording using the device. The hologram recording material is of a polymer composition a photoconductive element, a second-order super-polarization element and an electron or hole capturing element. The polymer composition has a non-centro symmetric structure. The hologram recording device according to the invention comprises a recording layer of a polymer composition including a photoconductive element and a second-order super-polarization element.

Abstract: The invention relates to a non-linear optical material comprising a salt of an organic compound with an optically active organic acid, wherein said organic compound has a conjugated .pi. electron system containing both electron donor and acceptor groups and has at least one substituent group represented by the following formulas (1), (2) and (3) which is located outside of said conjugated .pi. electron system. The invention also concerns a method of manufacturing the optical material and an optical converter which uses the non-linear optical material. ##STR1## According to the invention, a second-order non-linear optical material, which is readily capable of crystal growth, permits a large crystal to be readily obtained, and ensures high hardness of the crystal and gives excellent processibility and non-linear optical characteristics.