Abstract: An electric circuit breaker device includes a housing including an accommodation space extending in one direction, an igniter, a projectile configured to be projected from an end side of the accommodation space, and a conductor piece forming part of an electric circuit, a region defined by an inner wall of the housing holding the conductor piece in the accommodation space serves as a holding region, and the projectile includes: a rod portion extending along the extending direction of the accommodation space and inserted into the holding region; and an elastic portion being a member having elasticity and provided on an outer periphery of the rod portion facing the inner wall of the holding region after the projectile is projected, and the elastic portion coming into contact with the inner wall of the holding region when the projectile is projected.

Abstract: A gas generator includes an igniter, a gas generating agent that generates a combustion gas by being combusted, a housing that accommodates the igniter and the gas generating agent inside the housing, the housing including an inner surface, a gas discharge port penetrating through the housing from an inside to an outside of the housing, the gas discharge port including a chamfered region in which a corner portion of an opening of the gas discharge port on the inner surface is removed over an entire circumference of the opening, and a seal attached to the inner surface of the housing, closes, before the actuation of the igniter, the gas discharge port by covering the opening of the gas discharge port on the inner surface of the housing, and opens the gas discharge port by being ruptured due to reception of a pressure of the combustion gas.

Abstract: A gas generator includes a plurality of gas discharge ports with a first gas discharge port and a second gas discharge port, the first gas discharge port and the second gas discharge port being configured such that rupturing pressures of a closing member at the first gas discharge port and the second gas discharge port are different from each other, a minimum flow path cross-sectional area of a gas flow path formed by the first gas discharge port is equivalent to a minimum flow path cross-sectional area of a gas flow path formed by the second gas discharge port, and the first gas discharge port and the second gas discharge port are different from each other in at least one of a shape or a peripheral length of an opening on an inner surface side of a housing.

Abstract: Provided is a novel porous cellulose medium that can efficiently separate a large target molecule in a calibration standard. A porous cellulose medium including a porous cellulose particle having a particle size from 1 to 600 ?m, wherein, in sieving the porous cellulose medium for classification and using a fraction corresponding to aperture openings between 53 ?m and 106 ?m as a support for size exclusion chromatography, a polyethylene oxide standard is run through size exclusion chromatography with pure water as a mobile phase, and a weight average molecular weight Mw and a gel partition coefficient Kav of the polyethylene oxide standard satisfy Relationships (A) and (B) above: in a case where 4.80?log Mw?5.50,Kav>?0.445×log Mw+2.55??(A) in a case where 5.75?log Mw,0?Kav<0.19??(B).

Abstract: An electrical circuit switching device includes a discharge chamber in which a combustion gas from the igniter is discharged when the igniter is actuated; a casing having conductivity and defining at least a part of the discharge chamber; and a pair of first conductor pieces arranged outside the discharge chamber in a state of being separated from each other, each of the pair of first conductor pieces forming a part of the first electrical circuit, in which before actuation of the igniter, at least one of the pair of first conductor pieces and the casing are in a non-contact state with each other and thus the first electrical circuit is in a disconnection state, and when the igniter is actuated, the casing is deformed and thus expands to an outside of the discharge chamber by energy of a combustion gas generated by actuation of the igniter.

Abstract: An electric circuit breaker device including a housing serving as an outer shell member, an igniter, a projectile being configured to be projected from one end side of an accommodation space of the housing by energy received from the igniter, the projectile being configured to move along an extending direction of the accommodation space, and a conductor piece forming a part of an electric circuit, the conductor piece including a cutoff portion between a first connection end portion as one end portion and a second connection end portion as the other end portion, the cutoff portion being configured to be cut off by movement of the projectile, the cutoff portion being disposed across the accommodation space. Further, the projectile includes an engaging portion configured to engage with an engaged portion provided inside the housing when the projectile moves along the extending direction of the accommodation space.

Abstract: A filter unit for a gas generator includes a filter and a filter housing coaxially positioning and fixing the filter in a filter accommodating space. The filter housing includes a first restraining end part disposed as a closing surface at one end of the filter housing and restraining a one axial end surface of the filter, a second restraining end part disposed at an other end of the filter housing, surrounding a gas inflow port, and restraining an other axial end surface of the filter, and a peripheral wall part connecting the first restraining end part and the second restraining end part and including a gas discharge port. The peripheral wall part includes a restraining peripheral wall part restraining a peripheral surface of the filter, and a non-restraining peripheral wall part in which the gas discharge port is disposed.

Abstract: Provided is a water-insoluble crosslinked structure with an excellent metal-adsorbing effect. The crosslinked structure is formed by crosslinking a first linear polymer and a second linear polymer. The first linear polymer has a plurality of pendant groups represented by Formula (a). The second linear polymer has a plurality of pendant groups represented by Formula (a). Some of the plurality of pendant groups in the first linear polymer and some of the plurality of pendant groups in the second linear polymer are bonded to each other via a crosslinker. In the formula, ring Z represents a heterocycle containing a nitrogen atom as a heteroatom, R1 represents a single bond or an alkylene group having from 1 to 10 carbons, and Q+ represents a counter cation.

Abstract: Provided is a method that enables industrially efficient production of an esterified polysaccharide product. A method for producing an esterified polysaccharide product, the method including reacting a polysaccharide-containing biomass, a basic ionic liquid with a pKa of a conjugate acid of an anion from 2 to 19 as a calculated value in a vacuum, and an esterifying agent using a kneader equipped with a shear force application mechanism. A cation constituting the basic ionic liquid is preferably one selected from the group consisting of an imidazolium cation, a pyridinium cation, and a tetraalkylammonium cation.

Abstract: A tow band for heated tobacco product tip is a tow band of cellulose acetate provided by uniting and crimping a plurality of filaments into a bundle, in which a total denier is set to a value in a range of 10000 to 40000 (inclusive) and a filament denier is set to a value in a range of 6.0 to 20.0 (inclusive), and where the total denier is denoted by TD and a breaking strength of the tow band is denoted by F, a ratio F/TD is set to a value of 0.0015N/denier or more.

Abstract: An igniter assembly includes: an ignition device including: an igniter including an ignition portion airtightly accommodating an ignition charge and a conductive portion that supplies an ignition current for igniting the ignition charge, an igniter holding portion having a tubular shape and holding the igniter, and a fixing member made of a resin, interposed between the igniter and the igniter holding portion, and fixing the igniter to the igniter holding portion; a case having a bottomed tubular shape and accommodating a first gas generating agent and the ignition portion of the igniter, and a partition wall partitioning an inside of the case into a space in which the igniter and the fixing member are disposed and a space in which the first gas generating agent is accommodated, the partition wall having moisture impermeability. The partition wall is fixed and in contact with the case.

Abstract: A resin molded body includes: resin; and a conductive member having a coil shape with a center axis; with a flat surface in at least part of the resin molded body, in which an average angle between the flat surface and the center axis is 50° or greater.

Abstract: A cellulose acetate composition according to the present disclosure includes cellulose acetate, a plasticizer, and a polymer having a constituent unit derived from a (meth)acrylate. The weight average molecular weight of the (meth)acrylate-typed polymer is greater than or equal to 500 and less than 5000. The content of the (meth)acrylate-typed polymer in the composition is less than 2 parts by mass per 100 parts by mass of the cellulose acetate. A molded article is formed from the cellulose acetate composition.

Abstract: The present invention provides a fluorescent diamond containing an MV center emitting fluorescence at a concentration of 1×1014/cm3 or higher, where M represents a metal or metalloid, and V represents a vacancy.

Abstract: Provided is an isolation and purification method for isolating and purifying extracellular vesicles. In the method for isolating and purifying extracellular vesicles from a solution containing the extracellular vesicles and unnecessary substances. The isolation and purification method is an adsorbent treatment method in which a solution containing the extracellular vesicles and unnecessary substances is brought into contact with an adsorbent to cause the adsorbent to adsorb and retain the unnecessary substances other than the extracellular vesicles. The adsorbent is a porous granular material having a pore, an interior of the pore being positively charged, and the adsorbent can adsorb and retain, in the interior of the pore, negatively charged unnecessary substances other than the extracellular vesicles.

Abstract: A gas generator includes a housing and an igniter assembly defining, together with the housing, an accommodating space in which a gas source is stored. The igniter assembly includes an igniter, a collar member, a resin member integrally joining the igniter and the collar member, and a cover member made of metal, surrounding an ignition portion and the resin member in a manner that the igniter and the resin member are sealed with respect to the accommodating space, and configured to be ruptured when the igniter is actuated. The cover member is welded to the collar member over an entire circumference while straddling a boundary line between the resin member and the collar member.

Abstract: A gas generator includes: a housing; an ignition unit disposed in the housing; a gas generating agent that is accommodated in a combustion chamber in the housing and that generates a combustion gas upon operation of the ignition unit; a discharge port provided in the housing and configured to discharge the combustion gas generated in the housing to an outside; and a filter disposed between the discharge port and the gas generating agent. The filter extends in an axial direction, at least an outer peripheral portion on one end surface of the filter in the axial direction is connected to an inner wall surface of the housing to surround the discharge port, a portion that is at least a part of an outer peripheral surface of the filter around an axis and extends over the entire circumference is an inflow portion of the combustion gas, and the inflow portion is disposed to be in communication with the combustion chamber.

Abstract: A gas generator includes: an ignition device including an igniter, an igniter holding portion having a tubular shape and being configured to hold the igniter and a fixing portion made of resin and being configured to fix the igniter to the igniter holding portion; and a case having a bottomed tubular shape and being configured to accommodate a gas generating agent which combusts by actuation of the ignition device, the case being made of resin and including a side wall portion with a base end side being connected to the fixing portion, and a closing end portion configured to close a tip end side. The case includes an inclined surface extending obliquely with respect to an axial direction of the case on the tip end side, and a fragile part formed at an edge portion excluding at least a base end portion of the inclined surface.

Abstract: A gas generator includes a housing, one or more first discharge ports provided in the housing and configured to discharge the combustion gas, one or more second discharge ports provided in the housing configured to discharge the combustion gas, and a closing member covering at least one of the one or more first discharge ports and at least one of the one or more second discharge ports together. The closing member includes a portion covering the at least one first discharge port and configured to rupture at a first rupture pressure and a portion covering the at least one second discharge port and configured to rupture at a second rupture pressure, and the closing member includes a breakage assisting portion configured to reduce a strength of the closing member at at least a boundary portion between the at least one first discharge port and the at least one second discharge port.

Abstract: Biodegradable spherical particles contain a biodegradable polymer as a main component. The biodegradable spherical particles have a particle size variation coefficient CV of 40% or less, and a biodegradation degree on the fifth day in a biodegradability test in accordance with OECD TG301F of 40% or less. A cosmetic composition contains the biodegradable spherical particles. A method for producing the biodegradable spherical particles includes preparing a mixture by mixing a biodegradable polymer, a plasticizer, and a water-soluble polymer; melt-kneading the mixture at 200° C. or higher and 280° C. or lower to yield a kneaded product; and removing the water-soluble polymer from the kneaded product.