Provided is a sulfur-free crosslinked composition for dip forming, including: a carboxylated diene rubber elastomer; a crosslinking agent that contains at least one of an organic crosslinking agent or a metal crosslinking agent with a valence of two or more; an antioxidant that contains at least one compound having a phenol structure and a sulfur atom; and water, wherein an amount of the at least one compound is 0.05 to 4 parts by weight relative to 100 parts by weight of the elastomer.
An aluminum crosslinking agent for dip molding has a sufficient stability enabling use in mass production of gloves and the like, and makes it possible to provide a molded body obtained using the aluminum crosslinking agent, which has sufficient tensile strength and fatigue durability and is soft and elongating; a dip molding composition gloves, and a method for producing gloves are provided. These are an aluminum crosslinking agent for dip molding, including a polynuclear aluminum lactate compound, which has a polynuclear aluminum structure and at least one lactic acid residue. The polynuclear aluminum structure has a structure where a plurality of aluminum atoms are polymerized through one oxygen atom, and has a degree of polymerization of 2 to 20, and lactic acid residues or hydroxyl groups are bonded to remaining valences of the aluminum atom.
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
B29K 79/00 - Utilisation comme matière de moulage d'autres polymères contenant dans la chaîne principale uniquement de l'azote avec ou sans oxygène ou carbone
B29K 9/00 - Utilisation de caoutchouc dérivé de diènes conjugués comme matière de moulage
When a first semiconductor unit 7f is damaged in a manner associated with generation of a large amount of heat due to deterioration over time, the surface temperature of the damaged first semiconductor unit 7f rapidly rises. Heat generated from the first semiconductor unit 7f in this manner is immediately transmitted to a first blocking part 7g via a filling thermoconductive substance, and therefore a fusion cutting part of the first blocking part 7g melts before the raised temperature of the first semiconductor unit 7f reaches a temperature at which a combustible substance in an explosive atmosphere ignites. The first blocking part 7g blocks a supply of electric power from a battery unit. Because the heat generated from the first semiconductor unit 7f is quickly and efficiently transmitted to the first blocking part 7g through thermal conduction by the thermoconductive substance, the partially broken first semiconductor unit 7f does not reach the temperature at which a combustible substance in an explosive atmosphere ignites.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
A41D 13/00 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs
A41D 13/002 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs avec des conditions d'environnement interne qui sont commandées
F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
5.
COMPOSITION AND GLOVE FOR DIP MOLDING, AND METHODS FOR PRODUCING COMPOSITION AND GLOVE FOR DIP MOLDING
This non-sulfur-crosslinked composition for dip molding contains a carboxylated diene rubber elastomer, a crosslinking agent containing at least one of an organic crosslinking agent and a divalent or higher metal crosslinking agent, an antioxidant containing a compound having at least one of a phenol structure and a sulfur atom, and water, the content of the at least one compound being 0.05-4 weight parts per 100 weight parts of elastomer.
Provided is a dip molding composition containing at least a nitrile rubber elastomer containing a carboxyl group and an amide group. In this dip molding composition, the elastomer contains 50% by weight or more, 78% by weight or less of a conjugated diene monomer-derived structural unit, 17% by weight or more, 35% by weight or less of an ethylenically unsaturated nitrile monomer-derived structural unit, 2.0% by weight or more, 8.0% by weight or less of an ethylenically unsaturated carboxylic acid monomer-derived structural unit, and 0.5% by weight or more, 5.0% by weight or less of an amide group-containing monomer-derived structural unit, and has an MEK-insoluble content of 50% by weight or more, 80% by weight or less.
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
The purpose of this invention is to provide trousers, which can unnoticeably protect the lower back and which enables a healthy person having no experience of the lower back pain to prevent the lower back pain by tightening an ordinary belt. Trousers (1) are provided with a main trouser body (10) and a waist section (20) that is provided at the upper edge of the main trouser body (10) and on which a belt (B) can be detachably wound, the waist section (20) is provided at a position that surrounds the pelvis of the wearer when worn and comprises a belt core (21) and a rubber belt (30), which is a dimension-adjusting part for adjusting the dimension in the direction around the torso. The belt core (21) faces at least the front side and the back side of the pelvis, is set to a wider width dimension than the width dimension of the belt (B) and has stiffness that is capable of transmitting the tightening force of the belt (B) toward the pelvis.
A41D 13/05 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs protégeant uniquement une partie particulière du corps
8.
COMPOSITION FOR DIP MOLDING AND MOLDED BODY THEREOF
Provided is a dip molding composition which contains at least: a carboxyl group-containing nitrile rubber elastomer; an epoxy crosslinking agent containing an epoxy compound that contains three or more glycidyl ether groups in one molecule and has a basic skeleton containing an alicyclic, aliphatic or aromatic hydrocarbon; and a pH modifier. In this dip molding composition, the elastomer contains 50% by weight or more, 78% by weight or less of a conjugated diene monomer-derived structural unit, 20% by weight or more, 30% by weight or less of an ethylenically unsaturated nitrile monomer-derived structural unit, and 3.5% by weight or more, 6% by weight or less of an ethylenically unsaturated carboxylic acid monomer-derived structural unit; the elastomer has an MEK-insoluble content of 60% by weight or more, 80% by weight or less; and the epoxy crosslinking agent has an MIBK/water distribution ratio of 50% or higher.
C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
Provided is a dip molding emulsion including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20% by weight to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1% by weight to 10% by weight, and the butadiene-derived structural unit in an amount of 50% by weight to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10% to 70% as determined by a specific measurement method.
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
[Expression 1]
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
[Expression 1]
k1′+k2′+k3′≤9.3 N/mm (1)
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
[Expression 1]
k1′+k2′+k3′≤9.3 N/mm (1)
[Expression 2]
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
[Expression 1]
k1′+k2′+k3′≤9.3 N/mm (1)
[Expression 2]
0.55≤k1′/(k1′+k2′+k3′) (2)
Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2,
[Expression 1]
k1′+k2′+k3′≤9.3 N/mm (1)
[Expression 2]
0.55≤k1′/(k1′+k2′+k3′) (2)
wherein k1′ is a value obtained by dividing an equilibrium coefficient k1 by a thickness of a test piece, and k2′ and k3′ are values obtained by dividing viscous coefficients k2 and k3 by the thickness of the test piece, respectively.
A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
C08G 59/32 - Composés époxydés contenant au moins trois groupes époxyde
C08J 5/02 - Traitement direct des dispersions, p. ex. du latex, pour produire des objets
C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
Provided is an aluminum crosslinking agent for dip molding that does not cause gelation in a dip molding composition and that has a satisfactory stability that enables use even in mass production, e.g., in glove production, wherein molded articles obtained using the aluminum crosslinking agent have a satisfactory tensile strength and fatigue resistance and are soft and stretchable. Also provided are a dip molding composition, gloves, and a method for producing gloves. The aluminum crosslinking agent for dip molding contains a polynuclear aluminum lactate compound, wherein the aluminum crosslinking agent for dip molding is characterized in that the polynuclear aluminum lactate compound has a polynuclear aluminum structure and at least one lactic acid residue; the polynuclear aluminum structure has a structure in which a plurality of aluminum atoms are polymerized with each other via a single interposed oxygen atom; the degree of polymerization here is 2-20; and the residual valences of the aluminum atoms are bonded to a lactic acid residue or a hydroxyl group. The dip molding composition, gloves, and glove production method each use the aluminum crosslinking agent for dip molding.
This composition for dip molding contains at least a nitrile rubber elastomer containing a carboxylic group and an amido group, wherein: the elastomer contains 50-78 wt% of a structural unit derived from a conjugate diene monomer, 17-35 wt% of a structural unit derived from an ethylenic unsaturated nitrile monomer, 2.0-8.0 wt% of a structural unit derived from an ethylenic unsaturated carboxylic acid monomer, and 0.5-5.0 wt% of a structural unit derived from an amide group-containing monomer; and the undissolved MEK amount of the elastomer is 50-80 wt%.
A composition for dip molding containing at least a carboxyl-group-containing nitrile rubber elastomer, an epoxy crosslinking agent that contains an epoxy compound having a parent skeleton that has three or more glycidyl ether groups per molecule and also has an alicyclic, aliphatic, or aromatic hydrocarbon, and a pH regulator, wherein: the elastomer contains 50-78 wt% (inclusive) of structural units derived from a conjugated diene monomer, 20-30 wt% (inclusive) of structural units derived from an ethylenically unsaturated nitrile monomer, and 3.5-6 wt% (inclusive) of structural units derived from an ethylenically unsaturated carboxylic acid monomer; the MEK insoluble content of the elastomer is 60-80 wt% (inclusive); and the MIBK/water distribution coefficient of the epoxy crosslinking agent is 50% or higher.
B29C 41/36 - Alimentation en matière à mouler d'un moule, d'un noyau ou d'un autre support
C08G 59/42 - Acides polycarboxyliquesLeurs anhydrides, halogénures ou esters à bas poids moléculaire
C08F 236/04 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées
C08L 13/00 - Compositions contenant des caoutchoucs possédant des groupes carboxyliques
C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
Provided is a dip molding composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20 to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1 to 10% by weight, and the butadiene-derived structural unit in an amount of 50 to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10 to 70% as determined by a specific measurement method.
Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.
A41D 19/04 - Outils pour la fabrication des gantsDispositifs de mesure pour la fabrication des gants
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
B29K 79/00 - Utilisation comme matière de moulage d'autres polymères contenant dans la chaîne principale uniquement de l'azote avec ou sans oxygène ou carbone
C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
18.
Glove, composition for dip molding, and method for producing glove
A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
C08G 59/32 - Composés époxydés contenant au moins trois groupes époxyde
C08J 5/02 - Traitement direct des dispersions, p. ex. du latex, pour produire des objets
C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
The first problem addressed by the present invention is to produce a glove having excellent tensile strength, elongation and fatigue endurance with use of a halohydrin crosslinking agent, which has not been used in the field of conventional external crosslinking agent-type gloves, while using no vulcanization accelerator. The second problem addressed by the present invention is to produce a glove having excellent stress retention ratio and good elongation at the same time, while ameliorating weaknesses of conventional sulfur-vulcanized XNBR gloves. A crosslinking agent for dip molding, which contains a halohydrin compound having at least two halohydrin groups D represented by formula (I) in each molecule. In formula (I), R1 represents a hydrogen atom or an alkyl group; and X represents a halogen group.
The present invention provides a composition for dip molding, said composition containing at least: an elastomer which contains, in the polymer main chain, a structural unit derived from (meth)acrylonitrile, a structural unit derived from an unsaturated carboxylic acid, and a structural unit derived from butadiene; a polycarbodiimide; an epoxy crosslinking agent; water; and a pH adjuster. With respect to this composition for dip molding, the elastomer contains from 12% by weight to 36% by weight of the structural unit derived from (meth)acrylonitrile, from 2% by weight to 10% by weight of the structural unit derived from an unsaturated carboxylic acid, and from 50% by weight to 75% by weight of the structural unit derived from butadiene; the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound that has three or more epoxy groups in each molecule; and the polycarbodiimide includes at least one polycarbodiimide that contains a hydrophilic segment in the molecular structure.
Provided is a composition for dip molding, from which it is possible to produce a glove having excellent fatigue durability even after a certain period of time has passed since production through use of a modified bisphenol A glycidyl ether. This composition for dip molding contains an elastomer, which contains structural units derived from (meth)acrylonitrile, an unsaturated carboxylic acid and butadiene in the main polymer chain, an epoxy crosslinking agent, water and a pH-adjusting agent. The epoxy crosslinking agent includes a compound represented by formula (1). R1and R2are each independently a hydrogen atom or an alkyl group having 1-10 carbon atoms. Rings A1and A2are each a 1,4-phenylene ring or a 1,4-cyclohexylene ring. R3and R4are each independently an alkylene group having 1-6 carbon atoms. m and n are each independently a number between 0 and 6. 1 ≤ m+n ≤ 6 in a case where rings A1and A2are 1,4-phenylene rings, and 0 ≤ m+n ≤ 6 in a case where rings A1and A2 are 1,4-cyclohexylene rings.
The present invention pertains to a polyvinyl alcohol fiber containing a hard component, wherein the hard component of the polyvinyl alcohol fiber is a tabular hard component having a Mohs's hardness of 3 or greater, and the average value of the ratio (b/a) of the maximum length b of the principal surface of the tabular hard component to the maximum length a in a direction perpendicular to the principal surface is 5 or greater.
D01F 6/14 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir d'homopolymères obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir de polymères d'alcools non saturés, p. ex. d'alcool polyvinylique, ou de leurs acétals ou cétals
Provided is a method for manufacturing a glove, including (1) a step for dipping a glove molding die into a coagulant solution including calcium ions and causing the coagulant to adhere to the glove molding die, (2) a dispersing step for leaving a dip molding composition to stand while stirring the dip molding composition, (3) a dipping step, (4) a gelling step, (5) a leaching step, (6) a beading step, (7) a precuring step, and (8) a curing step, the steps of (3) through (8) above being performed in the above order, and the dip molding composition having a specific composition.
C08L 79/00 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant uniquement de l'azote, avec ou sans oxygène ou carbone, non prévues dans les groupes
Provided is a composition for dip molding containing at least: an elastomer containing, in the polymer main chain, a structural unit derived from (meth)acrylonitrile, a structural unit derived from an unsaturated carboxylic acid, and a structural unit derived from butadiene; an epoxy crosslinking agent; water; and a pH adjuster, wherein: in the elastomer, the structural units derived from (meth)acrylonitrile are 20-40% by weight, the structural units derived from an unsaturated carboxylic acid are 1-10% by weight, and the structural units derived from butadiene are 50-75% by weight; the epoxy crosslinking agent contains an epoxy crosslinking agent containing an epoxy compound that has three or more epoxy groups per molecule; and the water solubility according to a specific measurement method is 10-70%.
The present invention addresses the problem of providing an emergency evacuation warning device capable of effectively transferring vibrations to the head of a user, even if a helmet is interposed therebetween, and an emergency evacuation warning system. This emergency evacuation warning device for prompting a related person in a work area to carry out an evacuation action immediately is provided with: a casing which vibrates by means of the movement of an inbuilt vibrator; an elastic fixing band which detachably fixes the casing to a helmet of the related person, and which extends in two directions from the casing and is wound around the helmet along the surface of the helmet; and a supporting unit which partially supports the casing on the surface of the helmet in such a way that the helmet oscillates together with the casing by means of the vibrations of the vibrator, which moves in conjunction with a wireless warning signal providing notification of a danger approaching the work area.
G08B 25/10 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p. ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission utilisant des systèmes de transmission sans fil
A42B 3/04 - Parties constitutives, détails ou accessoires des casques
G08B 21/02 - Alarmes pour assurer la sécurité des personnes
Provided is a method of producing a glove, the method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the step of adjusting the pH to be 9 or higher using an ammonium compound or an amine compound and leaving a glove emulsion composition to stand with stirring; (3) the dipping step of immersing the glove forming mold, to which the coagulant has thus adhered in the step (1), in the glove emulsion composition; (4) the gelling step of leaving the glove forming mold, to which the glove emulsion composition has thus adhered, to stand at a temperature for a period that satisfy specific conditions; (5) the leaching step of removing impurities from a cured film precursor thus formed on the glove forming mold; (6) the beading step of, after the leaching step, winding the cuff portion of the resulting glove; (7) the precuring step of heating and drying the cured film precursor that has been subjected to the beading step; and (8) the curing step of heating the cured film precursor at a specific temperature for a specific period to obtain a cured film.
C08J 3/03 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans un milieux aqueux
30.
GLOVE, DIP FORMING COMPOSITION AND GLOVE MANUFACTURING METHOD
Provided is a glove comprising a cured elastomer film including, in a polymer backbone, (meth)acrylonitrile-derived structural units, unsaturated carboxylic acid-derived structural units, and butadiene-derived structural units, wherein the elastomer contains 20-40 wt% (meth)acrylonitrile-derived structural units, 1-10 wt% unsaturated carboxylic acid-derived structural units, and 50-75 wt% butadiene-derived structural units, and has a crosslinked structure between carboxyl groups in the unsaturated carboxylic acid-derived structural units and an epoxy crosslinking agent containing an epoxy compound comprising 3 or more epoxy groups per molecule.
Provided is: A glove dipping composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain; a polycarbodiimide; zinc oxide and/or an aluminum complex; water; and at least one pH modifier selected from an ammonium compound and an amine compound, in which glove dipping composition the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in its molecular structure and has an average polymerization degree of 3.8 or higher and a carbodiimide equivalent of 260 to 600; the polycarbodiimide is added in an amount of 0.1 to 4.0% by weight and zinc oxide and/or the aluminum complex is/are added in an amount of 0.1 to 5.6% by weight with respect to the total solid content of the glove dipping composition; and the glove dipping composition has a pH of 9.0 to 11.5.
C08L 33/20 - Homopolymères ou copolymères de l'acrylonitrile
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
C08F 220/46 - Acrylonitrile avec des acides carboxyliques, des acides sulfoniques ou leurs sels
C08F 236/12 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des nitriles
C08F 265/08 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères de nitriles
B29C 41/00 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet
This disclosure is related to trousers with a waist protection belt. The trousers include the waist protection belt that is detachably attached to a belt cloth of the trousers, a trouser body that includes a stretchable cloth at a position corresponding to a waist part of a back body part of the trousers, and a position adjusting part that is provided at substantially a center of the waist protection belt and is provided at a position on a back surface of the belt cloth corresponding to the waist part of the trouser body. The position adjusting part is configured to adjustably change an attachment position of the waist protection belt in a vertical direction with respect to the trouser body.
A41D 13/05 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs protégeant uniquement une partie particulière du corps
Provided is a glove dipping composition that at least includes an elastomer that includes a structural unit derived from (meth)acrylonitrile, a structural unit derived from unsaturated carboxylic acid, and a structural unit derived from butadiene in a polymer main chain in a specific range, a polycarbodiimide, zinc oxide and/or an aluminum complex, water, and one or more pH adjusting agents selected from ammonium compounds and amino compounds, wherein the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in the molecular structure, the average degree of polymerization of the polycarbodiimide is 3.8 or greater, the polycarbodiimide equivalent weight is 260 – 600, the amount of the polycarbodiimide added is 0.1 – 4.0 wt% of the total weight of solid components in the glove dipping composition, the amount of zinc oxide and/or aluminum complex added is 0.1 – 5.6 wt%, and pH of the glove dipping composition is 9.0 – 11.5.
Provided is a method of manufacturing gloves, the method comprising: (1) a step for immersing a glove form in a liquid solidifying agent containing calcium ions so that the solidifying agent adheres to the glove form; (2) a step for adjusting pH to at least 9 using an ammonium compound or an amine compound, and allowing an emulsion composition for gloves to stand while being agitated; (3) a dipping step in which the glove form to which the solidifying agent was adhered in step (1) is immersed in the emulsion composition for gloves; (4) a gelling step in which the glove form to which the emulsion composition for gloves has been adhered is allowed to stand at a temperature and for a length of time satisfying specific conditions; (5) a leaching step for removing impurities from a cured film precursor formed on the glove form; (6) a beading step for forming a bead on a cuff part of the glove after the leaching step; (7) a precuring step for heating and drying the cured film precursor that has passed through the beading step; and (8) a curing step for heating the cured film precursor at a specific temperature and for a specific length of time to obtain a cured film.
An earplug 1 describing the shape of an artillery shell is equipped with an earplug main body 11 comprising an elastic foamed plastic material and three grooves 12, 13, and 14 provided in a helical shape on the outer peripheral surface of the earplug main body 11.
A glove in which the polymer main chain includes a structural unit derived from acrylonitrile, a structural unit derived from an unsaturated carboxylic acid, a structural unit derived from butadiene, and a structural unit derived from a self-crosslinking compound or from an organic crosslinking agent and in which a sulfur-free crosslinked structure has been formed.
The pants (1) with a waist protection belt are provided with: a waist protection belt (31), (310) detachably attached to a belt cloth (10) portion of the pants (1); and a pants main body (1a) having a stretchable cloth (15) at a position corresponding to a waist section of a back piece (3). A position adjustment part (71) for adjusting the attachment position in a height direction relative to the pants main body (1a) is provided at a substantially center portion of the waist protection belt (31), (310) and a belt cloth portion corresponding thereto and located on the back side of the waist section of the pants main body (1a).
A41D 13/05 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs protégeant uniquement une partie particulière du corps
A warp knitting machine is used to obtain an nonslip knitted glove having better workability than prior-art knitted gloves produced with a fully automatic glove knitting machine, or knitted gloves sewn from a thin fabric. In this nonslip knitted glove, an elastomer or resin coating is formed on the complete surface layer or a partial surface layer of a knitted glove that is knitted using a warp knitting machine to form a front and rear base fabric into a cylindrical shape with finger sections, a main section, and a sleeve opening, and to knit closed each side edge section and the tip end section of each finger sack section.
The present invention reduces the minimum detectable volume of a piece of a glove in the detection using a metal detector. A glove made of a rubber or resin film which contains magnetic particles, wherein the quantity of the magnetic particles is 0.2 to less than 40 mass % relative to the whole of the film; and the magnetic particles comprise secondary particles formed by the agglomeration of primary particles.
The present invention efficiently collects the oil content of a gas using a rotary brush body. A collection unit 20, comprising a rotary brush body 21 and a back panel 22. The rotary brush body 21 has a large number of radially oriented linear materials 21b arranged in a tight, brush-form configuration, around a disc part 21a. The back panel 22 behind the rotary brush body 21 has window parts 22a at positions corresponding to the linear materials 21b. Partition frames 22b are provided to the window parts 22a. When the oil-containing gas is passed through the linear materials 21b and the window parts 22a of the back panel 22 from the front surface towards the back surface of the rotary brush body 21, the oil content collides with the linear materials 21b, adheres thereto, and becomes captured. Although the back panel 22 has the window parts 22a provided at positions corresponding to the linear materials 21b, the presence of the partition frames 22b prevents the linear materials 21b from collapsing rearwards beyond what is necessary, unraveling, and reducing the collection efficiency.
B01D 45/08 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge par inertie par projection contre les diaphragmes séparateurs
B01D 46/10 - Séparateurs de particules utilisant des plaques, des feuilles ou des tampons filtrants à surface plane, p. ex. appareils de précipitation de poussières
B01D 46/28 - Séparateurs de particules utilisant des brosses filtrantes, p. ex. appareils de précipitation de poussières
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
41.
HIGH-VOLTAGE POWER SOURCE DEVICE FOR ELECTRIC DUST COLLECTOR
A high-voltage power source device for an electric dust collector in which an output voltage V and an output current I outputted to an ionizer I and a collector II are detected, and an output voltage signal S1 representing the output voltage V and an output current signal S2 representing the output current I are supplied to a CPU 9, whereby the CPU 9 performs duty control for PWM control using a conversion device, wherein: the CPU 9 acquires the output voltage signal S1 or the output current signal S2 and immediately ceases output of the output voltage V by minimizing the duty of the PWM control when a discharge spark caused by a decrease in the output voltage V is detected; and after a prescribed cessation time elapses, the CPU 9 performs a control so that the voltage increase speed of the output voltage V is set to a moderately increasing curve that is set on the basis of the split ratio of the duty and the sampling speed at which the output voltage signal S1 or the output current signal S2 is acquired.
In the present invention, an output voltage V and an output current I are detected for loads I, II, and the detected output voltage V and output current I are supplied to a main control device 5, whereby duty control for the PWM control of a separately excited conversion device is performed by the CPU 9 of the main control device 5. In the CPU 9, a two-dimensional relationship of the output voltage V and the output current I is indicated, and a native characteristic curve is used that intersects with the desired two-dimensional output characteristics and indicates the two-dimensional relationship of the output voltage V and the output current I when the duty is fixed at a constant; the detected output voltage V and output current I are substituted in an attractor function R that is uniquely determined from the shape of the two-dimensional output characteristics; and the duty for the PWM control is raised and lowered at regular time intervals in such a direction as to converge with the attractor function R, on the basis of the positive or negative sign of the attractor function when the difference is taken between the output voltage V at the corresponding attractor function R and a prescribed standard voltage V0, and when the difference is taken between the output current I at the corresponding attractor function R and a prescribed standard current I0.
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
An emulsion composition including at least water and an elastomer in which structural units derived from acrylonitrile, structural units derived from an unsaturated carboxylic acid, structural units derived from butadiene, and structural units derived from a self-crosslinking compound are included in a polymer main chain thereof, and a non-sulfur-based crosslinked structure is formed, the emulsion composition wherein the crosslinked structure includes a crosslinked structure formed by the self-crosslinking compound, and a crosslinked structure formed by a crosslinking agent, and the crosslinking agent is a non-polymerizable polyfunctional organic compound.
The present invention is equipped with: a main body frame (10) that is mounted to the head; and a shield frame (20) that is disposed outside the main body frame (10) and that holds a shield (S) that protects all or part of the face of the wearer. The main body frame (10) is equipped with: a bridge arm (11) that extends from the front of the head across the sides of the head to the rear of the head at both sides; a first support unit (11a) that is provided to both sides of the bridge arm (11) and that supports the rear of the head; a pair of head arms (12) that branch in the direction of the front of the head from the portions (11b) of the bridge arm (11) corresponding to the sides of the head and that are disposed at the inside of the bridge arm (11); second support units (12a) that support the front of the head and are provided to the respective tips of the head arms (12). The portion of the first support unit (11a) corresponding to the front of the head is disposed separated from the front of the head, resulting in a first pressing force adjustment section (15) that adjusts the pressing force to the rear of the head by the first support unit (11a), and the head arms (12) are a second pressing force adjustment section (16) that adjusts the pressing force to the front of the head by the second support unit (12a).
An article coated with an antifogging coating, having an antifogging coating film for polyurethane resin compositions having an (AB) n-type multi-block copolymer basic structure comprising a diisocyanate component (A) indicated by chemical formula (1) and a branched diol component and/or a straight-chain diol component, as a diol component (B), said antifogging coating film being formed upon, as a polycyclohexylenedimethylene terephthalate copolyester resin, a poly (1, 4-cyclohexylenedimethylene terephthalate) copolyester resin base material including a terephthalic acid (TPA) or dimethyl teraphthlate (DMA) residue, a 1,4-cyclohexane dimethanol (CHDM) residue, and a 2,2-4, 4-tetramethyl-1, 3-cyclobutanediol (TMCD) residue.
In the present invention, a combination of knitting machine settings and the elasticity of a used yarn is devised, whereby a knitted glove is knitted, by a 15-gauge knitting machine or a 13-gauge knitting machine, using a yarn having an appropriate total denier number for a 18-gauge knitting machine. A working knitted glove, wherein the yarn used in knitting the knitted glove has the elasticity of a yarn that conforms to (1) a set gauge number for a knitting machine of gauge 13 or gauge 15, and (2) an appropriate denier number for the used yarn which is 100-200 deniers.
An emulsion composition comprising: (1) a carboxylated acrylonitrile butadiene elastomer including an acrylonitrile residue in the amount of 23-30 wt%, and an unsaturated carboxylic acid residue in the amount of 3-8 wt%; and (2) a polyacrylonitrile butadiene elastomer including an acrylonitrile residue in the amount of 20-50 wt%, with a (styrene-converted) weight-average molecular weight of 7,000-50,000. The weight ratio of component (1) / component (2) is 70/30 to 90/10.
The present invention reduces the minimum detectable volume of a piece of a glove in the detection using a metal detector. A glove made of a rubber or resin film which contains magnetic particles, wherein the quantity of the magnetic particles is 0.2 to less than 40 mass% relative to the whole of the film; and the magnetic particles comprise secondary particles formed by the agglomeration of primary particles.
Provided is a resin composition having weather resistance and low-temperature impact resistance, which are the problems of a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin, and sustaining the chemical resistance and room-temperature impact resistance of poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin. It is a resin composition containing a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin and a polycarbonate resin, in which the poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin is contained at 60 to 95% by weight and the polycarbonate resin is contained at 5 to 40% by weight.
C08L 67/02 - Polyesters dérivés des acides dicarboxyliques et des composés dihydroxylés
C08L 69/00 - Compositions contenant des polycarbonatesCompositions contenant des dérivés des polycarbonates
B32B 15/09 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétique comprenant des polyesters
B29C 45/18 - Alimentation en matière à mouler de l'appareil de moulage par injection
A42B 3/06 - Calottes amortissant les chocs, p. ex. des casques anticollision
Coveralls having first gusset materials (21) extending from the sides of the body (7) to the lower sections of the sleeves (9) and second gusset materials (23) extending from the sides of the body to the lower sections of the sleeves parallel to the first gusset materials.
An emulsion composition for producing a glove, which contains an elastomer (1) and a poly(acrylonitrile butadiene) (2) at a component (1)/component (2) ratio of 70/30 to 90/10 by weight, wherein the elastomer (1) is a carboxylated acrylonitrile butadiene elastomer, contains an acrylonitrile residue and an unsaturated carboxylic acid residue in amounts of 30 to 40 wt% and 3 to 8 wt%, respectively, relative to the weight of the elastomer, has such a property that the content of sulfur element capable of being detected by a neutralization titration method in a burned product of the elastomer is 1 wt% or less relative to the weight of the elastomer, and has a Mooney viscosity (ML(1+4) (100˚C)) of 100 to 220, and wherein the poly(acrylonitrile butadiene) (2) has a weight average molecular weight of 7,000 to 500,000 in terms of styrene; and a glove which comprises the emulsion composition and therefore has excellent chemical resistance and flexibility.
C08L 13/00 - Compositions contenant des caoutchoucs possédant des groupes carboxyliques
52.
Transparent resin composition having good chemical resistance, durability and stability under natural environmental conditions, harsher natural environmental conditions, and similar or harsher usage conditions, and product using same
The invention provides a transparent resin composition which is stable and has weather resistance and chemical resistance under natural environmental conditions, under harsher natural environmental conditions, and under similar or harsher usage conditions, the composition comprising a polycyclohexylene dimethylene terephthalate copolyester, and further comprising an ultraviolet absorber composed of a benzoxazinone-based compound and/or a hydrolysis inhibitor composed of a carbodiimide; a transparent resin composition which is stable and has weather resistance and chemical resistance under even harsher usage conditions; and a transparent resin composition which is stable and has weather resistance and chemical resistance under the above conditions, the composition further comprising an antioxidant and a heat-resistant material. These transparent resin compositions can be used for helmets, face shields for helmets, lenses for spectacles, outer cases for storing items, sheet materials for outdoor installation, and frames and temples for spectacles.
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
C08K 5/29 - Composés contenant des liaisons doubles carbone-azote
A structure of a toe cap and a shoe having the toe cap embedded which does not disturb foot movement such as walking while protecting a toe against lateral collision with an object such as a wheel of a dolly includes a cup-shaped shell body which is formed by connecting a front end wall, bilateral side walls and an upper face wall with a gentle curved face, and an extension side wall disposed at least to one side wall as rearwardly extending a rear end edge of the side wall. The shoe having the toe cap embedded can sufficiently protect the toe even when an impact is applied from the outer side (i.e., the little toe) direction of the toe of which protection is not sufficient with a normal toe cap embedded shoe.
A work-image monitoring system includes a camera server (11) fitted on a worker (P), a mobile router (12) capable of performing data communication with the camera server (11), and a monitoring computer (13) that communicates with the mobile router (12) through a communication means. The camera server (11) has a fixed IP and includes a storage section (116) that stores an image captured by a camera (21) and a communication section (117) that communicates with the mobile router. The mobile router (12) includes a communication section (124) that communicates with the camera server (11) and a communication section (125) that communicates with the monitoring computer (13). The monitoring computer (13) includes a communication section (137) that communicates with the mobile router (12) and a display section (132) that displays an image sent from the camera server (11).
(1+4)(100° C.)) of the crosslinked product is 100-220, wherein thin film gloves composed of said elastomer does not contain sulfur which is a crosslinking agent and sulfur composition which is a vulcanization accelerator, thickness is 0.05-0.15 mm, gloves swelling ratio at gloves formation is 240-320, tensile stress is 22-35 MPa, elongation to break is 480-620% and tensile stress at 500% elongation is 15-35 MPa.
(1+4)(100° C.) of 100-220, that contains 25-30 weight % of acrylonitrile, 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid, and does not contain sulfur crosslinking agents or vulcanization accelerators. The unsaturated carboxylic acid comprises a first fraction of substituents and a second fraction of substituents, the first fraction of substituents forming cross-links via bonds with each other, and the second fraction of substituents forming cross-links via bonds with a bivalent metal. Glove properties include thickness 0.05-0.15 mm, swelling ratio 240-320, tensile stress 22-35 MPa, elongation to break 480-620%, and tensile stress at 500% elongation 15-35 MPa. By chlorine treatment of both inner and outer surfaces of the glove, the inner surface has decreased tackiness and the outer surface has increased smoothness. Content of metal and metallic salt impurities and an anion contained in the glove is decreased.
C08F 236/14 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées contenant des éléments autres que le carbone et l'hydrogène
Provided is a resin composition having the properties of possessing weather resistance and low-temperature impact resistance, which are problematic for poly(1,4-cyclohexylenedimethylene terephthalate) copolyester resin, and of sustaining the chemical resistance and room-temperature impact resistance of poly(1,4-cyclohexylenedimethylene terephthalate) copolyester resin. A resin composition, including poly(1,4-cyclohexylenedimethylene terephthalate) copolyester resin and polycarbonate resin, the poly(1,4-cyclohexylenedimethylene terephthalate) copolyester resin being included at 60-95 wt% and the polycarbonate resin being included at 5-40 wt%.
[Abstract] [Problem] To provide a sewing machine capable of sewing a serpentine zigzag stitch on a cylindrical item to be sewn. [Solution] A sewing machine (1) has: a substantially cylindrical guide member (11) for guiding an item (A) to be sewn; a sewing needle (99) for sewing the cylindrical item (A) to be sewn; a support member (71) for supporting the sewing needle (99) in a substantially perpendicular state; a vertical shuttle (21) for hooking the looped needle thread from the sewing needle (99), and positioned inside the guide member (11) in a manner such that the rotating direction thereof is substantially perpendicular to the axial direction (C) of the guide member (11); a rotating shaft (22) for rotating the vertical shuttle (21); an action means (50) for causing the support member (71) and the rotating shaft (22) to substantially simultaneously move back and forth; and a feed roller (183) for feeding the item (A) to be sewn that is positioned on the guide member (11) in a direction opposite the direction of sewing. The feed roller (183) is attached so as to be movable in the axial direction (D) of a rotatable shaft (173). [Selected figure] Fig. 2
D05B 27/14 - Moyens d'entraînement de l'ouvrage pour machines à coudre avec organes d'entraînement rotatifs et circulaires rotatifs discontinus
A61F 2/04 - Éléments ou organes creux ou tubulaires, p. ex. vessies, trachées, bronches ou voies biliaires
D05B 3/02 - Appareils ou machines à coudre possédant un mécanisme permettant le mouvement latéral de l'aiguille ou de l'ouvrage ou les deux combinés, pour faire des coutures ornementales d'après un tracé, pour les boutonnières, pour renforcer les ouvertures ou pour fixer certains articles, p. ex. boutons, par piquage avec des mécanismes assurant le mouvement de la barre à aiguille
D05B 3/04 - Appareils ou machines à coudre possédant un mécanisme permettant le mouvement latéral de l'aiguille ou de l'ouvrage ou les deux combinés, pour faire des coutures ornementales d'après un tracé, pour les boutonnières, pour renforcer les ouvertures ou pour fixer certains articles, p. ex. boutons, par piquage avec des mécanismes assurant l'entraînement de l'ouvrage
D05B 29/08 - Pieds presseurs (pieds de biche) constitués de pièces relativement mobiles
D05B 73/06 - Carters inférieurs pour machines à coudre du type à bras libre
A composition for producing an elastomeric thin film comprising a carboxylated acrylonitrile polybutadiene latex which is vulcanized without the use of conventional sulphur and accelerators thereby reducing the possibility of contacting immediate Type I hypersensitivity and delay Type IV hypersensitivity caused by the presence of natural rubber latex proteins and accelerators respectively. The dipping process for making gloves by using a latex composition provided by: premixing carboxylated acrylonitrile polybutadiene latex with methacrylic acid, or alternatively using a self-crosslinked latex, adding zinc oxide, adjusted to 9 to 10 of the pH level, and diluted with water to obtain 18% to 30% by weight of total solid content; dipping the glove former into the composition to form a layer of thin film of the latex composition on the former; drying the thin latex film on the former and crosslinking the latex film on the former.
C08J 5/02 - Traitement direct des dispersions, p. ex. du latex, pour produire des objets
62.
TRANSPARENT RESIN COMPOSITION HAVING GOOD CHEMICAL RESISTANCE, DURABILITY AND STABILITY UNDER NATURAL ENVIRONMENTAL CONDITIONS, HARSHER NATURAL ENVIRONMENTAL CONDITIONS, AND SIMILAR OR HARSHER USAGE CONDITIONS, AND PRODUCT USING SAME
The invention provides a transparent resin composition having chemical resistance, weather resistance, and stability under natural environmental conditions, harsher natural environmental conditions, and similar or harsher usage conditions, characterized in that the following is added to a polycyclohexylene dimethylene terephthalate copolyester: an ultraviolet absorber comprising a benzoxazinone-based compound; a hydrolysis inhibitor comprising carbodiimide; or an ultraviolet absorber comprising a benzoxazinone-based compound and a hydrolysis inhibitor comprising carbodiimide. The invention also provides a transparent resin composition having chemical resistance, weather resistance, and stability under even harsher usage conditions. The invention further provides a transparent resin composition having chemical resistance, weather resistance, and stability under natural environmental conditions, harsher natural environmental conditions, and similar or harsher usage conditions, characterized by further including an oxidation inhibitor and a heat-resistant material. These transparent resin compositions can be used for helmets, helmet face shields, spectacle lenses, outside storage boxes, frames for outdoor board spectacles, and spectacle temples.
C08L 67/03 - Les acides dicarboxyliques et les composés dihydroxylés ayant les groupes hydroxy et carboxyliques liés directement à des cycles aromatiques
C08L 67/02 - Polyesters dérivés des acides dicarboxyliques et des composés dihydroxylés
G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
Glasses (1) in which a temple (3) is provided at a wraparound endpiece (2) of a front frame (10), wherein the glasses have an intermediate (5) that is made of an elastic material that is elastically deformed more easily than the wraparound endpiece (2) and the temple (3), and that is provided between the wraparound endpiece (2) and the temple (3) by connecting one end of the intermediate to the wraparound endpiece (2) and the other end to the temple (3).
This method includes: supporting a mother roll (10) in a state in which there is virtually no resistance to rotation; applying a frictional force to a belt-shaped object (42) that contacts rotating drive rollers (30 and 31); supplying the belt-shaped object (42) from the mother roll (10) to one of the drive rollers (30) via said frictional force alone; moving the belt-shaped object (42) so as to follow the rotation of said drive roller (30); causing the belt-shaped object (42) to roll up on the surfaces of the drive rollers (30 and 31) via only the torque produced by the rotation of the drive rollers (30 and 31); winding the belt-shaped object (42) into a wound body (40) via the aforementioned rolling-up motion; and supporting the wound body (40), by means of the drive rollers (30 and 31), in a state in which there is virtually no resistance to rotation. The belt-shaped object (42) is wound under virtually no tension. The belt-shaped object (42) is a knitted fabric for wiping off ink adhered to the surface of an inkjet nozzle.
B65H 18/20 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la bobine, p. ex. pour faire avancer la bande d'un mouvement continu la bobine étant portée sur deux rouleaux parallèles dont l'un au moins est entraîné
B65H 18/16 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la bobine, p. ex. pour faire avancer la bande d'un mouvement continu par un rouleau de friction
B65H 18/22 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la bobine, p. ex. pour faire avancer la bande d'un mouvement continu par un ruban de friction
Provided is a structure for toe boxes that protect toes from objects that impact from the side such as the wheel of a pushcart without impeding foot movements such as walking, and for shoes that incorporate said toe box. The toe box (1) that covers the front of the foot when incorporated into the toe of a shoe is characterized: in having a bowl-shaped shell formed so that the front wall (2), left and right side walls (3, 4) and upper wall (5) are connected by smooth curves; and in an extended side wall (7) being provided on at least one side wall, which extends the rear edge (17) of said side wall rearward. Shoes in which said toe box has been incorporated are able to protect toes adequately even when being impacted from the outside (little toe side) of the toes for which protection is inadequate with conventional work shoes having incorporated toe boxes.
Trousers (1) in which an area that extends from the lumbar region (7) corresponding to the lumbar of a wearer, through the outer region of a crotch area (11) corresponding to the outside of the hip joint, to a an inner region in the knee vicinity (15) that is near the knees and corresponds to the insides of the thighs, is constituted by a helical elastic member of a prescribed width.
Provided is a glove comprising 25-30 wt% acrylonitrile, 62-71 wt% butadiene, and 4-8 wt% unsaturated carboxylic acid (100 wt% in total) and formed from an elastomer cross-linked by a bond comprising at least some substituent groups containing unsaturated carboxylic acid, with the remainder of the at least some substituent groups containing unsaturated carboxylic acid cross-linked by a bivalent metal. The glove does not contain sulfur, which is a crosslinking agent, or a sulfur compound, which is a vulcanization accelerator. The Mooney viscosity (ML (1+4)(100°C)) of the elastomer cross-linked by a bond comprising at least some substituent groups containing unsaturated carboxylic acid is 100-220. The glove is characterized by: the thin-film elastomer glove not containing sulfur as a crosslinking agent or a sulfur compound as a vulcanization accelerator and having a thickness of 0.05-0.15 mm; the glove swelling ratio being 240-320 when the glove is formed; the tensile stress being 22-35 MPa; the elongation at break being 480-620%; the tensile stress at elongation of 500% being 15-35 MPa; the surface of the glove that comes in contact with a user being free of adhesiveness while the surface that comes in contact with substances during work being smooth; metal and metal salt impurities being eluted; and the amount of metal, metal salt, and anions contained therein being reduced.
The elastomer glove is a glove formed of an elastomer obtained from 25-30 weight% of acrylonitrile, 62-71 weight% of butadiene and 4-8 weight% of unsaturated carboxylic acid (100 weight% total) and cross-linked by bonds resulting from at least a portion of the substituting groups of the unsaturated carboxylic acid, with the remainder of the substituting groups of the portion of the substituting groups of the unsaturated carboxylic acid being cross-linked by divalent metals; and is characterized in not containing sulfur cross-linking agent or sulfur compound vulcanization accelerator; the Mooney viscosity (ML(1+4)(100°C)) of the elastomer cross-linked by bonds resulting from at least a portion of the substituting groups of the unsaturated carboxylic acid being 100-220; and for glove properties, the thin-walled elastomer glove not containing sulfur cross-linking agent or sulfur compound vulcanization accelerator, thickness being 0.05-0.15 mm, glove swelling rate during glove molding being 240-320%, tensile stress being 22-35 MPa, elongation at rupture being 480-620%, and tensile stress at 500% elongation being 15-35 MPa.
[Problem] To provide a device for cutting an article being stitched by a sewing machine, which can cut from any position on the article being stitched regardless of whether or not stitching is present. [Solution] A device (20) for cutting an article being stitched by a sewing machine comprises a fixed frame (41) attached to a sewing machine main body (21b), and a mobile frame (42) which is movably attached to the fixed frame (41). A rotary blade (34) is rotatably provided on the mobile frame (42). The fixed frame (41) is provided with a drive means (37) for driving the rotary blade (34) by way of a power transmission part (36), and an operation means (43) for operating the mobile frame (42) in such a way that the rotary blade (34) is moved from a position (P1) of not cutting the article being stitched to a position (P2) of cutting the article being stitched. A throat plate (32) provided on a bed part (22) side where the sewing machine main body (21b) is fixed is provided with a fixed blade (38) which cooperates with the rotary blade (34) in order to cut the article being stitched.
A shield plate (5) is provided with a transparent main body section (11) formed in a curved plate shape, and an overhang section (17) projecting curved in the opposite direction of the main body section (11) at the lower part thereof. The main body section (11) is formed in a convex shell shape in the front-facing direction with the vertical dimension becoming longer at the horizontally central section and gradually smaller leading towards the end sections. The angle of intersection between an opening plane (PL) of a helmet body (3) and the overhang section (17) is at least 45°and less than 90°. The length of the protrusion in the central section of the overhang section (17) is 10mm-80mm, and becomes longer at the horizontally central section and gradually smaller towards the end sections.
Disclosed is a two-needle sewing machine that improves strength in a convex curve part by bringing a pair of stitches close together when sewing an item to be sewed that comprises the convex curve part. A two-needle sewing machine (1) comprises a bed part (3); a column part (5); an arm part (6); a needle shaft (11) that is disposed on the leading part of the arm part (6); two sewing needles (13, 14) that are attached to the needle shaft (11); two horizontal rotary hooks (15, 16) that catch the respective needle thread loops of the two sewing needles (13, 14); and a conveyor member (21) that conveys a material to be sewed (40) in a direction approximately orthogonal to the bed part (3). On the two-needle sewing machine (1), the sewing needle (13), which is positioned in a location further from the column part (5), is disposed closer to the conveyance side of the material to be sewed (40) than the sewing needle (14) that is positioned in a location closer to the column part (5).
FALL PREVENTION SYSTEM, MULTIPLE-RING MEMBER, 8-SHAPED RING MEMBER, FOUR-HOLE MEMBER, METHOD FOR WORKING ON ROOF, MAIN ROPE INSTALLATION METHOD, BUCKET FOR FALL PREVENTION SYSTEM, AND HOOK FOR ROOF VERGE
A fall prevention system (101) is provided with a main rope (103) installed so as to extend from near the ground surface (GL) on one side of a house (109) over the roof (113) of the house (109), the roof (113) including the ridge (111), to near the ground surface (GL) on the other side of the house (109); a weight (105) composed of a bucket, connected to an end of the main rope (103), and installed on the ground surface; and a retractor-type fall prevention device (107) for connecting to the main rope (103) a harness (139) worn by a worker (50) working on the roof (113).
A62B 35/00 - Ceintures ou harnais de sécuritéÉquipements similaires pour limiter le déplacement du corps humain, notamment en cas de changement brusque de mouvement
E04G 21/32 - Mesures de sécurité ou de protection pour les personnes pendant la construction des bâtiments
In a protective cap housing a shield member for covering almost all of a face of a wearer in the interior of a cap body, the protective cap capable of retracting the shield member in the interior of the cap body is provided. It is a protective cap 1 having a cap body 3 formed in a semi-spherical-shell-like form for protecting a head of a wearer, a shield member 5 for protecting almost all of a face of the wearer, and guide means 7 for guiding the shield member 5 to move along a curved surface of the cap body 3 between a housing position P1 to be housed in the cap body 3 and a shielding position P3 for covering almost all of the face of the wearer.
Grooves (18) are formed in the inner surfaces of two rims (11), and a part of the inner side of each of the grooves (18) is formed as a cutout section. Lenses (13) are removed from the rims (11) while avoiding the interference between a stopper member (12), which is pivotably provided to a bridge (16), and inner regions (P4) of the rims (11) by pivoting downward the stopper member (12). Then, new lenses (13) are inserted from the inner regions (P4). After that, the stopper member (12) is rotated upward and affixed to the bridge (16). As a result, the stopper member (12) interferes with the inner region (P4) of each of the rims (11) to firmly affix the lenses (13) within the rims (11).
The present invention provides a sewing machine that can perform zigzag sewing a cylindrical sewn article.
A sewing machine 1 includes an approximately cylindrical guide member 11 that guides a sewn article A, a sewing needle 99 that sews the cylindrical sewn article A, a holding member 71 that holds the sewing needle 99 approximately vertically, a vertical hook 21 provided in the guide member 11 so that the direction of rotation is approximately perpendicular to the axial direction C of the guide member 11 and that catches the upper thread loop of the sewing needle 99, a rotary shaft 22 that rotates the vertical hook 21, and an operating means 50 that moves the holding member 71 and the rotary shaft 22 reciprocatingly at approximately the same time.
A protective headwear configured so that a shield member for covering substantially the entire part of the face of the wearer is stowed within a headwear body, wherein the shield member can be stowed within the headwear body so as not be a hindrance to the wearer. A protective headwear (1) provided with: a headwear body (3) formed in a hemispherical shell shape and protecting the head of the wearer; a shield member (5) for protecting substantially the entire part of the face of the wearer; and a guide means (7) for guiding the shield member (5) so that the shield member (5) moves along the curved surface of the headwear body (3) between a stowed position (P1) at which the shield member (5) is stowed within the headwear body (3) and a covering position (P3) at which the shield member (5) covers substantially the entire part of the face of the wearer.
A shield member for covering the face of the wearer and a protective headwear to which the shield member is mounted, wherein, even through the peripheral portion of the shield member, the wearer can view an object with distortion of the image of the object minimized as much as possible. A shield member (5) mounted to a headwear body (3) which protects the head of the wearer and covering the face of the wearer, wherein the shield member (5) is formed in a curved plate-like shape using a transparent body or a half-transparent body and has a thickness gradually reduced from the center toward the periphery of the shield member.
An electric dust colleting apparatus is provided with a charging section (414) which charges particles in the air, a dust collecting section (416) which captures particles charged by the charging section, and a neutralizing section (404) which neutralizes the charged particles passed through the dust collecting section. The charging section (414) is provided with a plurality of discharge wires (418) arranged in parallel on a surface orthogonally intersecting with the air flow direction, and board-like first counter electrodes (420) arranged at a predetermined interval at facing positions on the surfaces orthogonally intersecting with the air flow direction with the discharge wires (418) therebetween. The neutralizing section (404) is provided with a neutralizing electrode (426) which generates ion shower of both polarities in a space in the neutralizing section (404), and a masking plate (417) which regulates the air flow so that the charged particles passed through the dust collecting section (416) pass through the space filled with the ion shower in the neutralizing section.
Disclosed is an illumination band that lights light-emitting elements at night and, even when the light-emitting elements go out, receives light from external sources and makes the entire surface of the band body bright to notify third parties of the wearer's position and presence. An illumination band (1) is composed of a long and thin strip-shaped band body (2), light-emitting elements (11) arranged at predetermined intervals on the surface (2a) of the band body (2), and a conductive part provided on the band body (2) and connected to each light-emitting element (11). The surface (2a) of the band body (2) is provided with a fluorescent member, a reflective member, or a noctilucent (phosphorescent) member.
Provided is a sewing machine that can perform zigzag sewing on a cylindrical sewn article. Sewing machine (1) comprises an approximately cylindrical guide member (11) that guides sewn article (A), a sewing needle (99) that sews the cylindrical sewn article (A), a holding member (71) that holds the sewing needle (99) approximately vertically, a vertical hook (21) provided in the guide member (11) so that the direction of rotation is approximately perpendicular to the axial direction (C) of the guide member (11) and that catches the thread loop of the sewing needle (99), a rotary shaft (22) that rotates the vertical hook (21), and an operating means (50) that moves the holding member (71) and the rotary shaft (22) reciprocatingly at approximately the same time.
D05B 3/02 - Appareils ou machines à coudre possédant un mécanisme permettant le mouvement latéral de l'aiguille ou de l'ouvrage ou les deux combinés, pour faire des coutures ornementales d'après un tracé, pour les boutonnières, pour renforcer les ouvertures ou pour fixer certains articles, p. ex. boutons, par piquage avec des mécanismes assurant le mouvement de la barre à aiguille
Disclosed is a seam forming apparatus which can perform fine adjustment of the width of a seam from zero by simple manual operation. The seam forming apparatus (1) comprises a needle clamp member (2) provided at the lower portion of a needle bar (52), and two needles (3, 4) secured to the needle clamp member (2). The needle clamp member (2) comprises a fixing member (11) fixed to the needle bar (52), and a rotating member (21) which is rotatably provided on the fixing member (11) and to which the two needles (3, 4) are secured. The rotating member (21) so rotates as to change the positions of the two needles (3, 4), whereby the width of a seam formed by the two needles (3, 4) can be adjusted.
A neutralization apparatus comprises a discharge electrode generating positive or negative ions depending on the polarity of a DC high voltage being applied, a high voltage generation circuit for applying a DC high voltage to the discharge electrode, and a grounded guard electrode which shuts out a forward space for delivering the ions with an appropriate profile. The discharge electrode is constituted of 2n (n is a natural number) discharge needles divided into two groups of n discharge needles. The high voltage generation circuit applies high voltages of reverse polarity to two groups of discharge needles, respectively, and reverses the polarity every predetermined period. The neutralization apparatus is compact and lightweight and exhibits excellent attenuation time characteristics and ion balance characteristics.
A neutralizer (1) comprises a power supply circuit (11), an output control circuit (12) for outputting a high-frequency voltage whose frequency is higher than the audible frequency converted from a DC voltage generated by the power supply circuit (11) alternately to two output lines in a given cycle, a transformer circuit (13) for stepping up the high-frequency voltage, a discharge section (20) composed of 2n (n=1 or more integer) discharge needles which are used for generating positive ions by applying a positive voltage and negative ions by applying a negative voltage and are divided into a first group of n discharge needles and a second group of n discharge needles, and a polarity inverting circuit (14) for converting the high-frequency high voltage outputted from the transformer circuit (13) into two DC high rectangular voltages having different polarities for the same period, inverting the polarities of the two DC high voltages in a given cycle, and outputting the DC high voltages to the first and second groups of the discharge section (20), and a blower for sending air from the windward side of the discharge section (20).
[PROBLEMS] Anti-slip shoes etc. exhibiting high anti-slip performance against a floor surface wet with water or oil. [MEANS FOR SOLVING PROBLEMS] A sheet for a shoe bottom, where blocks with a uniform height are regularly formed on a flat plate-like base surface having a substantially uniform thickness by molding of a rubber or synthetic resin material. The ground contact surface of each block is a smooth surface without unevenness and is formed either in an oblong having two substantially parallel sides in the longitudinal direction or in a shape having, similarly to the oblong, two substantially parallel sides. At least corners forming the substantially parallel two sides and forming the boundaries between the ground contact surface and side faces are formed by corners of a recessed die formed by combining die pieces perpendicular to each other. More than 0 and not more than 30 parts by weight of silica and not more than 10 parts by weight of plasticizer are added to 100 parts by weight of the rubber or synthetic resin material.
09 - Appareils et instruments scientifiques et électriques
25 - Vêtements; chaussures; chapellerie
Produits et services
Safety footwear, footwear for protection against accidents;
footwear with safety or protective toe cap other than
special sports footwear. Shoes, footwear, including work shoes, occupational
footwear, clodhoppers, sports shoes, overshoes, boots, shoes
for cold weather, insole, outer soles.
87.
METHOD OF MANUFACTURING GLOVES, GLOVE, AND EMULSION COMPOSITION FOR GLOVES
Provided is a method of manufacturing gloves, the method comprising: (1) a step for immersing a glove form in a liquid solidifying agent containing calcium ions so that the solidifying agent adheres to the glove form; (2) a step for adjusting pH to at least 9 using an ammonium compound or an amine compound, and allowing an emulsion composition for gloves to stand while being agitated; (3) a dipping step in which the glove form to which the solidifying agent was adhered in step (1) is immersed in the emulsion composition for gloves; (4) a gelling step in which the glove form to which the emulsion composition for gloves has been adhered is allowed to stand at a temperature and for a length of time satisfying specific conditions; (5) a leaching step for removing impurities from a cured film precursor formed on the glove form; (6) a beading step for forming a bead on a cuff part of the glove after the leaching step; (7) a precuring step for heating and drying the cured film precursor that has passed through the beading step; and (8) a curing step for heating the cured film precursor at a specific temperature and for a specific length of time to obtain a cured film.
A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.
Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.
A composition for dip molding containing at least a carboxyl-group-containing nitrile rubber elastomer, an epoxy crosslinking agent that contains an epoxy compound having a parent skeleton that has three or more glycidyl ether groups per molecule and also has an alicyclic, aliphatic, or aromatic hydrocarbon, and a pH regulator, wherein: the elastomer contains 50-78 wt% (inclusive) of structural units derived from a conjugated diene monomer, 20-30 wt% (inclusive) of structural units derived from an ethylenically unsaturated nitrile monomer, and 3.5-6 wt% (inclusive) of structural units derived from an ethylenically unsaturated carboxylic acid monomer; the MEK insoluble content of the elastomer is 60-80 wt% (inclusive); and the MIBK/water distribution coefficient of the epoxy crosslinking agent is 50% or higher.
Provided is an aluminum crosslinking agent for dip molding that does not cause gelation in a dip molding composition and that has a satisfactory stability that enables use even in mass production, e.g., in glove production, wherein molded articles obtained using the aluminum crosslinking agent have a satisfactory tensile strength and fatigue resistance and are soft and stretchable. Also provided are a dip molding composition, gloves, and a method for producing gloves. The aluminum crosslinking agent for dip molding contains a polynuclear aluminum lactate compound, wherein the aluminum crosslinking agent for dip molding is characterized in that the polynuclear aluminum lactate compound has a polynuclear aluminum structure and at least one lactic acid residue; the polynuclear aluminum structure has a structure in which a plurality of aluminum atoms are polymerized with each other via a single interposed oxygen atom; the degree of polymerization here is 2-20; and the residual valences of the aluminum atoms are bonded to a lactic acid residue or a hydroxyl group. The dip molding composition, gloves, and glove production method each use the aluminum crosslinking agent for dip molding.
The pants (1) with a waist protection belt are provided with: a waist protection belt (31), (310) detachably attached to a belt cloth (10) portion of the pants (1); and a pants main body (1a) having a stretchable cloth (15) at a position corresponding to a waist section of a back piece (3). A position adjustment part (71) for adjusting the attachment position in a height direction relative to the pants main body (1a) is provided at a substantially center portion of the waist protection belt (31), (310) and a belt cloth portion corresponding thereto and located on the back side of the waist section of the pants main body (1a).
A41D 13/05 - Vêtements protecteurs de travail ou de sport, p. ex. blouses de chirurgien ou vêtements protégeant des coups ou des chocs protégeant uniquement une partie particulière du corps
Provided is: A glove dipping composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain; a polycarbodiimide; zinc oxide and/or an aluminum complex; water; and at least one pH modifier selected from an ammonium compound and an amine compound, in which glove dipping composition the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in its molecular structure and has an average polymerization degree of 3.8 or higher and a carbodiimide equivalent of 260 to 600; the polycarbodiimide is added in an amount of 0.1 to 4.0% by weight and zinc oxide and/or the aluminum complex is/are added in an amount of 0.1 to 5.6% by weight with respect to the total solid content of the glove dipping composition; and the glove dipping composition has a pH of 9.0 to 11.5.
Provided is a dip molding composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid- derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20 to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1 to 10% by weight, and the butadiene-derived structural unit in an amount of 50 to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10 to 70% as determined by a specific measurement method.
A gloves formed from elastomer comprising 25-30 weight% of acrylonitrile, 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid (total 100 weight%), wherein crosslink is formed by a bond through at least a part of substituent which is possessed by said unsaturated carboxylic acid, and residual substituent of at least one part of substituent possessed by said unsaturated carboxylic acid is crosslinked by bivalent metal, said elastomer does not contain sulfur which is a crosslinking agent and sulfur composition which is a vulcanization accelerator, Mooney viscosity (ML(1+4)(100.degree.C)) of said elastomer crosslinked by a bond of at least one part of substituent possessing said unsaturated carboxyl group is 100-220, and thin film gloves prepared from said elastomer does not contain sulfur which is a crosslinking agent and sulfur composition which is a vulcanization accelerator, and thickness of the gloves is 0.05-0.15mm, glove swelling ratio at formation of the gloves is 240-320, tensile stress of the gloves is 22-35 MPa, elongation to break of the gloves is 480-620% and tensile stress at 500% elongation of the gloves is 15-35 MPa, further, surface of the glove which contacts with a hand of a user is in a state of loosing tackiness, surface of the glove which contacts with an object at working is smooth, metal or metallic salt contained in the glove as impurities are eluted and amount of content of metal, metallic salt and anion contained in the glove is decreased.
An elastomer composition comprising, an emulsion which comprises 25-30 weight % of acrylonitrile. 62-71 weight % of butadiene and 4-8 weight % of unsaturated carboxylic acid (total 100 weight %), wherein crosslink is formed by a bond through at least a part of substituent which is possessed by said unsaturated carboxylic acid, and residual substituent of at least one part of substituent which is possessed by said unsaturated carboxylic acid is left in state of free, further Mooney viscosity (ML(1+4)(100.degree.C)) of the crosslinked product is 100-220, wherein thin film gloves composed of said elastomer does not contain sulfur which is a crosslinking agent and sulfur composition which is a vulcanization accelerator, thickness is 0.05-0.15mm, gloves swelling ratio at gloves formation is 240-320, tensile stress is 22-35 MPa, elongation to break is 480-620% and tensile stress at 500% elongation is 15-35 MPa.
The present invention provides a dip-formed article that has an excellent stress retention rate and is easily stretched and soft. The present invention provides a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2, [Expression 1] k1? + k2? + k3? ? 9.3 N/mm (1) [Expression 2] 0.55 ? k1?/(k1? + k2? + k3?) (2) wherein k1? is a value obtained by dividing an equilibrium coefficient k1 by a thickness of a test piece, and k2? and k3? are values obtained by dividing viscous coefficients k2 and k3 by the thickness of the test piece, respectively.
