Abstract: A package has a bag body, at least one mouth part member bonded to the bag body, and a contained product being a liquid housed in the bag body. The bag body is formed in a bag shape by using laminates each having a sealant layer and a water vapor barrier layer composed at least of a fluorine-based resin, and by bonding together the sealant layers opposing each other so that the sealant layers are to be located on the inside of the bag body. The mouth part member is sandwiched between the oppositely facing sealant layers and is bonded thereto. The volume V of the contained product housed in the bag body is 0.1-20 cm3, and the relation between the area S (cm2) where the bag body is in contact with the contained product housed in the bag body and the aforementioned volume V (cm3) satisfies 0.05?V/S?0.25 (formula (I)).

Abstract: A package has a bag body, at least one mouth part member bonded to the bag body, and a contained product being a liquid housed in the bag body. The bag body is formed in a bag shape by using laminates each having a sealant layer and a water vapor barrier layer composed at least of a fluorine-based resin, and by bonding together the sealant layers opposing each other so that the sealant layers are to be located on the inside of the bag body. The mouth part member is sandwiched between the oppositely facing sealant layers and is bonded thereto. The volume V of the contained product housed in the bag body is 0.1-20 cm3, and the relation between the area S (cm2) where the bag body is in contact with the contained product housed in the bag body and the aforementioned volume V (cm3) satisfies 0.05?V/S?0.25 (formula (I)).

Abstract: A plastic container has superior storage stability for pharmaceutical ingredients exhibiting a high affinity to plastic and can be mass-produced at low cost. The container has a bag body formed into a bag shape by a sheet member with a storage part on the inside thereof, and a tubular port member attached to the bag body, wherein one end of the tubular port member communicates with the storage part and an opening part of the other end is exposed outside of the bag body. The sheet member is formed from two or more layers including a base resin layer and an innermost layer formed from an amorphous polymer, as a main component, formed by polymerizing at least one type of olefin monomer, having a cyclic hydrocarbon skeleton, and the port member is formed from a resin having a crystalline polyolefin having no cyclic hydrocarbon skeleton, as a main component.

Abstract: A port-equipped bag includes a bag body formed in a bag shape with a sheet, and a cylindrical port member attached to the bag body, and an inner plug and a cap can be attached to the port member. The port member includes an attaching target portion that is covered by the cap in a case in which the cap is attached thereto and an annular lip protruding outward from the port member. The lip has an annular engagement surface facing the bag body, and the engagement surface has an angle of 45° to 135° with respect to an outer peripheral surface of the attaching target portion in a cross section in an axial direction of the attaching target portion.

Abstract: A package has a bag body, at least one mouth part member bonded to the bag body, and a contained product being a liquid housed in the bag body. The bag body is formed in a bag shape by using laminates each having a sealant layer and a water vapor barrier layer composed at least of a fluorine-based resin, and by bonding together the sealant layers opposing each other so that the sealant layers are to be located on the inside of the bag body. The mouth part member is sandwiched between the oppositely facing sealant layers and is bonded thereto. The volume V of the contained product housed in the bag body is 0.1-20 cm3, and the relation between the area S (cm2) where the bag body is in contact with the contained product housed in the bag body and the aforementioned volume V (cm3) satisfies 0.05?V/S?0.25 (formula (I)).

Abstract: A packaging bag has a bag body and an outlet joined to the bag body, in which the bag body includes, as a forming material, laminates each having at least a substrate layer, a first intermediate layer, and a sealant layer in this order, and has a bag shape formed by sticking the sealant layers to each other, the sealant layers being disposed opposite each other to define an internal side, the outlet is joined by being held between the opposite sealant layers, the first intermediate layer contains a polyethylene-based resin and a modified polyethylene-based resin, and the substrate layer includes a layer containing a fluorine-based resin as a forming material.

Abstract: Provided are a light-shielding sheet that has a function of shielding light of a specific wavelength and that is capable of preventing a light-shielding substance from being transferred into the contents and seeping out of a container and a container produced using the light-shielding sheet. This light-shielding sheet of the present invention has a multilayer structure of three or more layers including at least one light-shielding layer that shields a specific wavelength and/or eluate-blocking layer that blocks substances eluted from the light-shielding layer. When producing a container from the light-shielding sheet, an eluate-blocking layer A is provided at least between the light-shielding layer and an innermost layer or on the innermost layer, and an eluate-blocking layer B is provided between the light-shielding layer and an outermost layer or on the outermost layer. The light-shielding layer may further double as an eluate-blocking layer.

Abstract: Provided are a light-shielding sheet that has a function of shielding light of a specific wavelength and that is capable of preventing a light-shielding substance from being transferred into the contents and seeping out of a container and a container produced using the light-shielding sheet. This light-shielding sheet of the present invention has a multilayer structure of three or more layers including at least one light-shielding layer that shields a specific wavelength and/or eluate-blocking layer that blocks substances eluted from the light-shielding layer. When producing a container from the light-shielding sheet, an eluate-blocking layer A is provided at least between the light-shielding layer and an innermost layer or on the innermost layer, and an eluate-blocking layer B is provided between the light-shielding layer and an outermost layer or on the outermost layer. The light-shielding layer may further double as an eluate-blocking layer.

Abstract: An elastic fluorocopolymer comprises repeating units (l) based on a fluoromonomer such as tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride or CF2?CF—O—Rf (wherein Rf is a C1-8 saturated perfluoroalkyl group or a perfluoro(alkoxyalkyl) group) and repeating units (m) based on the formula CR1R2?CR3COOCH?CH2 (wherein each of R1 and R2 is a hydrogen atom, a C1-10 alkyl group or a C1-10 alkoxyalkyl group containing an etheric oxygen atom, and R3 is a hydrogen atom, a fluorine atom or a methyl group) in a molar ratio of (m)/((l)+(n))=0.0001 to 0.1. Further, an elastic fluorocopolymer composition comprises (A) the above elastic fluorocopolymer, (B) an unsaturated multifunctional compound and (C) a bivalent metal oxide and/or hydroxide. The elastic fluorocopolymer and the elastic fluorocopolymer composition are excellent in the crosslinkability and can provide a crosslinked rubber thereof excellent in crosslinked rubber properties.

Abstract: A process for producing an elastic fluorocopolymer, by emulsion-polymerizing at least one fluoromonomer (a), a vinyl ester monomer (b) represented by the formula CR1R2?CR3COOCH?CH2 optionally, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether, in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and coagulating the elastic fluorocopolymer latex to isolate an elastic fluorocopolymer.

Abstract: A process for producing an elastic fluorocopolymer, which comprises emulsion-polymerizing at least one fluoromonomer (a) selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride and a perfluorovinyl ether represented by CF2?CF—O—Rf (wherein Rf is a C1-8 perfluoroalkyl group or a perfluoro(alkoxyalkyl) group), a vinyl ester monomer (b) represented by the formula CR1R2?CR3COOCH?CH2 (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom, a C1-10 alkyl group or a C1-10 alkoxyalkyl group containing an etheric oxygen atom, and R3 is a hydrogen atom, a fluorine atom or a methyl group), and as the case requires, at least one hydrocarbon monomer (c) selected from the group consisting of ethylene, propylene and a vinyl ether represented by CH2?CH—O—R4 (wherein R4 is a C1-8 alkyl group or an alkoxyalkyl group), in an aqueous medium to produce an elastic fluorocopolymer latex, adjusting the pH of the elastic fluorocopolymer latex to from 1 to 9, and c

Abstract: An elastic fluorocopolymer comprises repeating units (1) based on a fluoromonomer such as tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride or CF2?CF—O—Rf (wherein Rf is a C1-8 saturated perfluoroalkyl group or a perfluoro(alkoxyalkyl) group) and repeating units (m) based on the formula CR1R2?CR3COOCH?CH2 (wherein each of R1 and R2 is a hydrogen atom, a C1-10 alkyl group or a C1-10 alkoxyalkyl group containing an etheric oxygen atom, and R3 is a hydrogen atom, a fluorine atom or a methyl group) in a molar ratio of (m)/((1)=0.0001 to 0.1. Further, an elastic fluorocopolymer composition comprises (A) the above elastic fluorocopolymer, (B) an unsaturated multifunctional compound and (C) a bivalent metal oxide and/or hydroxide. The elastic fluorocopolymer and the elastic fluorocopolymer composition are excellent in the crosslinkability and can provide a crosslinked rubber thereof excellent in crosslinked rubber properties.