Fujimori Kogyo Co., Ltd.

Zacros Corporation

Atsushi Mio

Toyoaki Suzuki

Junpei Nomura

Kaho Toyabe

Hajime Okamoto

Koichi Miura

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.

Port-equipped bag and cap-equipped bag

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.

Plastic container

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 cm, and the relation between the area S (cm) where the bag body is in contact with the contained product housed in the bag body and the aforementioned volume V (cm) satisfies 0.05&#x2264;V/S&#x2264;0.25 (formula (I)).

Package

A multilayered liquid container having a discharge port welded under specified conditions to a sealant, which is constituted of a resin comprising a cycloolefin resin as a main component. The discharge port is composed of: an innermost layer constituted of a resin comprising a cycloolefin as a main component; and a surface layer whose main part is constituted of a resin comprising a specific type of polyethylene as a main component. According to the present invention, there can be provided a multilayered liquid container, which can prevent an effective component of a content fluid from being adsorbed onto or penetrating through not only the container body, but also the resin constituting the discharge port, and enables high temperature sterilization treatment, coupled with the discharge port having high welded strength and drop strength.

Growing community of inventors

Tokyo, Japan

Atsushi Mio