Molded articles, containers, and methods for manufacturing containers
A container design with a cyclic olefin innermost and polyolefin surface layer, incorporating fins that extend onto the innermost layer, addresses the challenge of heat resistance and gap formation during high-temperature sterilization, ensuring effective welding and residual liquid prevention.
JP7880704B2Active Publication Date: 2026-06-26ZACROS CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- ZACROS CORP
- Filing Date
- 2022-01-31
- Publication Date
- 2026-06-26
Smart Images
Figure 0007880704000001 
Figure 0007880704000002 
Figure 0007880704000003
Abstract
To provide a molded article which is excellent in heat resistance even in high temperature sterilization treatment, and can suppress a gap between a liquid storage part and the molded article in welding, a container having the molded article, and a method for manufacturing a container.SOLUTION: A molded article 10 has a discharge port 13, in which a cross section crossing a discharge passage 14 of the discharge port 13 has an innermost layer 15 forming the discharge passage 14 and a surface layer 16 forming the outer peripheral part of the discharge port 13, the innermost layer 15 is formed of a resin containing a cyclic olefin-based resin, a part of the innermost layer 15 is exposed to the side of the surface layer 16, a main part 18 of the surface layer 16 is formed of a resin containing at least a polyolefin-based resin, and a fin 19 is formed on the outer surface of the main part 18 of the surface layer 16.SELECTED DRAWING: Figure 1
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