초록 ▼

There is provided a container closure that can easily be manufactured, has improved drop strength and is convenient for opening operation. The present invention provides a container closure which includes a substrate having adequate property for retaining an object which is enclosed in a container,

There is provided a container closure that can easily be manufactured, has improved drop strength and is convenient for opening operation. The present invention provides a container closure which includes a substrate having adequate property for retaining an object which is enclosed in a container, a peripheral section formed on the periphery area of the container closure on the opposite side of a side where the substrate is attached to a container body, a panel section covering an area of the substrate surrounding by the peripheral section on the same side where the peripheral section is provided, and a score section formed between the peripheral portion and the panel section to provide a weakened region. The peripheral section and the panel section is a plastic layer formed with the same heat-fusible plastic as the substrate. A substantial area of the score section is constructed of the substrate. Further, a thin layer is formed on at least a part of the score section with the heat-fusible plastic that connects the peripheral section and the panel section.

대표청구항 ▼

[ What is claimed is:] [1.]1. A container closure for closing an opening of a container body, comprising:a substrate having adequate property for retaining an object which is enclosed in a container body, one side of said substrate being attachable to a container body, and wherein said substrate inc

[ What is claimed is:] [1.]1. A container closure for closing an opening of a container body, comprising:a substrate having adequate property for retaining an object which is enclosed in a container body, one side of said substrate being attachable to a container body, and wherein said substrate includes a heat-fusible plastic layer;a peripheral section covering a periphery area of said substrate on the opposite side of the side of said substrate being attachable to a container body;a panel section covering an area of said substrate which is surrounded by said peripheral section and on the side having said peripheral section; anda score section formed between said peripheral section and said panel section to provide a weakened region,wherein said peripheral section and said panel section are formed of a heat-fusible plastic material which is the same heat-fusible plastic material on said substrate,wherein a portion of said score section includes a thin layer which has a thickness which is less than a thickness of said peripheral section and said panel section, and wherein said thin layer connects said peripheral section and said panel section, and wherein said thin layer is formed of a heat-fusible material which is the same heat-fusible plastic material as said peripheral section and said panel section,wherein a pulling tab is integrally molded with said panel section, for separating said panel section from said peripheral section along said score section.