DeepSData
← Back to library中
Library ／ Containers & Packaging ／ Polyester container
Source reports Expired

Polyester container

US-8465817-B2

Abstract

A polyester container furnished with a flange part having mechanical strength, transparency, and heat resistance through orientational crystallization, which polyester container exhibits low-temperature heat sealability, is provided by forming a projecting portion at an upper surface of the crystallized flange part, the projecting portion at at least a heat-sealing-face constituting region rendered amorphous or of low crystallinity. Further, in order to suppress the unevenness of the strength of sealing with a cover member and stably attain the high sealability, the projecting portion is deformed at the time of heat sealing with the cover member so as to form a resin piece protruding toward the interior of the container while being substantially appressed against the upper surface of an opening rim part. The formed resin piece couples with a sealant layer of the cover member.

Patent figures（8）

US-8465817-B2 figure 1
1
US-8465817-B2 figure 2
2
US-8465817-B2 figure 3
3
US-8465817-B2 figure 4
4
US-8465817-B2 figure 5
5
US-8465817-B2 figure 6
6
US-8465817-B2 figure 7
7
US-8465817-B2 figure 8
8

Source status & events

No source-status events are recorded.

Related patents (same category)

Shipping containerUS-10370142-B2Stackable molded capUS-10071835-B1Container for providing easy access to beverage cansUS-9926121-B2Stopper device for the neck of a container, container provided with such a device, method for stopping such a container, and method for production of such a deviceUS-9889971-B2Thermal bag for foods and the likeUS-9834366-B2Packaging device for a windscreen wiper comprising a curved blade and an integrated flexible structureUS-9365317-B2Method for the production of a can body, and can bodyUS-9365344-B2Reactive materials packagingUS-9334098-B1
Notice

This page is for reference only, not legal advice

A source status is not a legal conclusionPatent status may change through fee payment, reinstatement, family rights, or jurisdiction. Check current authoritative records and obtain professional advice.
Obtain FTO clearance before useBefore any make, import, or sell decision, obtain a Freedom-to-Operate analysis from a qualified patent professional.