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Title:
CAP FOR BOTTLE
Document Type and Number:
Japanese Patent JP2002302133
Kind Code:
A
Abstract:

To eliminate the need for a process for separating a cap when a PET bottle is recovered and reused, to prevent foreign matters from getting into the recovered bottle, and to provide a mechanism to indicate that the cap is opened.

The cap is composed of a polyethylene telephthalate resin containing an ethylene telephthalate unit of 70 mole percent or more and partially welded to a bottle body. The cap may be partially welded to the bottle body by ultrasonic welding and/or heating-plate welding. Whether or hot the cap is opened can be checked by breaking a welded part or notched part. The breaking torque of the cap is 1-25 kg-cm.


Inventors:
YOSHIHARA NORI
YAMASHITA KATSUHISA
TANGE AKIO
Application Number:
JP2001107266A
Publication Date:
October 15, 2002
Filing Date:
April 05, 2001
Export Citation:
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Assignee:
TOYO BOSEKI
International Classes:
B65D41/02; B65D49/12; (IPC1-7): B65D41/02; B65D49/12



 
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