Toyo Aerosol Industry Co., Ltd.

Koh Naito

Kazunori Hoshino

Iwao Yazawa

Yukio Hachinohe

Toshiyuki Mitsui

Kazuhide Maeda

A double chamber aerosol container capable of filling contents in the container upon cutting off open air has an inner sack, whose volume is reducible according to reduction of contents, formed with temporarily engaging portions. A housing to which a valve assembly is arranged is inserted in the inner sack where the temporarily engaging portions are temporarily engaged with a ring-shaped neck portion of an outer container. After propellant is filled in a space between the inner sack 1 and the outer container during this temporarily engagement, the inner sack is inserted in the outer container to form the double chamber aerosol container.

Growing community of inventors

Urawa, Japan

Koh Naito