초록 ▼

A multichamber container must have certain characteristics in order to uniformly dispense the contents of each chamber from the container. The outer wall of the container and the inner divider web walls must have certain characteristics. The inner divider web walls must be highly flexible while the

A multichamber container must have certain characteristics in order to uniformly dispense the contents of each chamber from the container. The outer wall of the container and the inner divider web walls must have certain characteristics. The inner divider web walls must be highly flexible while the outer container wall must be less flexible. The Deflective Force for the outer wall must be greater than the Deflective Force for the web walls. In addition, to alleviate the problem of suckback of air into the container chambers, the outer wall should exhibit a specific Retention Index. This is a measure of the outer wall to remain deflected after the removal of the deflecting force. The inner divider web wall will have a lower Retention Index than the outer wall. By the proper selection of outer wall and web walls, there can be uniform dispensing from the dispenser. The Stiffness of the outer wall also should be less than the Stiffness for the inner web divider walls. This can be accomplished by the choice of films and the thickness of the outer wall film and the inner divider wall film.

대표청구항 ▼

[ What is claimed is:] [1.] A multichamber tubular container for the controlled dispensing from each chamber comprising an elongated tubular member closed at one end and having a dispensing means at another end, said tubular member defined by an outer wall and at least one inner divider wall, said o

[ What is claimed is:] [1.] A multichamber tubular container for the controlled dispensing from each chamber comprising an elongated tubular member closed at one end and having a dispensing means at another end, said tubular member defined by an outer wall and at least one inner divider wall, said outer wall having a thickness of about 0.2 mm to about 0.8 mm, a Retention Index of less than about 30 percent, and a Deflective Force of at least about 500 to 1500 grams to flex said outer wall about 9 mm, said at least one inner divider wall having a substantially uniform thickness of about 0.02 to about 0.15 mm and a Deflective Force of about 20 to about 120 grams to flex said inner divider wall about 9 mm and a Retention Index of less than about 20 percent.