JP2005522383A5

JP2005522383A5 -

Info

Publication number: JP2005522383A5
Application number: JP2003583864A
Authority: JP
Filing date: 2003-04-10
Publication date: 2006-06-01

Claims

A closure comprising a body and a barrier layer for a container with a cylindrical neck having an outer wall, an inner wall, and an open edge with an inner end and an outer end,
a. The body is
(I) a disk-shaped upper wall having an inner surface disposed to contact or substantially contact an edge of the container neck when engaged with the container neck;
(Ii) a cylindrical side wall attached to the top wall and extending substantially perpendicularly so as to contact or substantially contact the neck portion of the container when engaged with the neck portion; ,
(Iii) means for securing the body to the neck of the container;
(Iv) including at least one sealing member attached to and extending from the inner surface of the upper wall, concentric with the cylindrical side wall, and the neck of the container when the body is engaged with the neck of the container A seal disposed in continuous contact with the outer upper end of the section,
b. The barrier layer is incorporated into the top wall of the body and is selected to provide a barrier to gas penetration and absorption of aroma components in the contents of the container when the body is secured to the neck of the container. Closure made from a barrier material that is made.

The seal includes an inner sealing member and an outer sealing member;
a. The outer sealing member attached to and extending from the inner surface of the upper wall is concentric with the cylindrical side surface, and an outer upper end portion of the neck portion of the container when the main body is engaged with the neck portion of the container. Arranged in continuous contact with
b. The inner sealing member attached to and extending from the inner surface of the upper wall of the main body is concentric with the outer sealing means, and the inner side of the container neck when the main body is engaged with the neck of the container. The closure according to claim 1, wherein the closure is disposed in continuous contact with the end.

3. A closure according to claim 1 or claim 2, wherein the securing means includes female threads on the cylindrical side wall that engage corresponding threads on the outer surface of the neck of the container.

The seal includes an outer sealing member disposed to engage an outer end or outer wall of a neck portion of the container, and the barrier layer is disposed on the container when the closure is installed on the container. The closure according to claim 1, wherein the closure is disposed so as to engage with an upper end portion or an inner end portion of the neck portion.

A closure according to claim 1 or claim 2, wherein the body is made from a thermoplastic material selected from the group consisting of polyolefin, nylon, polyvinyl chloride, polycarbonate, polystyrene, and polyester.

The closure according to claim 5, wherein the polyolefin is selected from the group consisting of high density polyethylene, low density polyethylene, linear low density polyethylene and polypropylene.

The closure according to claim 1, wherein the product is obtained by an in-shell molding process (in-shell molding process) or a pick-and-place process, wherein the barrier layer is formed by using the in-shell molding process or the pick-and-place process. A product incorporated in the upper wall of the closure body.

The closure according to claim 1 or claim 2, wherein the barrier is made from a material selected from the group consisting of amorphous nylon, semi-crystalline nylon, ethylene vinyl alcohol, polyvinylidene chloride, polyester, and polyacrylonitrile.

The closure for a container according to claim 1, wherein the container is a PET bottle.