Container closure having a liner and method for its production
AssigneeJapan Crown Cork Co., Ltd.
InventorsJunichi Itsubo, Fumio Mori, Hideki Sato
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AssigneeJapan Crown Cork Co., Ltd.
InventorsJunichi Itsubo, Fumio Mori, Hideki Sato
Estimating the term…
A container closure having a sealing liner comprising a vinyl chloride-type resin is provided which has excellent sealing properties, openability and hygienic characteristics. The liner is composed of a composition, especially a plastisol composition, comprising 100 parts by weight of the vinyl chloride-type resin and 35 to 200 parts by weight of a mixed fatty acid ester of glycerin derived from glycerin, at least one saturated or unsaturated fatty acid component having an even number of carbon atoms between 6 and 24 and at least one acetic or butyric acid component, such as a diacetyl higher fatty acid glyceride. A method for producing the container closure is also provided.
A container closure having a sealing liner comprising a vinyl chloride-type resin, said liner being composed of a composition comprising 100 parts by weight of the vinyl chloride-type resin and 35 to 200 parts by weight of a mixed fatty acid ester of glycerin derived from glycerin, at least one saturated or unsaturated fatty acid component having an even number of carbon atoms between 6 and 24 and at least one acetic and/or butyric acid component.
A method for producing a container closure having a liner, which comprises applying to the inside of a container closure a plastisol comprising 100 parts by weight of particles of a vinyl chloride-type resin and 35 to 200 parts by weight of a mixed fatty acid ester of glycerin derived from glycerin, at least one saturated or unsaturated fatty acid component having an even number of carbon atoms between 6 and 24 and at least one acetic and/or butyric acid component, and gelling the plastisol to a liner form.
Dependencies are inferred from the claim text.