Vessel closure with sealing element, vessel with vessel closure and method for producing a closed vessel
AssigneeSilgan Holdings Inc.
InventorsJuergen KINTSCHER, Andreas MANIERA
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Abstract
The invention relates to a vessel closure with a sealing element. The sealing element comprises a polymer composition. The polymer composition comprises at least 1 wt.-% of a cyclic olefin polymer. The oxygen transmission rate—OTR—of the polymer composition, determined according to DIN 53380, is at most 3000 cm3 m−2 d−1 bar−1.
Claims16
A vessel closure comprising a sealing element, wherein the sealing element comprises a polymer composition, wherein the polymer composition comprises:
- (a) at least 1 wt.-% of a cyclic olefin copolymer,
- (b) wherein the oxygen transmission rate of the polymer composition, determined according to DIN 53380, is at most 3000 cm3 m−2 d−1 bar−1, and
- (c) wherein the cyclic olefin copolymer is a bipolymer.
A vessel comprising a vessel mouth and a closable opening at the end of the vessel mouth, wherein the closable opening is closed by a vessel closure comprising a sealing element, wherein the sealing element comprises a polymer composition, wherein the polymer composition comprises:
- (a) at least 1 wt.-% of a cyclic olefin copolymer, and
- (b) wherein the oxygen transmission rate of the polymer composition, determined according to DIN 53380, is at most 3000 cm3 m−2 d−1 bar−1, and
- (c) wherein the cyclic olefin copolymer is a bipolymer.
A method for producing a closed and filled vessel, comprising:
- (a) providing a vessel having a vessel mouth and a closable opening at the end of the vessel mouth;
- (b) filling the vessel with a foodstuff through the opening of the vessel;
- and
- (c) closing the opening of the vessel by a vessel closure comprising a sealing element, wherein the sealing element comprises a polymer composition, wherein the polymer composition comprises:
- (1) at least 1 wt.-% of a cyclic olefin copolymer, and
- (2) wherein the oxygen transmission rate of the polymer composition, determined according to DIN 53380, is at most 3000 cm3 m−2 d−1 bar−1, and
- (3) wherein the cyclic olefin copolymer is a bipolymer.
A vessel closure comprising a sealing element, wherein the sealing element comprises a polymer composition, wherein the polymer composition comprises:
- (a) at least 1 wt.-% of a cyclic olefin copolymer, and
- (b) wherein the oxygen transmission rate of the polymer composition, determined according to DIN 53380, is at most 3000 cm3 m−2 d−1 bar−1,
- (c) wherein a monocyclic or polycyclic olefin has a fraction of at least 10 mol-% in the cyclic olefin polymer.
Dependencies are inferred from the claim text.