摘要:
The method comprises a) an extrusion stage wherein a extruded tube made of a thermoplastic material (20) is formed by extrusion with the aid of an extrusion die having a diameter D0, a slit width E0 and a section S0; b) a stage wherein the extruded tube (20) is radially expanded in order to form a radially expanded tube (23) having a diameter D2, a thickness E2 and corresponding section of area S1; c) a truncating stage wherein the expanded tube (23) is broken down into tube portions (24); d) a stage in which the tube portions (24) are formed in such a way that a heat-shrinkable cap or capsule is obtained (1) and in which an axial drawing stage is incorporated, between extrusion stage a) and expansion stage b), at the output of the extrusion die (31), in order to obtain an axially drawn tube (22) having a diameter D1 which is typically smaller than D0 and D2, and a thickness El which is typically lower than E0, such that S0/S1 typically ranges between 2 and 10. The advantages of the invention are as follows: it is possible to obtain capsules (1, lb, lc) or caps (la) which are economic, easily heat-shrinkable and which have a stable axial dimension, thereby avoiding any axial distortion, i.e. any axial distortion of said impression (13).
摘要:
Die Flaschenkapsel (1) hat einen kegelstumpfförmigen Mantel (2) aus einer schrumpffähigen Kunststoffolie. Am Umfang des Mantels (2) sind mehrere Einbuchtungen (9-12) vorgesehen, die sich elastisch verformen lassen, so dass sich die Flaschenkapsel (1) leicht auf einen Flaschenhals (5) aufschieben lässt und sie beim Aufschrumpfen auf den Flaschenhals (5) gegen Verschieben gehalten ist.
摘要:
A device comprising a body including a first polymer and a closure including a second polymer that is substantially not bondable to the first polymer and has a relatively higher shrinkage rate than the first polymer, wherein at least a portion of the closure overlaps at least a portion of the body, forming a hermetic seal therebetween and defining a sealed, empty, sterile container.
摘要:
A molded polymeric container closure (10) comprising at least one substantially unfoamed polymer (14a) layer and an integrally molded foamed layer (14b) of the same polymer.
摘要:
A vented closure for a fluid container which will not freely pour includes a cap (20) movable between open and closed positions relative to an annular base collar (30). The movable cap can be slidable to form a push-pull type closure, or can be rotatable to form a flip-type closure. In an open position, a primary liquid passageway (24) extends through the closure to a dispensing opening. One or more air vents (70) of small size are located in the base collar at positions spaced within a predetermined range of offsets from the dispensing opening. A divider (72) is located to create a secondary liquid passageway to convey liquid directly into contact with the air vents which self-seal by surface tension of the liquid. The vent aperture can be protected by overlapping portions of the movable cap.
摘要:
This invention provides a packaging material comprising a metallic foil and at least one heat-shrinkable film of synthetic resin disposed on at least one surface of the metallic foil, the film being superposed on the metallic foil and comprising superposed portions bonded to the metallic foil and superposed portions to be heat-shrunk and not bonded to the metallic foil, and the portions to be heat-shrunk of the film being shrunk by application of heat and also provides a sealing cap made of the packaging material suitable for sealing the capped mouths of bottles for wine, champagne or the like.
摘要:
An adhesive composition comprising 100 parts by weight of a fluorine-containing polymer and 2 to 30 parts by weight of an unsaturated compound containing at least one polar group selected from the group consisting of an epoxy group and a carboxyl group, wherein the fluorine-containing polymer has been graft-modified with the polar group-containing unsaturated compound by irradiation of ionizing radiation, a production process thereof, and formed products such as a heat-shrinkable tube equipped with a layer composed of the adhesive composition.
摘要:
This invention provides a packaging material comprising a metallic foil and at least one heat-shrinkable film of synthetic resin disposed on at least one surface of the metallic foil, the film being superposed on the metallic foil and comprising superposed portions bonded to the metallic foil and superposed portions to be heat-shrunk and not bonded to the metallic foil, and the portions to be heat-shrunk of the film being shrunk by application of heat and also provides a sealing cap made of the packaging material suitable for sealing the capped mouths of bottles for wine, champagne or the like.
摘要:
A vented closure for a fluid container which will not freely pour includes a cap (20) movable between open and closed positions relative to an annular base collar (30). The movable cap can be slidable to form a push-pull type closure, or can be rotatable to form a flip-type closure. In an open position, a primary liquid passageway (24) extends through the closure to a dispensing opening. One or more air vents (70) of small size are located in the base collar at positions spaced within a predetermined range of offsets from the dispensing opening. A divider (72) is located to create a secondary liquid passageway to convey liquid directly into contact with the air vents which self-seal by surface tension of the liquid. The vent aperture can be protected by overlapping portions of the movable cap.