摘要:
The invention is directed to a process for producing a plastic container or a preform thereof with a barrier coating characterized in that the plastic container or the preform thereof comprises an inside thread for a cap having an outside thread and that the barrier coating is provided on the complete outside surface of the container or the preform.
摘要:
Eine Formulierung zur Herstellung streckgeblasener opaker Kunststoffbehälter, insbesondere Kunststoffflaschen, umf asst eine für den Streckblasprozess einsetzbare Polymermatrix und wenigstens einen mineralischen Füllstoff. Die Polymermatrix ist aus der Gruppe bestehend aus PET, Polystyrol und Biokunststoffen, insbesondere Polylactid, gewählt. Als mineralischer Füllstoff wird der Polymermatrix Kalziumkarbonat in einer Menge von 5% - 45% Gewicht bezogen auf das Gesamtgewicht der Formulierung beigemengt. Es sind auch ein aus der Formulierung hergestellter Pref orm und ein Verfahren zur Herstellung opaker Kunststoffbehälter in einem Streckblasverfahren beschrieben.
摘要:
An apparatus for/and a method of molding a preform, the apparatus comprising: a core section(722) having an elongated molding assembly configured to mold at least aportion of the preform, the elongated molding assembly configured to mold at least a portion of the preform, the elongated molding assembly comprising: a first portion (719) of the elongated molding assembly for molding a first portion of the preform, a first temperature control system (732) in thermal communication with the first portion; a second portion (720) of the elongated molding assembly for molding a second portion of the preform, and a second temperature control system (733) in thermal communication with the second portion; a cavity section having a cavity (716), the cavity section and the core section mate to form a cavity space in the shape of the preform, the cavity space positioned between the elongated molding assembly and the cavity, and wherein the first temperature control system actively controls the temperature of the second portion such that the first portion is at a first temperature for forming crystallized materail of the preform while the second portion is at a second temperature for forming substantially amorphous material of the preform.
摘要:
Disclosed are plastic preforms and bottles, preferably comprising polyethylene terephthalate (PET), in which the materials in the neck, neck finish and/or neck cylinder is at least partially in the crystalline state and the body is primarily in the amorphous or semi-crystalline state. This structure in a preform enables the preform to be easily blow molded by virtue of the amorphous material in the body, while being able to have dimensional stability in hot-fill applications. In addition, the amorphous inner surface of the neck finish stabilizes the post mold dimensions allowing closer molding tolerances than other crystallizing processes. On the other side, the crystallized outer surface supports the amorphous structure during high temperature filling of the container. Physical properties are also enhanced as a result of this unique crystalline/amorphous structure.
摘要:
Coated articles that can include one or more coating layers, and methods of making thereof, are disclosed herein. One or more coating layers can include a UV-curable material and a crosslinking initiator.
摘要:
Coated articles may comprise one or more coating layers, including water resistant coatings. A method comprises applying such coating layers by treating the article substrate by one or more methods selected from flame treatment, corona treatment, ionized air treatment, plasma air treatment and plasma arc treatment and dip, spray or flow coating. Additionally, a method comprises injection molding a first substrate material to form an article, treating the article surface by one or more methods selected from flame treatment, corona treatment, ionized air treatment, plasma air treatment and plasma arc treatment, and overmolding the article substrate with one or more barrier materials.
摘要:
Coated articles may comprise one or more coating layers, including water resistant coatings. A method comprises applying such coating layers by dip, spray or flow coating. The methods can make coated containers, preferably comprising polyethylene terephthalate, from coated preforms. In some methods, the aqueous solutions, dispersions, or emulsions are substantially or completely free of VOCs.
摘要:
Overmolded containers and methods of manufacture thereof are disclosed, which may provide enhanced visual and tactile characteristics, enabling innovative packaging designs, improved grippability and thermal insulation. The containers can be made cost effectively manner, with minimal impact on polymer recycling streams. The methods of making the container include the steps of providing a container preform which comprises a thermoplastic polymer, such as a PET copolymer; overmolding an elastomeric material over at least a portion of the preform to form an overmolded preform; and blow-molding the overmolded preform to form an overmolded container. In one embodiment, the overmolded container is a beverage container.
摘要:
A preform comprising a neck portion and a body portion having a wall portion an end cap, the body portion comprising a first layer and a second layer, the second layer, the second layer comprising an expandable material; a preform comprising a threaded neck portion and a body portion including a wall portio: and an end cap, the body portion comprising expandable material adapted to produce foam when activated; methods of forming the preforms; the bottles manufactured and methods of injection moulding using multiple gates, outlets, exhaust systems or mould cavities.