摘要:
Method for manufacturing plastic preforms (10) by injection moulding, consisting of sub-preforms (11, 12) injected at the same time, wherein (Φ1) the injection mould (3) containing the injected composite preform (10) and secondary sub-preform (12) is 1 st closed, and a gripper (4) provided with a set of receiving members (16) is set in a standby position (A) aside from the mould (3); in a 2nd step (Φ2) the mould (3) is opened, wherein each primary core (33) bears an injected composite preform (1 0), and the secondary core (33') a secondary inner preform (12); the gripper (4) is then driven (Φ3) in motion between the standby position (A) and a take-over position (B), wherein the injected preforms (10, 12) are cooled and taken over from the core side (31 ) by the gripper (4) by means of suction means (6); wherein the gripper (4) is further moved (Φ4) into a further operating position (C), in which it places the received secondary inner preforms (12) onto the respective primary cores (33) and continues to hold said preforms (11), with formation of integrated preforms (10) which are expelled to a discharge unit.
摘要:
Preform, in particular intended as a container for viscous liquids, the rotational wall of which extends in an elongated manner along a longitudinal axis (1) and is bounded at one end by a bottom (4), and at the opposite end has a pouring opening (5) which can be closed by means of a closure cap (10), the preform having at the above-mentioned opposite end a fixed pouring spout (20) which is integral with the above-mentioned rotational wall (1).
摘要:
The invention relates to a hollow article with rigid walls (18 98), surrounding an enclosed space (19,..., 99) that occupies the interior of the hollow article (10,..., 90), made of a primary plastic base material (1) in which there is provided a secondary plastic material (2), consisting of a polymer, characterized in that this secondary polymer (2) is formed by a first component (A), being a cyclic diisocyanate as a cyclic compound, with an aromatic or optionally an aliphatic structure, and by at least one additional component (B), wherein this secondary plastic material (2) forms a barrier (12,..., 92) in the hollow article (10,..., 90), and method for producing thereof.
摘要:
Hollow injection molded article made of plastic material, esp. preform for blow molding a container, with a wall (17) extending along axis (Ι), which is composed of a layer of variable thickness (ε), being remarkable in that longitudinal ribs are provided in said axis direction, wherein the wall has a tooth profile of periodic nature varying periodically between a minimum and a maximum threshold value (m, resp. M) which is determined by a typical injection molding length (Ls) for said plastic material and/or characteristic ratio (εmax/εmin). A method of manufacturing thereof (10) by injection molding comprising forming inner and outer preforms (11, 12) with formation of an integrated composite preform (10), and apparatus for this purpose.
摘要:
Container-closure system, particularly intended for hotfill or hot filling, and which is closable by means of a releasable closure (2, 6, 8, 11) which is provided at its top with a top surface. Wherein the closure (2, 6, 8, 11) is provided with an aperture as a pressure compensation means (3) with small dimensions, which is provided externally as a passage between the exterior of the container and the interior thereof. It is further provided with an internal vacuum limiter that is arranged in the interior of the closure in such a way that said pressure compensation means (3) is separated from the interior of the container, wherein it acts as a vacuum limiter of the interior of the container in regard of said opening (3); and method therefor.
摘要:
An injection molding apparatus for manufacturing hollow objects, such as plastic e.g. multi-layered preforms, comprising an injection mold (1) with a front (2) and a rear side (3), which is composed of a clamp plate (4) on the front side (2), and a hot runner plate (5), where a manifold (6) is mounted in the hot runner plate, between which a set of injection nozzles (7) is arranged, which are each provided with a central supply duct (8), at the free end (9) whereof an injection gate (10) is provided. Said apparatus is remarkable in that said injection gate (10) is closable by means of a locking rod (11), which is movable herein to and fro through a profiled inner part (12) which is received in a holder (13) around which a heating element (14) is provided into which a primary channel (15) opens for supplying the plastic base material to the injection gate (10). Each injection nozzle (7) is directly removable individually from the injection side (16) of the injection mold at the injection side thereof, and a respective secondary channel (17) is provided separately; and method therefor.
摘要:
Process for manufacturing hollow articles (1), particularly of plastic preforms, intended for being transformed subsequently to plastic receptacles, wherein the preforms are blown to a receptacle and heated before the blowing operation to a determined blowing temperature by means of heating elements, remarkable in that the wall of the preform is treated by applying a structure operation or modification in the surface roughness and apparatus therefor.
摘要:
Container system for packaging under pressure, a continuous filling product, (semi-)liquid fluids or of the type foams, pastes or powders, comprising a container (1) which is made of plastic polymer and is provided with a neck part (23) with a pouring opening (24), a cylindrical casing part (22) which is cut off at its opposite side, and a base part. The container can be closed on said top side via a closure (5), and is exposed for an internal pressure > atmospheric pressure. This is remarkable in that said casing part (22) on its base side is cut away and is closed by a separately added base part (21) made of plastic polymer, which is attached to the casing (22) via a connection (13), and in that this is provided with a movable piston (5, 6) which is axially displaceable along the main axis of the pressurised container between a bottom and a top position (A, B). Method for manufacturing thereof.
摘要:
The invention relates to a hollow article with rigid walls (18 98), surrounding an enclosed space (19,..., 99) that occupies the interior of the hollow article (10,..., 90), made of a primary plastic base material (1) in which there is provided a secondary plastic material (2), consisting of a polymer, characterized in that this secondary polymer (2) is formed by a first component (A), being a cyclic diisocyanate as a cyclic compound, with an aromatic or optionally an aliphatic structure, and by at least one additional component (B), wherein this secondary plastic material (2) forms a barrier (12,..., 92) in the hollow article (10,..., 90), and method for producing thereof.
摘要:
This invention relates to a polymer product comprising the components consisting of a polymer in form of granules; a multidimensional structure containing amphiphilic molecules, such as lipids, surfactants or polymers, wherein said polymer product has an active and/or passive oxygen or C02 barrier, with an UV blocking activity or with potentially colouring with the incorporation of the multidimensional structure. It further relates to a method for manufacturing notably said polymer products, in particular from multidimensional aggregated components as barrier or carriers of living microbial cells and biological barriers in plastic and textile.