Abstract: A compressed gas container apparatus having at least two compressed gas containers disposed side by side, each for one foamable liquid product which contains a liquidified propellant gas, wherein both compressed gas containers are each provided with a valve; both valves are actuatable in common by a top fitting, and each valve is provided through the top fitting with a connecting conduit; the connecting conduits discharge into a mixing chamber and an expansion conduit adjoins the mixing chamber and on its end has a foam dispensing opening; wherein the connecting conduits and the mixing chamber have such small cross-sectional areas that when a product is dispensed, the products flowing through the connecting conduits and the mixing chamber remain in a liquid phase.

Abstract: The aerosol container has a container neck (1); a valve disk (5) arranged in the container neck at least partially sealed to its interior wall (12); a valve device (6) secured in the valve disk for dispensing product from an interior space (11); a circumferential sealing element (3) arranged between a facing or top surface (4) of the container neck and a peripheral edge portion (7) of the valve disk; at least one weakly sealed section (10) provided in the container neck (1) near the sealing element (3) and at least one channel (13) provided in interior wall (12) of the container neck (1), extending to the sealing element (3) from the interior space (11) and reaching or ending at the at least one weakly sealed section (10); whereby product can escapes when a pressure in the interior space exceeds a predetermined limiting value. In a preferred embodiment four channels (13) for venting product and four weakly sealed sections are provided spaced 90° from each other around the container neck.

Abstract: In a two-component container (1) a connection is formed between two chambers (6, 7) by ejecting a sealing plug (5). By screwing one container (3) into a thread (4) connected to another container (2) the sealing plug (5) which is provided with two stoppers (12, 13) is pressed out of its retaining members (14, 15). Sealing takes place in a reliable manner by two separate stoppers (12, 13) of the sealing plug (5). When the container (3) is screwed in, first the lower stopper (13) is ejected by the upper stopper (12) and then the upper stopper (12) is ejected by an ejection member (22). The two-component container (1) is suitable for holding peroxide and hair dye separately. After it has been ejected, the sealing plug (5) assists in the mixing of the said two components.

Abstract: In the method of producing a hollow foamed plastic body from polyethylene or polypropylene by means of an extrusion blow-molding process using a single-screw extruder and a blow-molding tool, the plastic material is foamed by means of a chemical blowing agent, and a pre-molded tube blank formed from the foamed plastic material is blow-molded in the blow-molding tool. The blow-molding tool has a tool surface temperature of at least 35.degree. C. over at least one portion of the surface. A blowing agent that decomposes endothermically and provides a nucleation effect is included in a blowing-agent master batch based on high density polyethylene. The master batch has an average grain size of about 1 mm and the pre-molded tube blank is blow molded at a pressure of from 0.5 to 2.0 bar, or the pre-molded tube blank is blow-molded in an interval blow-molding process with a blow-molding pressure of from 3 to 10 bar, preferably 8 to 10 bar, in a first time slot and a blow-molding pressure of from 0.5 to 1.

Abstract: In a two-component container (1), a connection between two chambers (6, 7) can be produced by the ejection of a stopper (5). By screwing the one container (3) into a thread (4) connected to another container (2), the stopper (5) is ejected out of its retaining element (14). An intermediary piece (19) is provided between the containers (2, 3) and rests with a support (20) on the upper rim (21) of the lower container (3). A sealing lip (30) between the connecting piece (10) and the intermediary piece (19) can be deflected elastically outward so that it produces a valve action in the event of an overpressure in the two-component container (1). The two-component container (1) is suited for separately storing peroxide and hair color.

Abstract: A flask-like container (1) of reduced material utilization, which is smooth on the exterior, having a deformable jacket wall (2), by means of which a metering function of a liquid product by means of compression and restoration in connection with a metering opening is provided for single-handed operation, wherein the container (1) essentially is made of foamed plastic and the container (1) is at least partially enclosed by a smooth container decoration (4).In a method for producing such a container (1), a chemical propellant is introduced into a plastic material (3), thereafter the container (1) is shaped by means of extrusion techniques, and finally the container (1) is enclosed in a smooth container decoration (4).A rough exterior structure is avoided by means of the enclosure (FIG. 2).

Abstract: A plastic container has a high resistance to chemical attack and is made by a method including extruding and inflating a tube in a single operation by a coextrusion blow molding process to form a hollow plastic body. The tube consists of an outer layer made of glycol-modified polyethylene terephthalate (PETG) and an inner layer made of polyethylene terephthalate (PET), polyethylene naphthalate (PEN) or a mixture thereof. Selection of the foregoing materials and layers allows the plastic body for the container to be made in a single operation by coextrusion blow molding.

Abstract: The bottle-type container (1,1.1) produced with a reduced material input is made of an expanded plastics material (3), has a dimensionally-resilient shell wall (2,2.1) and is provided with a metering opening (7) for metered dispensing of a liquid product contained in the container by applying a manual pressure to the container with one hand. The expanded plastics material (3) is from 10% to 30% less dense than the same plastics material in a non-expanded state, the container has a maximum container volume of 1500 ml, the shell wall (2,2.1) has thickness of from 0.5 to at maximum 1.5 mm, and the thickness of the shell wall (2,2.1) has an approximately proportional relationship to the container volume.