A blow molding device in which pressure is accumulated in advance in a cylinder, which is used for providing pressurized an air space about a mouth of a preform to be molding into a container within a mold using a pressurized liquid. Pressure is also accumulated in advance in an accumulator. When a pressurized liquid is supplied into the preform, the opening-closing valve of the accumulator is opened to thereby apply the accumulated pressure within the accumulator to the liquid supplied into the preform, and the opening-closing valve is closed to thereby allow the accumulated pressure within the cylinder to pressurize the air space.

A multilayer injection molded article containing a layer (A) containing a polyamide resin (A), and a layer (B) containing a resin (B) as a major component, wherein the polyamide resin (A) contains from 25 to 50% by mol of a diamine unit, which contains a particular diamine unit in an amount of 50% by mol or more; from 25 to 50% by mol of a dicarboxylic acid unit, which contains a particular dicarboxylic acid unit in an amount of 50% by mol or more; and from 0.1 to 50% by mol of a particular constitutional unit.

A multilayer injection molded article containing a layer (A) containing a polyamide resin (A), and a layer (B) containing a resin (B) as a major component, wherein the polyamide resin (A) contains from 25 to 50% by mol of a diamine unit, which contains a particular diamine unit in an amount of 50% by mol or more; from 25 to 50% by mol of a dicarboxylic acid unit, which contains a particular dicarboxylic acid unit in an amount of 50% by mol or more; and from 0.1 to 50% by mol of a particular constitutional unit.

A preform is biaxially stretch blow molded into a container by using a liquid as a pressurizing medium. The preform is formed in a bottomed tubular shape including a mouth, a trunk, and a bottom by extrusion blow molding. The preform includes bottom parting lines, which are formed in the bottom due to the extrusion blow molding, and the bottom parting lines are configured to extend to the outer side from the axis of the bottom to divide the bottom into at least three parts in the circumferential direction. Further, a container is formed by biaxially stretch blow molding the preform by using the liquid as the pressurizing medium.

The invention relates to devices and to methods for transporting preforms in the region of a blow-molding machine, in particular a sorting device (10) for transporting preforms (20) composed of a thermoplastic material in the region of a blow-molding machine for the blow-molding of containers, comprising a transportation wheel (12), which has a plurality of accommodating recesses (18) for accommodating and conveying the preforms (20), which accommodating recesses are arranged on the circumference of the transportation wheel in such a way that the accommodating recesses are distributed in the circumferential direction, a guide collar (16), which extends circumferentially around the transportation wheel (12) in some regions in such a way that the guide collar is radially spaced apart from the transportation wheel, wherein the preforms (20) are transported in suspension between the transportation wheel (12) and the guide collar (16) in the region of the sorting device (10), and a selection unit for selectively removing a respective individual preform (20) transported in one of the accommodating recesses (18) of the transportation wheel (12), wherein the selection unit comprises a pivotable ejecting star (14) with a plurality of ejecting arms (31), which ejecting star, when in the idle position, reaches into the peripheral region of the transportation wheel (12) by means of a first ejecting arm (31) immediately adjacent to the guide collar (16) in the transportation direction of the preforms (20), in such a way that the preforms (20) in the accommodating recesses (18) that are transported past the first ejecting arm (31) are secured against unintentionally falling out, wherein the ejecting star (14), in the event of a rotational motion, pushes an individual preform (20), which is marked for removal, out of one of the accommodating recesses (18) of the transportation wheel (12) by means of a second ejecting arm (32) following after the first ejecting arm (31), and wherein, in a recurring manner after the preform (20) marked for removal has been pushed out, the second ejecting arm (31) takes on the securing of the preforms (20) transported past the second ejecting arm against falling out of the accommodating recesses (18).

The invention relates to devices and to methods for transporting preforms in the region of a blow-molding machine, in particular a sorting device (10) for transporting preforms (20) composed of a thermoplastic material in the region of a blow-molding machine for the blow-molding of containers, comprising a transportation wheel (12), which has a plurality of accommodating recesses (18) for accommodating and conveying the preforms (20), which accommodating recesses are arranged on the circumference of the transportation wheel in such a way that the accommodating recesses are distributed in the circumferential direction, a guide collar (16), which extends circumferentially around the transportation wheel (12) in some regions in such a way that the guide collar is radially spaced apart from the transportation wheel, wherein the preforms (20) are transported in suspension between the transportation wheel (12) and the guide collar (16) in the region of the sorting device (10), and a selection unit for selectively removing a respective individual preform (20) transported in one of the accommodating recesses (18) of the transportation wheel (12), wherein the selection unit comprises a pivotable ejecting star (14) with a plurality of ejecting arms (31), which ejecting star, when in the idle position, reaches into the peripheral region of the transportation wheel (12) by means of a first ejecting arm (31) immediately adjacent to the guide collar (16) in the transportation direction of the preforms (20), in such a way that the preforms (20) in the accommodating recesses (18) that are transported past the first ejecting arm (31) are secured against unintentionally falling out, wherein the ejecting star (14), in the event of a rotational motion, pushes an individual preform (20), which is marked for removal, out of one of the accommodating recesses (18) of the transportation wheel (12) by means of a second ejecting arm (32) following after the first ejecting arm (31), and wherein, in a recurring manner after the preform (20) marked for removal has been pushed out, the second ejecting arm (31) takes on the securing of the preforms (20) transported past the second ejecting arm against falling out of the accommodating recesses (18).

A continuously rotating, non-symmetric preform feed, stretch-blow-moulding machine dedicated to the stretch-blow-moulding of containers from non-symmetric injection moulded preforms; the non-symmetric preforms including an integral handle extending from a first junction point to a second junction point on a body of the preform; the body of the preform and the integral handle constituted from the same material.

A continuously rotating, non-symmetric preform feed, stretch-blow-moulding machine dedicated to the stretch-blow-moulding of containers from non-symmetric injection moulded preforms; the non-symmetric preforms including an integral handle extending from a first junction point to a second junction point on a body of the preform; the body of the preform and the integral handle constituted from the same material.

Non-symmetric and volume reduced preforms and containers stretch blow moulded therefrom by a continuously rotating, preform feed, stretch-blow-moulding machine dedicated to the stretch-blow-moulding of containers from non-symmetric or reduced volume injection moulded preforms; the non-symmetric or reduced volume preforms including an integral handle extending from a first junction point to a second junction point on a body of the preform; the body of the preform and the integral handle constituted from the same material.

A preform assembly includes: an outer preform that includes an outer mouth portion and a stretch portion connected to the outer mouth portion and in which a recess extending in a vertical direction is provided on an inner surface of the stretch portion; and an inner preform that includes an inner mouth portion and a stretch portion connected to the inner mouth portion, wherein an outside air introduction port communicating with a part between the outer preform and the inner preform is provided in a mouth portion composed of the outer mouth portion and the inner mouth portion located on an inner side of the outer mouth portion.