Abstract: The invention concerns a container comprising a body formed by walls (2) and a bottom (3) having in his greater section a dimension d1 and a neck with an internal diameter d2, said container being made from a semi-crystalline PET, the body of said container comprising at its bottom at least three feet (5) spaced from each other and being integral with said body, wherein each foot (5) is joined to the other through a flat surface (10) or a continuous line to make a contact with the support surface of said container.

Abstract: The present invention relates to a container (2) comprising a body (23), a neck (22) and a closure element (21), the said body having a surface of positive curvature and including, on its external surface, a stretch film (1) partially covering its surface, made of a plastic different from or the same as that of the body of the said container.

Abstract: The present invention relates to a process for manufacturing a preform from a semicrystalline amorphous polymer at a slow rate of crystallization, in which: the said polymer is plasticized at (3) by rapidly raising its temperature to a temperature below the melting point; the said plasticized polymer is pressed through a die (4); on leaving the die, the said polymer is swept by a hot dry inert gas (11); the plasticized polymer is received in a first container (6), while keeping the polymer at the same temperature as the plasticizing temperature in all the steps; and a die pressing step (13) is carried out in the said first container or in a second container, transferred from the first, with sudden cooling so as to obtain the preform in an amorphous state.

Abstract: The invention concerns the field of manufacture of PET containers designed in particular for packaging food products, particularly bottles for aerated beverages such as in particular natural and mineral water. The method for manufacturing PET resin preforms and the resulting preforms, a method for making PET resin containers from the preforms and the manufactured containers, in particular food bottles made of PET resin. The method for making PET resin preforms is characterised in that it consists in using a PET resin having an intrinsic viscosity (IV) less than 0.65 dl/g.

Abstract: A valve assembly has a valve housing and a valve core body movable therewithin for providing a smooth and continuous outflow of liquid from a container, which may be unvented and rigid, through a liquid-out passageway, and provides an air-back passageway for drawing external air into the container. In a preferred embodiment, the core is rotatable within the housing by one-handed actuation. The air-back passageway is preferably a channel provided on the surface of the core body, and the liquid-out passageway is preferably provided between openings in the core body.

Abstract: The invention concerns a container comprising a body formed by walls and a bottom having in his greater section a dimension d1 and a neck with an internal diameter d2, said container being made from a semi-crystalline PET, the body of said container comprising at its bottom at least three feet spaced from each other and being integral with said body, wherein for the body, the ratio weight of the walls on weight of the bottom is comprised between 3 and 4 and wherein the ratio volume of the body of the container per gram of PET of the body is comprised between 80 and 120.

Abstract: The present invention relates to a container for a flowable product, particularly for a beverage and, in particular, for still or sparkling mineral water. The container according to the invention includes a body having in a greater section a dimension d1 and of at least one neck with an internal diameter d2 which can be closed by a member for closing off and/or of distributing the flowable product from the container. The wall or walls forming the body of the container are preferably made of a flexible plastic which can deform for constant surface area, particularly under the weight of the flowable product from the container when the wall or walls encounter a point or bearing surface, so as to form, at least locally, a non-planar wall portion and wherein the ratio d2 to d1 is between 1:3 and 1:10.

Abstract: The invention concerns polyester resins, more particularly polyethyleneterephthalate resins used for making hollow containers, such as bottles for packaging liquid substances, in particular aerated beverages, natural or mineral waters. The invention concerns a polyester comprising at least 92.5% in number of recurrent units derived from terephthalic acid of aliphatic diols having an intrinsic viscosity ranging between 0.45 dl/g and 0.70 dl/g, and an acetaldehyde content less than 3 ppm, preferably less than 1.5 ppm. The invention also concerns a method for obtaining polyester granules with low acetaldehyde content having an intrinsic viscosity in the range mentioned above. Said polyesters are used in particular for making hollow containers such as bottles and more particularly bottles designed to contain foodstuffs sensitive to acetaldehyde.