PETpla.net Insider 07+08 / 2010

PET patents www .verpackungspatente.de 36 PET planet insider Vol. 11 No. 07+08/10 www.petpla.net Bottle neck-form European patent granted No. EP 1528000 B1 Applicant: Yoshino Kogyosho Co. Ltd., Tokyo (JP) Date of application: 11.8.2003 The neck form and thread of a PET bottle are designed in particular to compen- sate for changing pressures and to resist leakage when hot filling. Variable geometry bottle International patent No. WO 2010 / 018835 A1 Applicant: Yoshino Kogyosho Co. Ltd., Tokyo (JP) Date of application: 11.8.2009 A plastic bottle with side-walls so designed that, when the pressure in the bottle rises or falls, they “unfold” in an axial direction or draw together, to compensate for changes in the internal and external pressures. Preform with integrated pourer International patent No. WO 2008 / 143853 A1 Applicant: Amcor Ltd., Abbotsford (AU) Date of application: 14.5.2008 The shape and manufacturing proc- ess for a container with an integrated pouring spout made from a one-piece preform. The pourer is not retrofitted. Plastic bottle US patent No. US 2008 / 0245761 A1 Applicant: Graham Packaging Comp., York (US) Date of application: 5.4.2007 A plastic bottle for use in hot filling or pasteurisation which, thanks to its design and material combination, is more tightly sealed and less permeable than others in this category and so extends the shelf-life of the contents. Multi-layer bottle International patent No. WO 2010 / 001842 A1 Applicant: Yoshino Kogyosho Co. Ltd., Tokyo (JP) Date of application: 29.6.2009 The process for manufacture of a bottle with ribs is described. The construc- tion of the multi-layer bottle and the tool required to produce it are also described. Bottle with handle European patent No. EP 2143653 A1 Applicant: Yoshino Kogyosho Co. Ltd., Tokyo (JP) Date of application: 26.3.2008 The application describes the process for manufacture of a PET bottle with a separately produced handle. In particular the applica- tion covers optimisations in the area of leak-proofing, and test- ing the seal around the handle mounting point.