PETpla.net Insider 10 / 2011

PET patents www .verpackungspatente.de 56 PET planet insider Vol. 12 No. 10/11 www.petpla.net Hinged lid International Patent No. WO 2009 / 145847 A1 Applicant: Seaquist Closures LLC., Mukwonago (US) Date of Application: 14.4.2009 Design and method for manufacturing a hinged lid which can only be opened after breaking a safety catch and which is subsequently held in place by means of the hinge. Multi-layer container Europ. Patent Nr. EP 2281752 A1 Applicant: Yoshino Kogyosho Co. Ltd., Tokio (JP) Date of Application: 20.4.2009 Structure and method are described for manufacturing a multi-layer plastic bottle with improved barrier characteristics. Weight reduction International Patent No. WO 2009 / 134132 A1 Applicant: Whitestone Corp., S.A., Luxemburg (LU) Date of Application: 29.4.2009 A major proportion of the weight of a plastic bottle accumulates in the area of the thread / the top of a plastic bottle that is manufactured from a preform. This patent application describes a number of possible ways of reducing this accumulation. Triangular bottle European Grant of Patent No. EP 2135812 B1 Applicant: Sidel Participations, Octeville-sur-Mer (FR) Date of Application: 8.6.2009 Container, in particular a bottle, made from thermoplastic material and having a partially prism-shaped, triangular body. Hot filling European Grant of Patent No. EP 1955955 B1 Applicant: Ball Corp., Broomfield (US) Date of Application: 9.1.2008 Mould and method for manufactur- ing a plastic bottle intended for hot filling and which is therefore pro- vided with different compensating areas for elastic absorption of the deformations that occur as a result of cooling. Compensating areas International Patent No. WO 2009 / 135046 A1 Applicant: Constar Inc., Philadelphia (US) Date of Application: 30.4.2009 A plastic container is fitted with lines / constrictions or indenta- tions arranged vertically. The shape of the indentations ensures that the internal pressure of the container, which falls after cool- ing, can be compensated for with- out modifying the external profile.