Abstract: A PET bottle having structurally improved vacuum absorption panels in the bottle portion so as to increase the panels' resistance to the constricting force of the shrink label, to secure the force of restitution for the panels, and thereby to allow the liquid level in the bottle to lower when the cap is opened. Vacuum absorption panels comprising multiple, flat and variable surfaces, recessed from the plane of each corresponding main body wall; multiple, horizontal and grooved ribs, and having respectively a curved bottom with the middle portion of this bottom being slightly uplifted, and with each rib being placed under a variable surface in an alternately disposed manner.

Abstract: This invention comprises the heat- and pressure-resistant PCO neck obtained by utilizing the PCO (plastic closure only) neck structure and giving the heat resisting property to the PCO neck to obtain the heat-resistant PCO neck that will make a great deal of resources saving a reality. The heat-resistant PCO bottleneck comprises the round neck wall 2 having the same outer and bore diameters as the corresponding neck wall 21 of the heat-resistant neck 20; the thread ridge 3 of a continuous thread structure; the thread ridge extension disposed so as to keep a fixed distance from the top edge of the mouth and extending over the distance that corresponds to a wide central angle; and a bead ring 5 and a neck ring 7 molded in the same shapes as those of the PCO bottleneck 10. The bottleneck thus obtained causes no irregular shrinkage deformation and demonstrates high heat-resisting property and a sufficient resources-saving effect when the entire bottleneck is thermally crystallized and whitened.

Abstract: This invention is titled “Bottle for hot filling use, equipped with vacuum absorption panels in the bottle portion.” The purpose of this invention is to provide a PET bottle having structurally improved vacuum absorption panels in the bottle portion so as to increase the panels' resistance to the constricting force of the shrink label, to secure the force of restitution for the panels, and thereby to allow the liquid level in the bottle to lower when the cap is opened.

Abstract: A hot-fill type plastic bottle having a body, wherein said body has a octagonal cross-sectional shape, each of corners of the octagon is formed with a ridge wall, connecting walls are provided at both lateral sides of each of the ridge walls to form a pillar, a pressure reduction absorbing portion is formed between any two adjacently located ones of the ridge walls, and two connecting walls of one of the pillars form an angle between 60 and 115°. The rigidity of the pillar is raised. The bottle shows a pressure reduction absorbing effect similar to that of a conventional hexahedral bottle. In addition, the wide area of the shrink-wrap type label can be seen at a glance.