| 摘要 |
<p>A sole 10 for a foldable shoe made from an elastomeric material comprising styrene, polystyrene, calcium carbonate, silicon dioxide, naphthenic oil and zinc stearate. The styrene may be in the form of a styrene-butadiene-styrene block copolymer (SBS), and the silica may be in the form of Silicon (iv) oxide, silicic anhydride, or quartz sand. The sole may comprise a flexible forward sole portion 100 extending from a front toe part of the shoe to a flexible in-step portion 102, a flexible rear sole portion 101 extending from a rearmost part of the shoe to the flexible in-step portion, and the forward, rear and in-step sole portions co-operate to form a substantially continuous sole when the shoe is worn by a user. An underside of the flexible in-step portion preferably comprises a foldable region configured with a plurality of ridges and channels 221,222, each extending across at least part of the width of the sole and disposed transverse to a main front rear axis of the sole, the channels increasing the flexibility of the foldable region relative to the front and rear sole portions. Also claimed is a method of forming such a sole.</p> |
