Patent ID: 8123638
Filing Date: 2012-02-28
Classification: A63B,C08G

Abstract:
1. An amusement ball comprising a hollow shell of a solid, rubbery and elastic material formed of a soft, highly elastic polyester-based thermoplastic polyurethane resin, the hollow shell having a wall thickness of 3-5 mm, the ball being filled with a gas under a pressure of greater than 0.65 up to 0.8 kgf/cm the ball being characterized in having a bounce capability such that when thrown downward it can bounce up to over 20 feet vertically; wherein the soft, highly elastic polyester-based thermoplastic polyurethane resin is a polyester/MDI-based thermoplastic polyurethane resin having a tensile strength of at least about 45 MPa, an ultimate elongation of at least about 700%, and a shore A hardness of 70-90, and wherein said amusement ball is transparent or translucent.