Patent ID: 7144354
Filing Date: 2006-12-05
Classification: A63B

Abstract:
1. Balls and balloons and other inflatable objects for gymnastic or therapeutic use made of a plastic material comprising as stiffening material at least an inert mineral charge having a granulometry comprised between 0.02 μm and 500 μm, in an amount comprised between 0.50% and 30% by weight with respect to the total weight of the product, wherein said inert mineral charge is a perlite having the following composition, expressed as a percentage by weight: 71–74% SiO 13.0–14.5% Al 0.6–.0.8% Fe 3.0–4.0% Na 8.6–9.0% K 0.2–0.4% CaO 0.1–0.2% MgO.