Patent ID: 9671305
Date: 2017-06-06
CPC Classifications: B60C,C10M,F16F,G01M

Claim:
1. A composition for balancing tires that comprises a visco-plastic gel and solid bodies made from a material selected from the group consisting of polyolefins, polystyrene, polyvinyl chloride, polyamide, and glass having an apparent specific gravity in the range of 700-1000 kg/m 3 , an average smallest dimension of 3 mm and an average ratio between their smallest and largest dimension of α≦2, wherein the visco-plastic gel has a storage modulus (G′) between 1000 Pa and 25000 Pa at 22° C., a loss modulus (G″) smaller than the storage modulus, and a critical yield stress above 3 Pa at 22° C. and the visco-elastic gel comprises: (a) 80 to 95% by weight of a substance or mixture of substances that are selected from the group consisting of (b) 4 to 15% by weight of fumed silica having a BET surface in the range of 50 to 400 m