Patents
In the invention there is provided a process for the manufacture of a Passive Energy Device (PED) from a hysteretic shear polymer. The hysteretic shear polymer is based on Indian Standard Natural Rubber (ISNR). The hysteretic shear polymer is prepared by processing the ISNR at a temperature in the range of 50°C to 100°C with suitable additives, such as china clay, Semi-Reinforcing Furnace (SRF) carbon black, zinc oxide, steric acid, vulcaniser sulphur, Tetra Methyl Thiuram (TMT), 2-mercapto benzo thiazole (MBT) and spikel oil. The hysteretic shear polymer so obtained is fabricated to make a Passive Energy Device (PED). The passive energy device thus obtained provides shear strain as high as 200% linearity and shear strength > 25 kg per sq. cm.which and is useful for dissipating shear load due to seismic forces in buildings.