Patent ID: 7895976

Claim:
An animal litter comprising a plurality of granular materials wherein each of the granular materials is made by compressing and molding a mixture of silica gel powder and micronized resin, a maximum outer diameter of each of the granular materials is 3 mm to 20 mm, and each of the granular materials is substantially cylindrical shape having a top face, a bottom face and a side face, wherein the top face and the bottom face each comprise a central portion that is cupped outward, and wherein the outer edge of each of the top face and the bottom face comprises a flat portion that borders the cupped portion, wherein a mass of the granular materials has a liquid absorptive property so as to reduce rate of absorption, whereby the mass absorbs in three seconds 20% to 70% of a maximum absorbable amount of liquid that can be absorbed by the mass, and the maximum absorbable amount of liquid is 0.3 times to 4.0 times the weight of the mass, wherein the amount of liquid absorbed by the mass is measured according to the following steps: a) a 100g of granular materials is measured out and placed inside a draining container and pressed from above by a board which acts as a weight; b) the entire draining container is immersed in a water tank, which is filled with saline solution, for a predetermined time to a depth, wherein the granular materials are completely immersed, wherein the predetermined time is three seconds for measuring the mass absorbs in three seconds and, wherein the predetermined time is ten minutes for measuring the maximum absorbable amount of liquid; c) the draining container is removed from the water, the board is removed, the granular materials are transferred onto a layer paper towels, and then the granular materials are sandwiched between layers of paper towels, and excess water drops on the surface are removed for a period of three seconds; d) the granular materials are again transferred to a fresh paper towel, and water drops are removed for a period of ten seconds; and e) weight after wiping minus 100 g is the absorbable amount of liquid per 100 g of granular materials.