A urea based granule blend for ice-melting and reducing granule caking

摘要

A urea based granule blend (B1) comprises mixture of substantially pure urea granules (G1) having an ice-melting property and formaldehyde coated urea granules (G2). The blend is configured for ice-melting when in use and reducing granule caking when in storage. An independent claim is included for a method (M1) of ice melting using (G1) involving mixing (G1) with (G2); reducing the granule caking using (G2); initiating ice melting using (G1); and activating (G2) for ice melting using (G1).