 In 1870, John and his brother Isaiah patented a process of making a "horn-like material" with the inclusion of cellulose nitrate and camphor.Alexander Parkes and Daniel Spill "(see below)" listed camphor during their earlier experiments, calling the resultant mix "xylonite", but it was the Hyatt brothers who recognized the value of camphor and its use as a plasticizer for cellulose nitrate.Isaiah Hyatt dubbed his material "celluloid" in 1872.