[dim_it:pic_desc]Around 1839, the American Charles Goodyear (1800-1860) had developed the vulcanisation process (at the same time as the Englishman Thomas Hancock, 1786-1865), with which elastic rubber could be produced from plastic rubber. We now know that the discovery Goodyear and Hancock made proved to be a milestone in plastics research. (Source: wikipedia)[/dim_it:pic_desc]