On 24 March 1933[3] two scientists conducted an experiment that produced polythene (polyethylene). Benzaldehyde was reacted with ethene (ethylene) at 2,000 atmospheres pressure. Sir Michael Perrin worked with this group of scientists from October 1933 until 1938.[4] In December 1935 he conducted an experiment that allowed polythene to be created. Polythene is the world's most widespread plastic.
In 1958, manufacture of polythene was moved to ICI's plant in Hertfordshire (ICI Plastics).