When is the injection molding developed in history

In 1872, American inventor John Wesley Hyatt, together with his brother Isaiah, patented the first injection moulding machine.


in 1903, The German chemists Arthur Eichengrün and Theodore Becker invented the first soluble forms of cellulose acetate.


In 1939, Arthur Eichengrün patented the injection moulding of plasticised cellulose acetate.


In the 1970s, American inventor James Watson Hendry built the first screw injection machine, and went on to develop the first gas-assisted injection moulding process.


By 1990, aluminium moulds were widely used in injection moulding.

Today, screw injection machines account for the vast majority of all injection machines