MIT researchers have managed to create a new polymer material called 2DPA-1 that has twice the yield strength of steel and up to six times the deformation resistance of bulletproof glass. The unorthodox sheet polymer can be easily spun in mass quantities and used as ultradurable coating for phones and cars, or even as a building material.
https://www.notebookcheck.net/MIT-invents-new-stronger-than-steel-polymer-that-can-be-mass-produced-easily-to-toughen-phones-cars-or-even-buildings.597893.0.html