The story behind this week's ranking is growth and consolidation. This year's film and sheet ranking of 163 North American companies shows a 3 percent gain, adding $2 billion over last year's total.

Using a technique known as nanoimprint lithography, researchers at the University of Wisconsin-Madison (UW Madison) and partners have created a breakthrough method to allow the simple manufacture of ...

Sheets of plastic that fold into tiny pyramids, boxes and spheres when water is added have been created by French researchers. They think the technique could one day be used to mass-produce the ...