Thus spake "Jean-Christophe Helary" <[email protected]> on 4/23/14 5:54 PM:
>On Apr 24, 2014, at 9:26, Robert J. Lang <[email protected]> wrote: > >> How about a eco-friendly foldable paper food-leftover container that you >> can bring with you to a restaurant for when you don't want to use the >> restaurant's non-eco-friendly styrofoam take-out containers? Design >> requirements: it must fold flat so you can always have one in your >>pocket >> or purse, it needs to be leak-proof, and of course, it has to make the >> other diners jealous and awestruck. > >What kind of material could be used to make that leak-proof eco friendly >container ? >Most papers would not be leak-proof and eco-friendly means not using >plastic (coated) materials. There are starch-based plastics that biodegrade quite nicely. But your point is a good one. A former client advertised their folded, cardboardish container as being much more eco-friendly than alternatives like blow-molded plastic, but in fact the "cardboardish" material was a marvel of modern chemical engineering that included quite the menagerie of polymers and barrier layers. Robert
