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Clean Gum - Chewing gum that does not dirty

E 'was presented to the York Festival of Science from the University of Bristol Clean Gum. Basically it is a chewing gum that has been modified the chemical composition to ensure that less stick to porous and above is easier to remove, since the rubber biodegradable.
to invent a new chewing gum and 'was a company called Revolymer founded to be a commercial arm of the University of Bristol. The Revolymer has already run tests on particularly busy roads (in agreement with the city authorities), which shows that many tires are off "spontaneously" the ground within 24 hours , while the normal rubber are attacked in three out of four cases .
I think is a good thing, because big cities are spending millions and millions of euro each year to clean the walls and flooring of the chewing gum from sidewalks that remain stuck there, and using environmentally harmful chemicals!
The Clean Gum should enter the market as early as 2008 !

Information found at:
> www.ecoblog.it