This idea could "save the day" if you have a flat tire away from home and no way to change the tire to a spare.
Those patch kits you can buy for $5 at the auto stores really do work, but you need a way to reinflate the tire.
This could be a last resort way to do it, but you would need to use your tire iron to break the seal around the rim and use just the tiniest amount of some spray can solvent for inflation / controlled explosion.