Can you link to this research? Is there any tire company using this technology? If the people cared we could either pay a premium for them, or regulate
As for the "technology" of natural rubber, yes again, ALL military aircraft tires are only natural rubber, people know, when it matters use ONLY natural rubber.
Again, we use choose to use and pollute with synthetic rubber because it is more profitable for the companies to sell us more tires that ware out more quickly. They know this and its on purpose.
Which makes me highly doubt your claim that natural rubber tires are both superior AND cheaper. If you are right about that, I'm sure there are VCs who would be more than happy to fund you...