history question

what's the history of development of silica-reinforced tire rubbers? from where/whom did this breakthrough come?

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jim beam wrote:

Just guessing, I'd say it came from Degussa (company name, short for Deutsche Gold und Silber SA). They invented fumed silica in the quest for developing a "carbon white" process based on silica, analogous to the flame process for making carbon black.
When you consider that carbon black is the main reinforcing filler used in rubber, and Degussa is a major producer of carbon black, it could hardly have escaped their notice that this could be a potential application for silica.
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Mark Thorson wrote:

thanks! i found this on the web:
http://www.degussa.com/en/products/archive/2004_06_15_carbon_black.html
and this:
http://www.autoemirates.com/michelin/Chapter5.asp
is there anything else you know of that sheds a little more light? i've spent hours on google, but it's mostly propaganda pieces. anything with a little more meat?
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jim beam wrote:

You should be able to reconstruct the history of this technology from the patent literature, in as much depth as you want:
http://www.uspto.gov/patft/index.html
You can start with U.S. Patent 4,297,145, searching both the patents it references and the patents which reference it.
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Mark Thorson wrote:

thanks mark!
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