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Intellectual Property Law

: TinytechIP

US Patent 7632563 - Nanocomposites for aircraft windows

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http://www.freepatentsonline.com/7632563.html

This patent from PPG Industries Ohio teaches a polyurethane nanocomposite providing both high impact resistance and transparency to improve materials used in the construction of fighter aircraft. Claim 1 reads:

1. A transparent composite article having a maximum haze value less than 10% comprising:

(a) a polyurethane matrix and incorporated within the matrix

(b) nanofibers having a diameter of 50 to 5000 nanometers, the nanofibers being a crosslinked (meth)acrylic polymer containing silane groups that have reacted with moisture.

Full post as published by TinytechIP on December 16, 2009 (boomark / email).

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