Optically clear abrasion resistant polymer-ceramic composite...

Details Optically clear abrasion resistant polymer-ceramic composite... Optically clear abrasion resistant polymer-ceramic composite...

2005-09-06

2005-09-06

Moore, Margaret G. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S424000, C524S428000, C524S433000, C524S437000, C524S497000, C524S588000, C106S287120, C106S287130, C106S287160, C106S287190

Reexamination Certificate

active

06939908

ABSTRACT:
A transparent and abrasion resistant coating which includes a transparent matrix, relatively large-sized abrasion resistant ceramic particles and nanosized ceramic particles for raising the index of refraction of the matrix to that of the abrasion resistant ceramic particles. The present coating provides a scratch resistant coatings for use on plastic substrates, which are needed in a variety of applications such as, high index ophthalmic and sportswear lenses, as well as automobile side windows and aircraft cockpit applications.

REFERENCES:
patent: 5789082 (1998-08-01), Treadway
patent: 5789476 (1998-08-01), Iryo et al.
patent: 6358612 (2002-03-01), Bier et al.
patent: 6538092 (2003-03-01), Terry et al.

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