Tinting optical substrates

Details Tinting optical substrates Tinting optical substrates

2010-06-17

2011-10-25

Wu, David W (Department: 1762)

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...

C524S730000, C524S783000, C524S849000, C427S162000, C427S385500, C252S600000

Reexamination Certificate

active

08044141

ABSTRACT:
The present invention provides a method for tinting an optical substrate. The method includes the steps of applying a coating composition containing:a polymerisable monomer having a polyoxyalkylene backbone containing at least four contiguous oxyalkylene units, andan abrasion resistant agent and/or a high crosslinking polymerisable monomerto the optical substrate, polymerising the coating composition to form an abrasion resistant coating layer, and introducing a tinting compound into the coating layer to thereby tint the optical substrate. The invention also provides a coating composition and an optical substrate that is tinted according to the method of the invention.

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