Method for producing polarizing lens with high refractive index
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United States of America Patent
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Jan 30, 2018
Grant Date -
Mar 15, 2007
app pub date -
May 12, 2004
filing date -
May 12, 2003
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Abstract
A manufacturing method for a polyurethane based high refractive index polarizing lens comprising polyisocyanate and polythiol, that has no problems such as the generation of bubbles, and has excellent adhesiveness. A manufacturing method for high refractive index polarizing lenses including a process for forming lens layers comprising a polyurethane based polymer formed from polyisocyanate and polythiol on both surfaces of a polarizing film, characterized by using a polarizing film whereof the water content is 4.5 wt % or less as the aforementioned polarizing film.
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