Photochromic curable composition and cured articles thereof

Details Photochromic curable composition and cured articles thereof Photochromic curable composition and cured articles thereof

2006-08-08

2006-08-08

Gulakowski, Randy (Department: 1712)

Compositions

Light transmission modifying compositions

Displaying color change

C252S582000, C526S204000

Reexamination Certificate

active

07087195

ABSTRACT:
There is provided a method of preventing decreases in the developed color density and color fading speed of an organic photochromic compound without lowering the mechanical and optical physical properties such as hardness of a cured product when the cured product which has the organic photochromic compound dispersed in a polymer matrix is obtained. A photochromic cured product is obtained by curing a photochromic curable composition which comprises a polymerizable monomer having a biphenyl skeleton such as p-phenylphenyl methacrylate, a multifunctional polymerizable monomer having no biphenyl skeleton such as a mixture of trimethylolpropane trimethacrylate and triethylene glycol dimethacrylate, and an organic photochromic compound.

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C.B. McArdle; Applied Photochromic Polymer Systems, p. 50 and 63-69.

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