Compositions – Light transmission modifying compositions – Displaying color change
Reexamination Certificate
2007-07-24
2007-07-24
Gulakowski, Randy (Department: 1712)
Compositions
Light transmission modifying compositions
Displaying color change
C252S582000, C359S326000, C549S331000, C549S381000
Reexamination Certificate
active
11121293
ABSTRACT:
The invention related to a photochromic polymeric composition comprising a polymer matrix and a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendant oligomer group to provide a rate of fade of the photochromic polymeric composition which is significantly changed when compared with the corresponding composition comprising the photochromic compound without said pendent oligomer. The invention also relates to a photochromic compound which is an adduct comprising a photochromic moiety and at least one pendent oligomer.
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Evans Richard Alexander
Hanley Tracey Lee
Lewis David Andrew
Skidmore Melissa Ann
Yee Lachlan Hartley
Gulakowski Randy
Kugel Timothy J.
Polymers Australia Pty Ltd.
Smith , Gambrell & Russell, LLP
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