Photochromic compositions and light transmissible articles
申请人:Evans Alexander Richard
公开号:US20050269556A1
公开(公告)日:2005-12-08
The invention relates 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.
Photochromic Compositions and Light Transmissible Articles
申请人:Evans Alexander Richard
公开号:US20080006798A1
公开(公告)日:2008-01-10
The invention relates 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.