PHOTOCHROMIC MATERIALS COMPRISING HALOALKYL GROUPS
申请人:Petrovskaia Olga G.
公开号:US20070278461A1
公开(公告)日:2007-12-06
Various non-limiting embodiments of the present invention relate to photochromic materials which include a haloalkyl group. More particularly, various non-limiting embodiments disclosed herein provide photochromic materials including an indeno-fused naphthopyran, such as, an indeno[2′,3′:3,4]naphtho[1,2-b] pyran, and a haloalkyl group bonded at the 13-position thereof, wherein the haloalkyl group is a perhalogenated group or a group represented by —O(CH
2
)
a
(CX
2
)
b
CT
3
, wherein T is a halogen, each X is independently hydrogen or halogen, a is an integer ranging from 1 to 10, and b is an integer ranging from 1 to 10. Other non-limiting embodiments disclosed herein provide photochromic composition and photochromic articles, such as, but not limited to ophthalmic lens, which include the disclosed photochromic materials and methods of making the same.
The present invention relates to photochromic materials that include a photochromic compound that includes a photochromic substituent (e.g., an indeno-fused naphthopyran) and at least one pendent silane group, which is bonded to the photochromic substituent. The pendent silane groups are selected from certain pendent siloxy-silane groups and/or pendent alkoxy-silane groups represented by general formulas (I) and/or (II) as described in further detail herein. The present invention also relates to photochromic articles, such as photochromic optical elements (e.g., photochromic lenses), and photochromic coating compositions (e.g., curable photochromic coating compositions), that include the photochromic materials of the present invention. The photochromic materials of the present invention have improved compatibility with compositions into which they may be incorporated, for example, coating compositions, such as urethane coating compositions.