申请人:Kumar Anil
公开号:US20050004361A1
公开(公告)日:2005-01-06
Various non-limiting embodiments disclosed herein relate generally to photochromic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. Other non-limiting embodiments relate to photochromic-dichroic compounds, which may be thermally reversible or non-thermally reversible, and articles made therefrom. For example, one non-limiting embodiment provides a thermally reversible, photochromic compound adapted to have at least a first state and a second state, wherein the thermally reversible, photochromic compound has an average absorption ratio greater than 2.3 in at least one state as determined according to CELL METHOD. Another non-limiting embodiment provides a photochromic compound comprising: (a) at least one photochromic group chosen from a pyran, an oxazine, and a fulgide; and (b) at least one lengthening agent L attached to the at least one photochromic group and represented by the formula —[S
1
]
c
-[Q
1
-[S
2
]
d
]
d′
-[Q
2
-[S
3
]
e
]
e′
-[Q
3
-[S
4
]
f
]
f′
—S
5
—P, which is described herein.
本文披露的各种非限定实施例通常涉及光致变色化合物,可以是热可逆或非热可逆的,并且由此制成的物品。其他非限定实施例涉及光致-二色化合物,可以是热可逆或非热可逆的,并且由此制成的物品。例如,一个非限定实施例提供了一种热可逆的、光致变色化合物,适用于至少具有第一状态和第二状态,其中该热可逆的、光致变色化合物在至少一个状态下的平均吸收比大于2.3,根据CELL METHOD确定。另一个非限定实施例提供了一种光致变色化合物,包括:(a)至少一种从吡喃、噁唑和富里德中选择的光致变色基团;以及(b)连接到至少一种光致变色基团的至少一种延长剂L,由以下公式表示:—[S1]c-[Q1-[S2]d]d′-[Q2-[S3]e]e′-[Q3-[S4]f]f′—S5—P,如本文所述。