申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0648814A1
公开(公告)日:1995-04-19
A polarizing film which comprises, in a film substrate, at least one dye selected from:
1) a dye of formula (1):
Q¹-N=N-Q²-X-Q³-N=N-Q⁴ (1)
wherein:
Q¹ and Q⁴, which are the same or different, are each unsubstituted or substituted phenyl or naphthyl;
Q² and Q³, which are the same or different, are each unsubstituted or substituted phenylene; and
X is -N=N- or
provided that, when X is -N=N- and both of Q² and Q³ are unsubstituted phenylene, at least one of Q¹ and Q⁴ is not phenyl which is substituted only by an alkyl-substituted amino or is not phenyl substituted by an alkyl-substituted amino and by methyl; and
2) a dye of formula (2):
wherein:
each Me, which are the same or different, is a transition metal selected from copper, nickel, zinc and iron;
Q⁵ and Q⁶, which are the same or different, are each an unsubstituted or substituted 1,2-naphthalene group;
Y is -N=N- or
and
R¹ and R², which are the same or different, are each hydrogen, lower alkyl, lower alkoxy or sulfo.
一种偏振薄膜,在薄膜基材中包含至少一种选自以下各项的染料
1) 式 (1) 的染料:
q¹-n=n-q²-x-q³-n=n-q⁴ (1)
其中
相同或不同的 Q¹ 和 Q⁴ 分别为未取代或取代的苯基或萘基;
相同或不同的 Q² 和 Q³ 各自是未取代或取代的苯基;以及
X 为-N=N- 或
条件是,当 X 为-N=N-且 Q² 和 Q³ 均为未取代的亚苯基时,Q¹ 和 Q⁴ 中至少有一个不是仅被烷基取代的氨基取代的苯基,也不是被烷基取代的氨基和甲基取代的苯基;以及
2) 式(2)的染料:
其中
每个相同或不同的 Me 是选自铜、镍、锌和铁的过渡金属;
相同或不同的 Q⁵ 和 Q⁶ 各为未取代或取代的 1,2-萘基;
Y 是 -N=N- 或
和
相同或不同的 R¹ 和 R² 分别是氢、低级烷基、低级烷氧基或磺基。