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公开(公告)号:EP2064580A2
公开(公告)日:2009-06-03
申请号:EP07814732.9
申请日:2007-09-07
IPC分类号: G02B26/00
CPC分类号: G02F1/167 , C08G18/0823 , C08G18/12 , C08G18/348 , C08G18/4277 , C08G18/6659 , C08G18/758 , C08G18/3228
摘要: A polyurethane is formed from an isocyanate and a polyester diol having a molecular weight less than about 2000, or a polyester diol comprising two polyester diol segments connected by a steric hindrance group, each of the polyester diol segments having a molecular weight less than about 2000. The polyurethane is useful as a binder in electro-optic displays, and in components used to form such displays.