| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flexible light guide plate capable of being excellent in reproductivity of light source colors over a long period from an initial time and efficiently light-emitting in a uniform state and being flexible and used by bending in an arbitrary shape. <P>SOLUTION: In the flexible light guide plate made of thermosetting polyurethane, the thermosetting polyurethane is provided by making a urethane prepolymer made by reacting at least one of polyol components selected from polyether polyol, polycaprolactone polyol, and polycarbonate polyol, and an aliphatic polyisocyanate component thermosetting under existence of a curing agent, or a mixture of the curing agent and the polyol component, and a non-amine system catalyst. <P>COPYRIGHT: (C)2013,JPO&INPIT |
