Pressure sensitive material
    4.
    发明授权

    公开(公告)号:US07176272B2

    公开(公告)日:2007-02-13

    申请号:US10290739

    申请日:2002-11-08

    IPC分类号: C08G18/30

    摘要: A polymeric material which exhibits an optically detectable response to changes in pressure. The material includes an elastomer selected from the group of a polyurethane, a polyacrylate, and a silicone, in combination with a photochemical system. The photochemical system may be in the form of an exciplex or a fluorescence resonance energy transfer. Both photochemical systems are reversible processes. Synthesis of the elastomer and the photochemical system produce a material which forms an excited charge transfer complex when subject to an increase in pressure and a less excited charge transfer complex as pressure is lowered.