| abstract |
A laminate structure having a first glass layer, a second glass layer, and at least one polymer interlayer intermediate the first and second glass layers. The polymer interlayer can include a first region having a first modulus of elasticity and a second region having a second modulus of elasticity. The second modulus of elasticity can be greater than the first modulus of elasticity. In some embodiments, the first region can be a central region of the polymer interlayer and the second region can be a peripheral region of the polymer interlayer encompassing the first region. |