发明名称 |
MULTILAYER OPTICAL FILM, METHOD OF MAKING THE SAME, AND TRANSACTION CARD HAVING THE SAME |
摘要 |
A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed. |
申请公布号 |
WO2007149955(A2) |
申请公布日期 |
2007.12.27 |
申请号 |
WO2007US71728 |
申请日期 |
2007.06.21 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
LIU, RICHARD Y.,;HEBRINK, TIMOTHY J.,;JOHNSON, STEPHEN A.,;NORTH, DIANE, |
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