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Adhesives Ingredients
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What Electronic Book Readers Are Doing for Adhesives

SpecialChem / Andy Extance – Nov 4, 2009

The developer of the display for Amazon's Kindle electronic book reader has faced big problems caused by its choice of polyurethane laminating adhesive. It seems that it has tackled these by developing their own, including an entirely new kind of conductive formulation. In order to access the potentially huge electronic-paper market, can adhesive manufacturers learn and benefit from the Kindle's struggles? Electrophoresis is the movement of particles in response to an electric field. The displays used in the Kindle were developed by MIT spin-out E Ink, and exploit this very phenomenon with coloured particles in what it calls an electro-optic layer1. So far, these displays are manufactured using a lamination process, with the electro-optic layer sandwiched between two electrode layers. Lamination adhesives are used to attach at least one of those electrode layers.

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