Abstract: An optical device having a first optical member, a second optical member, and an antistatic layer disposed between the first optical member and the second optical member wherein the antistatic layer contains the reaction product of a mixture comprising at least one polymerizable onium salt having an anion and at least one non-onium polymerizable monomer, oligomer, or polymer.
October 9, 2017
Date of Patent:
September 7, 2021
3M Innovative Properties Company
Thomas P. Klun, Brandt K. Carter, Michael K. Gerlach, Mahfuza B. Ali, Mark J. Pellerite, Thomas M. Snyder, William M. Lamanna
Abstract: A glass roll includes at least one glass film and one intermediate material one on top of the other in at least two layers onto a winding core. The glass film layers are held in place by the intermediate material layers. The glass roll is produced with a method including provision of a glass film, a winding core and a compressible intermediate material. At least one inside layer of the intermediate material is wound onto the winding core. The glass film and the intermediate material are wound onto the winding core in such a manner that the glass film is wound onto the winding core in alternating layers with the intermediate material. The intermediate material and/or the glass film is wound at a tensile stress acting in a longitudinal direction which causes a compression of the intermediate material and holds the glass film end in place on the glass roll.
May 14, 2018
Date of Patent:
August 17, 2021
Angelika Ullmann, Georg Sparschuh, Gregor Kübart, Holger Wegener, Jürgen Vogt, Rainer Schwertfeger, Thomas Wiegel