Patent ID: 6110538
Filing Date: 2000-08-29
Classification: G02B,G09F

Abstract:
A method of making rotating element sheet material comprising:a) providing a sheet of sheet material comprising a substrate with a surface and at least one rotatable element disposed therein, said element having an optical and electrical anisotropy, and comprising at least two portions, wherein at least one portion is magnetized,b) orienting the at least one element such that the at least one magnetized portion is disposed towards the surface,c) applying a layer of hardenable mixture containing a plurality of magnetic particles to the surface,d) migrating at least a portion of the plurality of magnetic particles to the area of the layer in the vicinity of the magnetized portion of the rotatable element,e) solidifying said layer to trap at least a portion of the plurality of magnetic particles in said layer in the area of the layer in the vicinity of the magnetized portion of the rotatable element to form a magnetic pad.