Patent ID: 6489018
Filing Date: 2002-12-03
Classification: B41M,C09K,Y10S,Y10T

Abstract:
A reversibly thermochromic light-transmitting laminate member which comprises a substrate and formed thereon a reversibly thermochromic layer comprising a transparent resin and fixedly dispersed therein a reversibly thermochromic microencapsulated pigment containing a reversibly thermochromic composition comprising (a) an electron-donating color-forming organic compound, (b) an electron-accepting compound, and (c) a reaction medium determining the temperatures at which the color reactions of component (a) with component (b) take place, the reversibly thermochromic microencapsulated pigment being a deformable pigment which has an average particle diameter of from 1.0 to 5.0 &mgr;m, the transparent resin having a tensile elongation at break of 400% or higher.