Reversibly thermochromic light-shielding/light-transmitting laminate member
AssigneeThe Pilot Ink Co., Ltd.
InventorsKuniyuki Senga, Jun Sugai, Shigehiro Koide
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Abstract
A reversibly thermochromic light-shielding/light-transmitting laminate member. More particularly, the invention relates to a reversibly thermochromic light-shielding/light-transmitting laminate member which changes not only in color but in transmittance with temperature.
Claims5
A reversibly thermochromic light-shielding/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 0.1 to 5.0 μm, the transparent resin having a tensile elongation at break of 350% or lower.
Dependencies are inferred from the claim text.