Solid having reversibly invisible/visible thermochromic construction enclosed therein

• US 6,468,088 B1
• Filed: 10/30/2000
• Issued: 10/22/2002
• Est. Priority Date: 10/29/1999
• Status: Expired due to Fees

• Current Assignee: The Pilot Ink Co. Ltd (Berkshire Hathaway Incorporated)
• Original Assignee: The Pilot Ink Co. Ltd (Berkshire Hathaway Incorporated)
• Inventors: Matsunami, Nobuaki, Tomatsu, Tsutomu, Fujita, Katsuyuki
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US09/698,203
• Time in Patent Office: 722 Days
• Field of Search: 434/274, 434/295, 446/219, 446/268, 446/373, 446/385
• US Class Current: 434/295
• CPC Class Codes: B41M 5/305 with reversible electron-donor electron-acceptor compositions
• CPC Class Codes: C09K 9/02 Organic tenebrescent materials

Abstract

A solid has a reversibly invisible/visible thermochromic internal construction enclosed therein which is composed of a solid made of a transparent resin and a fluorescent internal construction showing the internal structure of the solid enclosed therein, wherein a reversible thermochromic layer containing a reversible thermochromic composition is formed on the surface of the solid, or the transparent resin contains a reversible thermochromic composition.

Claims

1. A solid having a reversibly invisible/visible thermochromic internal construction enclosed therein which is composed of a solid made of a transparent resin and a fluorescent internal construction showing the internal structure of said solid enclosed therein, wherein a reversible thermochromic layer containing a reversible thermochromic composition is formed on the surface of said solid, and said fluorescent internal construction is enclosed in a state that the external face thereof is in close contact with said solid.

2. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 1, wherein said fluorescent internal construction contains a luminous material or has a luminous layer containing a luminous material formed on the surface thereof.

3. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 1, wherein said solid is a doll or an animal figure and said internal construction is in the shape of the skeleton of said doll or animal figure.

4. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 1, wherein the reversible thermochromic composition is encapsulated in a microcapsule pigment.

5. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 4, wherein the average particle diameter of said microcapsule pigment is from 0.01 to 6 μ

m.

6. A solid having a reversibly invisible/visible thermochromic internal construction enclosed therein which is composed of a solid made of a transparent resin and a fluorescent internal construction showing the internal structure of said solid enclosed therein, wherein said transparent resin contains a reversible thermochromic composition, and said fluorescent internal construction is enclosed in a state that the external face thereof is in close contact with said solid.

7. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 6, wherein said fluorescent internal construction contains a luminous material or has a luminous layer containing a luminous material formed on the surface thereof.

8. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 6, wherein said solid is a doll or an animal figure and said internal construction is in the shape of the skeleton of said doll or animal figure.

9. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 6, wherein the reversible thermochromic composition is encapsulated in a microcapsule pigment.

10. The solid having a reversibly invisible/visible thermochromic internal construction enclosed therein as claimed in claim 9, wherein the average particle diameter of said microcapsule pigment is from 0.01 to 6 μ

m.