Thermochromic laminate member and toy utilizing the same
US5219625A · kind A · utility
95Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jul 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermochromic laminate member comprises a thin transparent iridescent film laminated on a thermochromic layer 2, and exhibits rainbow-color pattern. The thermochromic layer shows reversible change between a first colored state and a second colored state by a temperature change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.