Reversible thermochromic composition

Details Reversible thermochromic composition Reversible thermochromic composition

1994-12-23

1996-09-24

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 22B, 106 23B, 106311, 106498, 252 3416, 2524081, 252583, 252586, 252600, 252962, C09D 1100

Patent

active

055587003

ABSTRACT:
A reversible thermochromic composition develops fluorescent color of yellow, yellowish orange, orange, reddish orange, or red with a high color density and high color brightness, yet gives no residual color under non-color-developing conditions, and has remarkably improved light resistance. The reversible thermochromic composition, comprising a solubilized mixture of three components of (a) an electron-donating color-developing organic compound selected from pyridine types, quinazoline types, and bisquinazoline types of compound, (b) an electron-accepting compound for the electron-donating color-developing organic compound, and (c) a compound serving as a reaction medium for causing reversibly an electron exchange reaction between the components (a) and (b) within a specified temperature range.

REFERENCES:
patent: 1592148 (1926-07-01), Munn
patent: 4028118 (1977-06-01), Nakasuji et al.
patent: 4176273 (1979-11-01), Fujie
patent: 4717710 (1988-01-01), Shimizu et al.
patent: 4720301 (1988-01-01), Kito et al.
patent: 4725462 (1988-02-01), Kimura
patent: 4818215 (1989-04-01), Taga
patent: 4820683 (1989-04-01), Vervacke et al.
patent: 4865648 (1989-09-01), Kito et al.
patent: 4895827 (1990-01-01), Vervacke et al.
patent: 4917643 (1990-04-01), Hippely
patent: 4920991 (1990-05-01), Shibahashi et al.
patent: 5079049 (1992-01-01), Kito et al.
Chemical Abstracts vol. 73, No. 40266, "Fluorescence thermochromism of copper(I) compounds", Hardt, Horst D. et al. (Inst. Anorg. Chem., Saarland Univ., Saarbruecken, Ger.). Naturwissenschaften, 57(5), 244, 1970.

Affiliated with

Also associated with

Rating

Reversible thermochromic composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reversible thermochromic composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reversible thermochromic composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1926069