Apparatus for changing color

Details Apparatus for changing color Apparatus for changing color

1976-11-08

1979-02-13

Padgett, Benjamin R.

Compositions

Radioactive compositions

Nuclear reactor fuel

252408, 350353, 350354, 350356, G02F 117, G02F 123

Patent

active

041392744

ABSTRACT:
This invention relates to an apparatus for changing color utilizing new materials, the color of which changes, disappears or appears at the stimulation by, for example, light, heat, ions, electricity, pressure or radioactive rays. The materials are new styryl-like compounds having the below mentioned chemical formula: ##STR1## Wherein Q represents a benzene ring with or without substituted radicals and/or condensed ring(s); R.sub.1 and R.sub.2 represent lower alkyl radicals, hydroxyalkyl radicals or alkoxyalkyl radicals of the same or different kinds,; R.sub.3 represents hydrogen, an alkyl radical, alkoxy radical, halogen, nitrile radical, aromatic radical or phenoxy radical; Y represents oxygen (O) or sulphur (S); Z represents an alkylene radical of 2 to 4 carbon atoms with or without alkyl substitution radical(s) necessary to form a ring structure together with ##STR2## A represents a condensation reaction residue of an aromatic aldehyde, heterocyclic aldehyde, aromatic nitroso compound, or heterocyclic nitroso compound.

REFERENCES:
patent: 3317266 (1967-05-01), Heller et al.
patent: 3796569 (1974-03-01), Kondo et al.
patent: 3850949 (1974-11-01), Ono et al.
patent: 3930851 (1976-01-01), Ono et al.
patent: 3963314 (1976-06-01), Yamashita
patent: 3975379 (1976-08-01), Schmitt
patent: 4003633 (1977-01-01), Yamashita
Zaitseva, E. L., Chemischer Informationsdienst, Ausgabe B, Organische Chemie, Report No. 5-262, pp. 99-100 (1974).

Affiliated with

Also associated with

Rating

Apparatus for changing color does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-688529