Thermochromic materials

Details Thermochromic materials Thermochromic materials

1981-11-24

1984-01-10

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

427148, 427150, C09D 1100

Patent

active

044251610

ABSTRACT:
A thermochromic material is described which comprises (a) an electron-donating, chromatic organic compound, (b) a compound capable of reversibly accepting an electron or electrons from the electron-donating, chromatic organic compound, (c) a compound controlling the temperature and sensitivity of coloration/decoloration of the thermochromic material and (d) a N-radical, P-radical, O-radical or S-radical cationic compound having an aromatic ring or rings which improves by light-fastness.

REFERENCES:
patent: 3251881 (1966-05-01), Middlesex et al.
patent: 3341464 (1967-09-01), Susi et al.
patent: 3615749 (1971-10-01), Cramer et al.
patent: 4028118 (1977-06-01), Nakasuji et al.
patent: 4232552 (1980-11-01), Hof et al.
patent: 4299727 (1981-11-01), Hof et al.
J. of Polymer Sci., vol. 17, pp. 139-145 (1979).
J. of Applied Sci., vol. 19, pp. 713-714 (1975).
J. of Applied Polymer Sci., vol. 18, pp. 1225-1232 (1974).
Journ. of Polymer Sci., vol. 11, pp. 1927-1937 (1973).
J. of American Chemical Society, vol. 100, pp. 6513-6515 (1978).

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