Rare earth sesquisulfide compositions comprising alkali/alkaline

Details Rare earth sesquisulfide compositions comprising alkali/alkaline Rare earth sesquisulfide compositions comprising alkali/alkaline

1992-12-04

1994-09-20

Klemanski, Helene

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106 1445, 10628732, 423263, 423265, 423266, 423275, C09C 102

Patent

active

053485815

ABSTRACT:
Unique compositions based on at least one crystalline rare earth sesquisulfide, well suited for the coloration of a wide variety of substrates, e.g., cosmetics, plastics, paints and rubbers, contain a dopant amount of at least one alkali/alkaline earth metal, at least a fraction of which being included within the crystal lattice of such at least one rare earth sesquisulfide.

REFERENCES:
patent: 4545967 (1985-10-01), Reynolds et al.
patent: 4765931 (1988-08-01), Saunders et al.
Banks, "Cerium sulfide and selenide and some of their solid solutions", 1952, vol. 74.
Ballestraci, (Bull. Soc. Franc. Miner. Crist) 1965, pp. 207-210; 1964, pp. 512-517.
Chemical Abstracts, vol. 94, No. 4, Jan. 1981, Columbus, Ohio, abstract No. 24178F, H. Seta et al; Preparation of cerium sesquisulfide, p. 584.
Materials Research Bulletin, vol. 19, No. 9, 1984, pp. 1215-1220; M. Sato, Preparation & Structure of sodium rare-earth sulfides, p. 1216.
Gmelin Handbook of Inorganic Chemistry, 8th Edition, system No. 39, part C7, Berlin, 1983; pp. 597-605.
Int. Soc. Opt. Eng; Proc. SPIE, vol. 683, 1986, pp. 72-78, J. K. Saunders et al, p. 18.
Acta Crystallographyca, vol. 19, 1965, pp. 14-19, J. Flahaut et al, p. 18.
C.R. Acad. Sci., Serie II, vol. 307, No. 14, Nov. 7, 1988, Paris, pp. 1625-1628, P. Lemoine et al.

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