Doped zinc oxide-based pigment

Details Doped zinc oxide-based pigment Doped zinc oxide-based pigment

1990-02-20

1992-03-10

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

423622, 252 623ZT, 106426, C09C 104

Patent

active

050946935

ABSTRACT:
There is disclosed a doped zinc oxide pigment composition and method of preparing said composition, wherein the dopant is uniformly dispersed in the zinc oxide matrix in the form of a solid solution such that the mechanism by which undoped zinc oxide absorbs blue or near ultraviolet light is suppressed, thereby yielding a whiter composition. Preferred dopants are Al and Li.

REFERENCES:
patent: 3346409 (1967-10-01), Walrond
patent: 3515686 (1970-06-01), Bowman
patent: 3538022 (1970-11-01), Bowman
patent: 4574003 (1986-03-01), Gerk

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