Exterior grade titanium dioxide coated mica

Details Exterior grade titanium dioxide coated mica Exterior grade titanium dioxide coated mica

1977-12-27

1979-01-16

McCarthy, Helen

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106300, 106302, 106308B, 260 4214, C09C 100, C09C 134, C09C 136

Patent

active

041347765

ABSTRACT:
This invention relates to a titanium dioxide coated mica platey pigment which displays high luster or reflectivity in a suitable coating on a smooth surface, and which has a high resistance to change in appearance when subjected to weatherability stress. The titanium dioxide must be in the rutile crystal structure, the calcining of the titanium dioxide coated mica product must be carried out under rather extended time-temperature conditions, and the product requires a post-treatment with chromium III hydroxide.

REFERENCES:
patent: 3087828 (1963-04-01), Linton
patent: 3832208 (1974-08-01), Jackson
patent: 3960589 (1976-06-01), Morrison et al.
patent: 4022632 (1977-05-01), Newland et al.
patent: 4038099 (1977-07-01), DeLuca et al.
Bonsack, J. P. - "Titanium Dioxide Pigment-Liquid-Liquid Extraction of Chromium"- Ind. Eng. Chem. Prod. Res. Develop, vol. 9 (3) (1970) pp. 398-403.

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