Bleaching and dyeing; fluid treatment and chemical modification – Nontextile – dyeing process or product – including inorganic... – Inorganic substrate
Patent
1986-12-29
1988-06-14
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Nontextile, dyeing process or product, including inorganic...
Inorganic substrate
8522, 8609, 8685, 8581, D06P 380
Patent
active
047509090
ABSTRACT:
A liquid dye composition comprising an organic solvent-soluble premetallized azo dyestuff in a volatile organic solvent medium, said composition further containing a finely divided silica thickening agent and/or xylol, toluol, perchlorethylene or mineral spirits or any mixture thereof. A process for coloring a porous substrate, preferably stone, comprising applying thereto a liquid dye composition comprising an organic solvent-soluble premetallized azo dyestuff in a volatile organic solvent medium, said composition being preferably as described above, and allowing the composition to penetrate the substrate, preferably followed by treating the penetrated substrate with an aqueous solution of a copper salt or a polymerizable organic siliconate, and then removing any excess unpenetrated composition from the substrate.
REFERENCES:
patent: 3079209 (1963-02-01), Boggus
patent: 3092836 (1963-06-01), Boggus
patent: 3425784 (1969-02-01), Streck
patent: 3441362 (1969-04-01), Streck
patent: 3494715 (1970-02-01), Streck
patent: 3545909 (1970-12-01), Gaguardi
patent: 4430091 (1984-02-01), Streck
"Colour Index, " Third Edition, (Soc. Dyers and Colourists) 1971, vol. 4, C.I. 12195; C.I. 15675.
Clingman A. Lionel
Leavitt Michael A.
Leavitt Samson B.
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