Pigment finishing by microwave heating

Details Pigment finishing by microwave heating Pigment finishing by microwave heating

2006-12-12

2006-12-12

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S410000, C106S411000, C106S412000, C106S494000, C106S495000, C106S496000, C106S497000, C106S498000

Reexamination Certificate

active

07147703

ABSTRACT:
The invention relates to a process for aftertreating organic pigments which comprises heating the unground or ground organic crude pigment in water and/or organic solvents by means of microwave irradiation, under pressure if desired, so that the mass temperature of the mixture reaches 30 to 250° C.

REFERENCES:
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patent: 5190585 (1993-03-01), McCrae et al.
patent: 5472495 (1995-12-01), Schroeder
patent: 6031100 (2000-02-01), Badejo
patent: 6491796 (2002-12-01), Hu et al.
patent: 0905199 (1999-03-01), None
Lidstrom et al. “Microwave Assisted Organic Synthesis a Review,” Tetrahedron 57, pp. 9225-9284, (2001).
Shaabani, “Synthesis of Mettalophthalocyanines Under Solvent-Free Conditions Using Microwave Irradiation,” J. Chem. Research (5) pp. 672, 673 (1998).
Ungurenaso, “Improved Synthesis of Octaalkoxymetalphthalocyaninos (MC12, M⊂Si, Ge, Sn) Under Microwave Conditions,” Synthesis 10, pp. 1729, 1730 (1999).

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