Preparation of pigment concentrates

Details Preparation of pigment concentrates Preparation of pigment concentrates

1978-08-23

1981-01-13

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 342, 260 4247, 260 4252, 260 4256, 260 4257, C08J 320

Patent

active

042448638

ABSTRACT:
The application relates to a process for the preparation of pigment concentrates, preferably pulverulent pigment concentrates, which is characterized in that the polymer present in an intimate mixture, free from non-ionic surface-active agents, of an aqueous pigment suspension and an aqueous latex of a polymer or polycondensate containing carboxyl groups, or an aqueous solution of a polymer or polycondensate containing carboxyl groups, is coagulated by adding an electrolyte, while thoroughly mixing intensively, and the coagulate containing the pigment is then separated off in a known manner and optionally dried.
The pigment concentrates are suitable for pigmenting aqueous media and printing pastes for pigment printing of textiles.

REFERENCES:
patent: 3108984 (1963-10-01), Romesberg et al.
patent: 3689451 (1972-09-01), Burke, Jr.
patent: 3700620 (1972-10-01), Burke, Jr.
patent: 3978016 (1976-08-01), Perronin et al.
patent: 4104229 (1978-08-01), Sekmakas et al.

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