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EP0069895A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for conditioning a pigment

Assignee: Bayer Corp
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Filing: 1982-06-25
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Granted: —
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Expires: 2002-06-25
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Abstract

Abstract Translated from German Verfahren zur Konditionierung eines polycyclischen Pigments oder eines Phthalocyaningrün-Pigments, dadurch gekennzeichnet, daß man ein rohes oder präkonditioniertes polycyclisches Pigment oder ein rohes oder präkonditioniertes Phthalocyaningrün-Pigment in Gegenwart von a) mindestens einem Mahlhilfsmittel aus der Gruppe Natriumsulfat, Natriumchlorid, Aluminiumsulfat, b) mindestens einem Glykol der Formeln HO(CH2CH2O)xH HO(CH2CH2CH2O)yH oder HO(CH(CH3)CH2O)yH in denen x 2-20, vorzugsweise 4-10 und y 1-20, vorzugsweise 2-10, bezeichnen oder einem Gemisch dieser Glykole und c) 0,05-2 Gew.-Teile, vorzugsweise 0,1-1,0 Gew.-Teile, bezogen auf 1 Gew.-Teil des Rohpigments, mindestens eines Halogenids, vorzugsweise eines Chlorids eines Metalls der Gruppe IIa des Periodensystems mahlt. Process for the conditioning of a polycyclic pigment or a phthalocyanine green pigment, characterized in that a crude or preconditioned polycyclic pigment or a crude or preconditioned phthalocyanine green pigment in the presence of a) at least one grinding aid from the group consisting of sodium sulfate, sodium chloride, aluminum sulfate, b) at least one glycol of the formulas HO (CH2CH2O) xH HO (CH2CH2CH2O) yH or HO (CH (CH3) CH2O) yH in which x denotes 2-20, preferably 4-10 and y 1-20, preferably 2-10, or one Mixture of these glycols and c) 0.05-2 parts by weight, preferably 0.1-1.0 parts by weight, based on 1 part by weight of the crude pigment, of at least one halide, preferably a chloride of a metal from the group IIa of the periodic table grinds.

Inventors

  • 👤 William Eugene Bachmann
  • 👤 Francis Santimauro

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 18:01
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0022; C09B67/0002

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