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EP0440958A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for preparing black manganese-iron pigment

Assignee: Bayer AG
•
Filing: 1990-12-20
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Granted: —
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Expires: 2010-12-20
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Abstract

Abstract The invention relates to a black pigment consisting essentially of spinel mixed crystals of the mixing series mangetite/manganese ferrite, to processes for the preparation of this pigment and to its use.

Inventors

  • 👤 Peter Dr. Kuske
  • 👤 Gunter Dr. Buxbaum

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 15:44
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/22; C01; C01G; C01G49/00; C04; C04B; C04B14/00; C04B14/02; C04B14/30; C01P; C01P2002/00; C01P2002/30; C01P2002/32; C04B2103/00; C04B2103/54

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE2159364A1 Cited
GB2151500A Cited
EP0176919A2 Cited
EP0372335A2 Cited

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