Quinacridone pigment of low amine content and method for producing same
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United States of America Patent
Stats
-
Feb 27, 2018
Issued Date -
N/A
app pub date -
Oct 23, 2014
filing date -
Dec 19, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided are a quinacridone pigment having a low content of a primary aromatic amine, a method for producing the same, and also a gravure and flexo ink, a colorant for plastic, a paint, a lithographic ink, a toner, or an ink-jet ink using the pigment. The quinacridone pigment having a low primary aromatic amine content is provided by washing a quinacridone pigment with at least one solvent selected from water and an organic solvent, or by adding an oxidizing agent to a pigment slurry including a quinacridone pigment and at least one solvent selected from water and an organic solvent to oxidatively decompose the aromatic amine.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- C07D Class
- 5203 Applications Filed
- 4627 Patents Issued To-Date
- 88.93 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C07D Class
- 0 % this patent is cited more than
- 7 Age
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