Ferro Corporation
Method for manufacturing bismuth based pigment having an improved alkaline resistance by encapsulating said pigment with a chelating agent

Last updated:

Abstract:

The present invention is directed to a method for manufacturing a bismuth based pigment having an improved alkaline resistance, the method comprising: i) obtaining a dried bismuth based pigment; ii) encapsulation of the bismuth based pigment using a chelating agent; iii) final processing of the encapsulated pigment; and v) drying of the pigment. In addition, the present invention is directed to a bismuth based pigment encapsulated by a layer of chelating agent.

Status:
Grant
Type:

Utility

Filling date:

22 Sep 2017

Issue date:

24 Aug 2021