Production of azomethine pigment

Details Production of azomethine pigment Production of azomethine pigment

C - Chemistry, Metallurgy

09

B

260/429.7

C09B 55/00 (2006.01)

Patent

CA 1080731

Abstract of the Disclosure Process for the production of a compound of formula Image in pigmentary form having a mean particle size not exceeding 2.0 microns, comprising a) first reacting together 2-hydroxy-1-napthaldehyde and 2-aminophenol under aqueous alkaline non-oxidising conditions, and either neutralising the reaction product or isolating the reaction product and re-dispersing it in aqueous medium and adding to the neutralized or re- dispersed reaction production whilst applying mechanical stirring to the mixture, an aqueous solution of a coppering agent, b) separating the solid product, washing it free from inor- ganic salts and optionally drying it, and c) subjecting the dried pigmentary product to a kneading, salt-milling or aqueous milling procedure. The pigment produced is suitable for use in the pigmentation of higher molecular weight hydrophobic organic or other organic materials.

244211

Affiliated with

Also associated with

Rating

Production of azomethine pigment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of azomethine pigment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of azomethine pigment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-274400