C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 3/00 (2006.01) C09B 67/20 (2006.01) C09B 67/46 (2006.01) C09D 7/00 (2006.01) C09D 11/00 (2006.01) C09D 17/00 (2006.01)
Patent
CA 2438287
An improved process for making pigment dispersions containing a single pigment that match the tinting strength of a standard dispersion. The process employs a faster and more accurate wet measurement technique for analyzing and matching the dispersions to a standard that utilizes the spectral transmittance of the wet dispersions over the visible spectrum.
L'invention concerne un procédé amélioré de production de dispersions pigmentaires contenant un seul pigment qui concorde avec la force colorante d'une dispersion classique. Le procédé met en oeuvre une technique de mesure de l'humidité plus rapide et plus précise pour analyser et comparer les dispersions de l'invention par rapport à une norme utilisant la transmittance spectrale des dispersions humides dans le spectre visible.
Martino Anthony Joseph
Rodrigues Allan Blase Joseph
Schermacher Ken Stephen
Spahr Douglas E.
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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