Back to results
US 5,236,498 AGranted
Quinacridone solid solutions having unique styling applications
AssigneeMiles Inc.
InventorsCharles G. Zaloum, Michael J. Greene
Life of this patent
Estimating the term…
Abstract
This invention relates to quinacridone solid solutions containing (a) 95% to 5% by weight of 2,9-dimethoxyquinacridone, and (b) 5% to 95% by weight of 2,9-dichloroquinacridone, characterized by X-ray diffraction patterns that are different from the sum of the X-ray diffraction patterns of the individual quinacridone components. The invention further relates to the use of such solid solutions for pigmentation of fibers, plastics, coatings, printing inks, and the like.
Claims7
A violet quinacridone pigment composition consisting essentially of a solid solution of
- (a) 95% to 5% by weight of 2,9-dimethoxyquinacridone, and (b) 5% to 95% by weight of 2,9dichloroquinacridone, wherein said pigment composition is characterized by an X-ray diffraction pattern that is different from the sum of the X-ray diffraction patterns of the individual quinacridone components.
Dependencies are inferred from the claim text.