Produits pigmentaires modifies, leurs dispersions et compositions les comprenant

Modified pigment products, dispersions thereof, and compositions comprising the same

Abstract

The present invention relates to modified pigments products comprising a pigment having attached at least one organic group represented by the formula X-Sp-Alk, wherein X, which is directly attached to the pigment, represents an arylene, heteroarylene, or alkylene group, Sp represents a spacer group, and Alk represents an alkenyl or alkyl group containing 50-200 carbon atoms. The use of these modified pigment products in non-aqueous dispersion compositions and in several applications, including printing plates, electrophoretic displays, liquid crystal displays, and ink, coating, toner, and polymer compositions is also disclosed.
L'invention porte sur des produits pigmentaires modifiés, comprenant un pigment fixé au moins à un groupe organique de formule X-Sp-Alk, dans laquelle: X, qui est directement fixé au pigment, représente: un groupe arylène, hetéroarylène, ou alkylène, Sp représente un groupe espaceur, et Alk représente un groupe alcényle ou alkyle à 50-200 atomes de carbone. L'invention porte également sur l'utilisation desdits produits pigmentaires dans des compositions de dispersions non aqueuses et dans différentes applications dont des clichés, des visualiseur d'électrophorèse, des afficheurs à cristaux liquides, et des encres, des toners et des compositions de polymères.

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    EP-2728407-A1May 07, 2014Cabot CorporationHigh resistivity compositions
    US-9238736-B2January 19, 2016Cabot CorporationSurface modified organic black pigments, surface modified carbon blacks, pigment mixtures using them, and low dielectric black dispersions, coatings, films, black matrices, and devices containing same
    US-9346963-B2May 24, 2016Basf SeSurface-modified pigment preparations
    WO-03057784-A2July 17, 2003Cabot CorporationProduits a base de pigments modifies et matrices de noirs comprenant ces produits
    WO-03057784-A3October 16, 2003Cabot CorpModified pigment products and black matrixes comprising same
    WO-2012089516-A1July 05, 2012Basf SePréparations pigmentaires modifiées en surface