摘要:
The invention relates to a color-pigmented high molecular weight organic material structured from a radiation-sensitive precursor by irradiation, the pigmentation of which material consists of extremely fine particles, at least 80 mol % of the pigmentation consisting of a pigment of the class diketopyrrolopyrrole, dioxazine, isoindoline, isoindolinone, disazo condensation yellow or benzimidazolonazo, each containing at least one --NHCO-- group, and, where appropriate, a second pigment of the class diketopyrrolopyrrole, dioxazine, isoindoline, isoindolinone, benzimidazolonazo, disazo or phthalocyanine, and, when the structure of the main pigment is point-symmetrical, the two pigments being present in a balanced molar ratio of from 1:1 to 7:3. Those materials are used preferably in the form of thin layers which are built up in patterns in one or more layers on a transparent substrate and can be used, for example, as optical color filters.
摘要:
Preparation of pigment dispersions bya1) subjecting a mixture A comprising a latent pigment and a polymer to thermal, chemical or photolytic treatment andb) then adding a solvent, ora2) subjecting a mixture B comprising a latent pigment, a polymer and a solvent to thermal, chemical or photolytic treatment,new pigment dispersions and new latent pigments, their use in the process according to the invention for preparing the fine pigment dispersions and the use of the dispersions according to the invention for pigmenting high molecular mass material, including color filters.
摘要:
Pigment dispersions comprisinga polymer,a compound of the formula (I) ##STR1## and a water-free solvent ora water-containing solvent,process for their preparation and also the use of (I) and the pigment dispersions of the invention.
摘要:
When diazotizing a p-amino-benzoic acid anilide, the anilide nucleus of which is substituted in its paraposition by carbamoyl, acetamino or chloro and coupling it onto 5-acetoacetylamino-benzimidazolone-(2) monoazo pigments are obtained having a high fastness to light, solvents, overlacquering and bleeding and a very high heat resistance.
摘要:
When diazotizing a benzanilide of the formula ##STR1## wherein R is methoxy and X is carbamoyl or acetamino and coupling it onto 5-acetoacetylaminobenzimidazolone-(2), a monoazo pigment is obtained having the formula ##STR2## wherein R is methoxy and X is carbamoyl or acetamino. The monoazo pigments are effective for coloring plastics and lacquers and exhibit a very good fastness to light, solvents, over-lacquering, bleeding and have a high heat resistance.
摘要:
When diazotizing a p-amino-benzoic acid anilide, the anilide nucleus of which is substituted in its para-position by carbamoyl, acetamino or chloro and coupling it onto 5-acetoacetylamino-benzimidazolone-(2) monoazo pigments are obtained having a high fastness to light, solvents, overlacquering and bleeding and a very high heat resistance.
摘要:
A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
摘要:
A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated-benzimidazolone compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
摘要:
Nanoscale particles of benzimidazolone pigments are made by providing one or more organic pigment precursor(s) to a benzimidazolone pigment, providing a solution or suspension of a sterically bulky stabilizer compound that associates non-covalently with a benzimidazolone moiety on one of the pigment precursors, wherein the sterically bulky stabilizer compound is selected from the group consisting of substituted pyridine derivatives, alkylated benzimidazolone compounds, alkylated derivatives of aromatic acids, and mixtures thereof, and carrying out a coupling reaction to form a benzimidazolone pigment composition, whereby one or more functional moieties on the benzimidazolone pigment is non-covalently associated with the sterically bulky stabilizer, so as to limit an extent of particle growth and aggregation and results in nanoscale pigment particles.