摘要:
Compounds of formula I: ##STR1## wherein R is a radical of the formula --OR.sub.3 or --NHR.sub.3, A is a radical of formula II or III: ##STR2## B is a radical of the formula ##STR3## n is the number 1 or 2, R.sub.1 is --H or --Cl, R.sub.2 is --H, halogen, --NO.sub.2, --CN, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --CF.sub.3, C.sub.2 -C.sub.5 alkoxycarbonyl or --CONH-phenyl, --NHCO-phenyl or phenoxy which is unsubstituted or substituted on the phenyl ring by one or two chlorine atoms or one or two methyl, methoxy or ethoxy groups, R.sub.3 is alkyl containing at least 10 C atoms, R.sub.4 and R.sub.5 are each independently of the other --H, halogen, --NO.sub.2, --CN, --CF.sub.3, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.6 is --H, --Cl, --Br, --CH.sub.3 or --OCH.sub.3 and X is --H, --Br, --OCH.sub.3, --CN or --NO.sub.2, are suitable as pigments, especially for coloring polyolefins, as well as novel intermediates of the formula ##STR4## wherein n is the number 1 or 2, R is a radical of the formula --OR.sub.3 or --NHR.sub.3, R.sub.1 is --H or --Cl, R.sub.2 is --H, halogen, --NO.sub.2, --CN, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --CF.sub.3, C.sub.2 -C.sub.5 alkoxycarbonyl or --CONH-phenyl, --NHCO-phenyl or phenoxy which is unsubstituted or substituted on the phenyl ring by one or two chlorine atoms or one or two methyl, methoxy or ethoxy groups, R.sub.3 is alkyl containing at least 10 C atoms, X is --H, --Br, --OCH.sub.3, --CN or --NO.sub.2 and Q is --OH or halogen.
摘要:
The present invention relates to IR reflective black pigment compositions comprising a halogenated copper phthalocyanine such as C.I. Pigment Green 7 and a perylenetetracarboxylic acid diimide such as C.I. Pigment Violet 29. The compositions are characterized by an IR reflection spectrum with a positive slope in the wavelength range between 800 and 900 nm when incorporated as coloring agents in coatings or plastics. The inventive IR reflective black pigment compositions are useful for coloring high molecular weight materials like coatings, inks and plastics.
摘要:
A new beta quinacridone pigment characterized by masstone and tint reflection spectra, and a process for its preparation is disclosed. The new beta quinacridone pigment is especially useful for coloring coating compositions, such as automotive paints, and plastics. Also disclosed is a new pigment composition consisting of the inventive beta quinacridone pigment and a carbazole dioxazine pigment.
摘要:
The present invention relates to a process for preparing a pigment composition whereby a mixture of an organic pigment and an inorganic filler is subjected to an air jet milling step. The inventive process is an environmentally friendly process which yields pigments having outstanding dispersibility and wetting characteristics when incorporated in plastics, aqueous or solvent based coatings and inks.
摘要:
The present invention relates to a process of preparing quinacridone by oxidizing a 6,13-dihydroquinacridone salt corresponding to the quinacridone pigment with hydrogen peroxide as the oxidizing agent. The inventive process is economical and environmentally friendly and yields high performance quinacridone pigments in a high yield.
摘要:
The present invention relates to a heat stable red pigment composition comprising a 2,9-dichloroquinacridone and a bis-(4, 5,6,7-tetrachloroisoindolin-1-on-3-ylidene)-phenylene-1,4-diamine pigment and a process for its preparation. The red pigment compositions are particularly useful for pigmenting engineering plastics.
摘要:
A process for converting crude pigments into pigmentary form wherein the crude pigment is premilled, then contacted with a polar solvent at temperatures below 50.degree. C., with or without the presence of particle growth inhibitors, and finally isolated.
摘要:
A process for conditioning organic pigments by milling or kneading said pigments in the presence of 0.05 to 25% by weight, based on the pigment to be milled, of at least one micronized wax.The process, in which the use of organic solvents may be dispensed with, yields in a single milling operation, pigments which are distinguished by excellent dispersibility and outstanding fastness properties.
摘要:
The invention relates to a mixture of at least two different pigments of the formula ##STR1## with the difference lying in the meanings of the radicals A and B, in which the formula (I) A and B are the same or different alkyl, aralkyl, cycloalkyl, carbocyclic or heterocyclic aromatic radicals, which mixture of pigments is obtainable by(a) reacting 1 mole of a disuccinate with 1.75 to 1.998 moles of a nitrile of the formula ACN and 0.002 to 0.25 mole of a nitrile of the formula BCN or of a mixture of several nitriles of the formula BCN, the radicals B of which are different from A, or(b) reacting 1 mole of a lactam of formula (II) or of an enamine of formula (III) ##STR2## in which formula each of R and R' independently of the other is alkyl or aryl, with 0.75 to 0.998 mole of a nitrile of the formula ACN and 0.25 to 0.002 mole of a nitrile of the formula BCN or of a mixture of several nitriles of the formula BCN, the radicals B of which are different from A, in an organic solvent, in the presence of a strong base and at elevated temperature, and subsequently hydrolyzing the resultant reaction product.The mixture of pigments is suitable for coloring material of high molecular weight, in particular plastics and lacquers, in red shades of excellent fastness properties.
摘要:
Stoving lacquer coatings containing 0.001 to 30% by weight of one or more organic pigments or polymer-soluble dyes, and 0.001 to 30% by weight, relative to the dry lacquer coating, are suitable for obtaining metallic effects of high purity.