Abstract:
An alkali-resistant pigment composition is provided comprising (a) a C.I. Pigment Yellow 139 and (b)an adduct containing a compound of formula (II) or a tautomeric form thereof, wherein X is O,S or NR 1 ; Y is O, S or NR 1 ; the group -A-B- is selected from the group consisting of -CR 2 =CR 3- , -CR 4 R 5 -CR 6 R 7- , -CY-CR 8 R 9- , -CX-NR 10- , -CR 11 =N-, -CR 12 R 13- NR 14- and R 1 is hydrogen, C 1 -C 8 alkyl, C 3 -C 7 cycloalkyl, C 6 -C 10 aryl or C 7 -C 10 aralkyl; R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 and R 14 are independently of each other hydrogen, halogen, C 1 -C 8 alkyl, C 2 -C 8 alkenyl, or C 6 -C 10 aryl, or R 2 and R 3 form a benzoannellated ring; and/or a melamine- or pyrimidine-based compound, which is optionally substituted. The pigment composition may be used as colorant in various applications, especially in coloring high molecular weight organic material, for example, coating compositions, paints, printing inks, liquid inks, plastics, films or fibers.
Abstract:
A method for coating pigment particles is provided, the method comprising heating a polymer resin in a carrier fluid to dissolve the polymer resin; suspending in the carrier fluid white pigment particles to be coated; and cooling the carrier fluid at a rate of 2 °C/hr or less to effect precipitation of the polymer resin from the carrier fluid such that a coating of the resin is formed on the pigment particles, thereby producing the white liquid electrophotographic ink composition.
Abstract:
The present disclosure relates to a benzoyl substituted carbazole-dioxazine pigment and its preparation. The process involves benzoylation of 3-nitro-N-ethylcarbazole in monochlorobenzene using benzoylchloride and ferric chloride to yield 3-nitro-6-benzoyl-N-ethyl carbazole, which on catalytic hydrogenation and subsequent condensation with chloranil and cyclisation yields benzoyl substituted carbazole-dioxazine pigment.
Abstract:
The present disclosure is directed to an aqueous pigment dispersion comprising low molecular weight polytrimethylene ether glycol. This disclosure is further directed to an antimicrobial aqueous pigment dispersion comprising the low molecular weight polytrimethylene ether glycol. The pigment dispersion can be used in coating compositions as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The disclosure is particularly directed to an aqueous pigment dispersion comprising components derived from renewable resources.
Abstract:
The present disclosure is directed to an aqueous pigment dispersion comprising low molecular weight polytrimethylene ether glycol. This disclosure is further directed to an antimicrobial aqueous pigment dispersion comprising the low molecular weight polytrimethylene ether glycol. The pigment dispersion can be used in coating compositions as interior and exterior top coats, basecoats, primers, primer surfacers and primer fillers. The disclosure is particularly directed to an aqueous pigment dispersion comprising components derived from renewable resources.
Abstract:
A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.
Abstract:
The invention relates to a method for making organic pigment in such manner that the organic pigment is formed from a starting material of plant origin. According to the invention, the starting material is pulverized to a suitable particle size by mechanical grinding in at least two grinding steps to form the organic pigment.
Abstract:
Herstellung von Farbmitteln der allgemeinen Formel (Ia), (Ib) oder (Ic) oder deren Gemischen, wobei (a) Tetracarbonsäuren oder deren funktionellen Derivate, mit (b) mindestens einer Verbindung gewählt aus i. aliphatischen Aminen, ii. aromatischen Aminen, iii. aliphatischen Diaminen, iv. aromatischen Diaminen, umgesetzt werden, (c) optional in Gegenwart weiterer Additive, (d) optional in Gegenwart von Benetzungsmitteln und wobei die Umsetzung in einer Mischapparatur erfolgt. Verwendung dieser Farbmitteln zur Einfärbung von hochmolekularen organischen und anorganischen Materialien natürlicher und synthetischer Herkunft.
Abstract:
A monoazo pigment is represented by the general formula (1), a tautomer of the monoazopigment, and a salt or a hydrate thereof: wherein R 1 , P 1 , and Q 1 each independently represents a hydrogen or a substituent, G represents the non-metallic atoms necessary to complete a 5- to 6-membered heterocyclic group, W represents a substituent capable of binding to the heterocyclic group constituted by G, t represents an integer of from 0 to 5, Het-1 represents a group selected from the aromatic heterocyclic groups represented by the general formula (2): wherein X, Y, Z, W 0 , W 1 , W 2 , W 3 , and W 4 each independently represents a hydrogen or a substituent, and * shows the point of attachment to the azo linkage in the general formula (1).