摘要:
A compound of formula [1]: wherein A to D are the same or different and each is a substituted or unsubstituted alkyl group, a substituted or unsubstituted monocyclic group or a substituted or unsubstituted fused polycyclic group, or A and B and/or C and D, together with the nitrogen atom to which they are attached, form a substituted or unsubstituted heterocyclic ring, or a compound of formula [2] wherein R 1 to R 20 are organic residues, is useful as a light-emitting material for an organo-electroluminescence device.
摘要:
A compound of formula [1]: wherein A to D are the same or different and each is a substituted or unsubstituted alkyl group, a substituted or unsubstituted monocyclic group or a substituted or unsubstituted fused polycyclic group, or A and B and/or C and D, together with the nitrogen atom to which they are attached, form a substituted or unsubstituted heterocyclic ring, or a compound of formula [2] wherein R 1 to R 20 are organic residues, is useful as a light-emitting material for an organo-electroluminescence device.
摘要:
A hole-transporting material having excellent hole transportation capability and sufficient durability, used in an organic EL device and an electrophotographic photoreceptor, the hole-transporting material having the following general formula: wherein R 1 to R 6 and Ar 1 to Ar 3 are as defined herein.
摘要:
An industrially advantageous process for the production of a granular aqueous pigment having a water content of 30 to 50% by weight, which process comprises dehydrating an organic pigment wet cake at 20 to 80°C while pulverizing and stirring the cake.
摘要:
The present invention provide an aqueous type pigment dispersing agent having one portion which has a high affinity with a pigment and which has at least one type of selected from the group consisting of an organic dye, anthraquinone and acridone and only at a terminal end or at both terminal ends of at least one aqueous polymer selected from an aqueous linear urethanic polymer and an aqueous linear acrylic polymer, a pigment composition using the same and a pigment dispersion. The portion having a high affinity with the pigment can be adsorbed efficiently on the surface of a pigment. At the same time, for example, a pigment, used for ink or paint can be dispersed stably due to the affinity between the polymer portion and a disperse medium to improve the adaptability in use and the quality of coating articles.
摘要:
The present invention provide a non-aqueous type pigment dispersing agent having at least one portion which has a high affinity with a pigment and which has at least one type selected from the group consisting of an organic dye, anthraquinone and acridone only at a terminal end or at both terminal ends of at least one polymer selected from a linear urethanic polymer and a linear acrylic polymer, a pigment composition using the same and a pigment dispersion. The portion having a high affinity with the pigment can be adsorbed efficiently on the surface of a pigment. At the same time pigment, for example, used for ink or paint can be dispersed stably due to the affinity between the polymer portion and a disperse medium to improve the adaptability in use and the quality of coated products.
摘要:
A process for the production of a phthalocyanine pigment, which process comprises:
(a) reacting phthalic anhydride or a derivative thereof with urea or a derivative thereof in an organic solvent in the presence of a catalyst to produce a phthalocyanine crude; (b) wet-milling a slurry of the phthalocyanine crude in the presence of a milling medium without removing the organic solvent, and (c) removing the organic solvent, purifying and drying the milled product.
摘要:
An image transfer apparatus includes an impression cylinder (8) having an image forming material attached thereto and a transfer cylinder (1) having an image substrate attached thereto, for transferring an image formed on a photosensitive layer of the image forming material to the image substrate by introducing a nip between the impression cylinder and the transfer cylinder. In this apparatus, a device for attaching the image substrate to the transfer cylinder comprises pawls (3, 5) and pawl seats (4, 6) for holding the upper and lower sides of the image substrate to the surface of the transfer cylinder throughout the full width, and a device for holding the upper side of the image substrate comprises a pawl (3) and a pawl seat (4), disposed in a notch (2) formed at a part of the surface of the transfer cylinder in the axial direction of the transfer cylinder. The pawl and the pawl seat comprise at least two pawls and two pawl seats divided in the axial direction, respectively, and a gap exists between the pawl seats in the axial direction.
摘要:
A star-like or comb-like branched aliphatic polyamino compound useful for example in a curable resin composition is obtainable by a process comprising
(a) forming an adduct of ammonia or an aliphatic amino compound having an amino group (compound A) with acrylate, (b) adding an alkylenediamine having 2 to 12 carbon atoms to be adduct to carry out an ester-amide exchange reaction, thereby obtaining a polyamino compound (B) having a total of 2 to 100 aliphatic primary amino and secondary amino groups per molecule and having a number average molecular weight of 170 to 10,000, and (c) forming an adduct of the polyamino compound (B) with an acrylic acid ester (C) of the formula (I),
CH 2 =CHCOO-R 1 (I)
wherein R 1 is an alkyl group having from 4 to 50 carbon atoms or a group (C n H 2n 0) m R 2 in which R 2 is an alkyl group having from 1 to 5 carbon atoms, n is 1, 2 or 3 and m is from 1 to 25.
摘要:
Electrophotographic toners comprising a resin, a colorant, a charge controlling agent and an offset preventing agent. The resin comprises a copolymer containing at least one of phenyl isopropenyl ketone and its derivatives as a constituting monomer. The copolymer is photodegradable and thus the toners can be are used for recycling paper.