摘要:
Disclosed is a monoazo metal complex represented by the formula (1) wherein R1 represents a hydrogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a chlorine atom, a bromine atom or a nitro group; M represents a hydrogen atom, a sodium, a potassium, a magnesium, a calcium, a barium or an aluminum; Mn+ represents a n-valent cation; Metal represents Ni, Fe, Cu, Co or Al; m represents an integer of 1 or 2; and n represents an integer of 1, 2 or 3.
摘要:
[Problems] To microparticulate a yellow pigment having a structure derived from barbituric acid (e.g., C. I. Pigment Yellow 150) and increase the concentration of the pigment in a pigment composition comprising the pigment without increasing the viscosity of the composition after dispersion of the pigment, flocculation or precipitation in the composition, or increasing the viscosity of the composition over time; and to provide a stable pigment composition which can be used as a coloring agent for a color filter resist or a ink-jet ink. [Means for Solving Problems] Disclosed is a monoazo metal complex represented by the formula (1) wherein R1 represents a hydrogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a chlorine atom, a bromine atom or a nitro group; M represents a hydrogen atom, a sodium, a potassium, a magnesium, a calcium, a barium or an aluminum; Mn+ represents a n-valent cation; Metal represents Ni, Fe, Cu, Co or Al; m represents an integer of 1 or 2; and n represents an integer of 1, 2 or 3.
摘要:
A composition for a skin patch including a synthetic polymer gel prepared by reacting a water-soluble polymer of an aliphatic carboxylic acid or a salt thereof with a sparingly soluble aluminum compound, an organic acid containing a hydroxyl group in its molecule as a reaction accelerator, and an ethylenediamine compound as a reaction inhibitor in the presence of water at a pH of 4.0 to 6.1. The composition can homogeneously gel at any crosslinking rate and does not cause any change in quality with the lapse of time.
摘要:
An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center. An optical telephone uses an optical modulator including an optical fiber having a U-shaped bending region and a transducer for vibrating one straight portion of the optical fiber.
摘要:
An ink set for inkjet recording, which has excellent water resistance and light resistance in the hue range of yellow-orange-magenta. The ink set includes two-color ink compositions, i.e., a) a magenta ink composition and b) an yellow ink composition, each of which includes a dye, water and a water-soluble organic solvent, wherein the magenta ink composition a) contains a compound produced by sulfonating a compound represented by the formula (1), a salt of the compound, or a mixture thereof as a coloring agent.
摘要:
An optical modulation method operable in an optical transmission path using an optical fiber, wherein an optical fiber bending region is formed by bending a portion of the optical fiber into a U shape having a predetermined bending width. A bending width set point is set in correspondence with a predetermined inclined portion of a characteristic curve representing a dependency ratio of insertion loss of light propagating in said optical fiber bending region relative to the bending width thereof, said predetermined inclined portion of said characteristic curve being located between a predetermined maximum and minimum portion thereof. Intensity modulation of light propagating in the optical fiber is performed using a signal to be transmitted by adjusting the bending width of the optical fiber bending region in correspondence with the signal to be transmitted with reference to the bending width set point as a center.