摘要:
A phthalocyanine near infrared absorber having a broad absorption range in the near infrared region and represented by the following formula (1):
wherein R¹ and R² each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; Ys each independently represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; m stands for an integer of 0 to 4; Pc represents a phthalocyanine nucleus; Z represents an -SH group or an -NHR³ group in which R³ represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; Xs each independently represents a halogen atom, a hydroxy group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted alkylthio group, a substituted or unsubstituted arylthio group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted arylamino group and a substituted or unsubstituted alkylarylamino group; the adjacent pairs of Xs may form a 5- or 6-membered ring via two hetero atoms; M represents a divalent metal atom, a substituted trivalent or tetravalent metal or an oxymetal atom; p stands for an integer of 1 to 16; q stands for an integer of 0 to 8; r stands for an integer of 0 to 8; and p + 2q + r is not greater than 16 .
摘要:
As a plasma display filter for efficiently cutting off near infrared rays radiated from a plasma display so that malfunction of electronic equipment located around the display making use of near infrared light can be avoided, a filter containing in a base material at least one near infrared ray absorbing compound having a maximum absorption wavelength at 800 to 1,200 nm is provided.
摘要:
The present invention is directed to an optical recording medium having at least a recording layer and a reflective layer on a substrate, said recording layer containing a dipyromethene metal chelate compound obtained from a dipyromethene compound represented by the general formula (1) and a metal ion: wherein R 1 to R 7 are defined in the specification.
摘要:
A phthalocyanine near infrared absorber having a broad absorption range in the near infrared region and represented by the following formula (1):
wherein R¹ and R² each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; Ys each independently represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; m stands for an integer of 0 to 4; Pc represents a phthalocyanine nucleus; Z represents an -SH group or an -NHR³ group in which R³ represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; Xs each independently represents a halogen atom, a hydroxy group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted alkylthio group, a substituted or unsubstituted arylthio group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted arylamino group and a substituted or unsubstituted alkylarylamino group; the adjacent pairs of Xs may form a 5- or 6-membered ring via two hetero atoms; M represents a divalent metal atom, a substituted trivalent or tetravalent metal or an oxymetal atom; p stands for an integer of 1 to 16; q stands for an integer of 0 to 8; r stands for an integer of 0 to 8; and p + 2q + r is not greater than 16 .
摘要:
A near infrared ray absorbing compound having an improved solubility and light resistance can be obtained by amidating and/or imidating the amino groups on substituents of a phthalocyanine. According to its preparation process, the desired near infrared ray absorbing compound can be easily prepared by reacting the phthalocyanine having an elimination group such as a halogen atom with a 2-amino-thiophenol derivative, and then amidating and/or imidating a part or all of the remaining primary or secondary amino groups. Moreover, substituents on the benzene rings of the phthalocyanine can be coordinated with metals, whereby an absorption wavelength can be broadened and the near infrared rays in a long wave range can be absorbed. The near infrared ray absorbing compound of the present invention is useful as a heat ray absorbing material.
摘要:
Provided is an optical recording medium comprising at least a dye layer, a reflective layer and a protective layer provided on a substrate, wherein an azo compound or a metal complex thereof having an absorption maximum at a wavelength falling in a range of 450 to 630 nm and a phthalocyanine compound having an absorption maximum at a wavelength falling in a range of 680 to 900 nm are contained in the above dye layer. This optical recording medium is an interchangeable optical recording medium having good recording characteristics, which can be recorded and/or reproduced based on the CD standards with light having a wavelength selected from a range of 770 to 830 nm and recorded and/or reproduced as well with light having a wavelength selected from a range of 620 to 690 nm.
摘要:
The invention is a dyeing method of an aliphatic polyester filament comprising dyeing the aliphatic polyester filament with a disperse dye by selecting a dyeing temperature, dyeing pH, and dyeing time in such a way that the weight average molecular weight of the aliphatic polyester filament has a lowering ratio of 20% or less. The invention is a method for dyeing the aliphatic polyester filament with good reproducibility and level dyeing property while substantially maintaining the molecular weight and the essentially excellent properties of the aliphatic polyester filament, and can provide dyed articles which have high strength, are excellent in level dyeing property and color fastness to light, and have various hues.
摘要:
Provided is an optical recording medium comprising at least a dye layer, a reflective layer and a protective layer provided on a substrate, wherein an azo compound or a metal complex thereof having an absorption maximum at a wavelength falling in a range of 450 to 630 nm and a phthalocyanine compound having an absorption maximum at a wavelength falling in a range of 680 to 900 nm are contained in the above dye layer. This optical recording medium is an interchangeable optical recording medium having good recording characteristics, which can be recorded and/or reproduced based on the CD standards with light having a wavelength selected from a range of 770 to 830 nm and recorded and/or reproduced as well with light having a wavelength selected from a range of 620 to 690 nm.
摘要:
There is provided a low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient; wherein ring A represents a monocyclic or polycyclic organic group, wherein two ring As are mutually bound each other via a spiro bond to form a spiro ring which has a molecular asymmetric structure; n is an integer of 0 to 10; X 1 and Y 1 are binding groups; Z 1 is a polymerization-active group. The component has excellent transparency, mechanical strength and heat resistance, as well as a low birefringence.
摘要:
There is provided a low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient; wherein ring A represents a monocyclic or polycyclic organic group, wherein two ring As are mutually bound each other via a spiro bond to form a spiro ring which has a molecular asymmetric structure; n is an integer of 0 to 10; X 1 and Y 1 are binding groups; Z 1 is a polymerization-active group. The component has excellent transparency, mechanical strength and heat resistance, as well as a low birefringence.