Abstract:
The present invention relates to a device for monitoring integral value of time, temperature comprising at least one layer of polymer comprising a latent pigment capable of undergoing at least one colour change, and an organic acid; or comprising one layer of polymer comprising a latent pigment capable of undergoing at least one colour change, and one layer of polymer comprising an organic acid, wherein said latent pigment is converted to its pigmentary form which causes said colour change. The device can be used for monitoring sterilization of medical and kitchen supplies, canned foods and doneness of microwave foods.
Abstract:
A method for producing infra-red inert substrates, including moulded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a dispersed bis-oxodihydroindolylen-benzodifuranone colourant. The thus obtained, also claimed substrates so produced are reflective and transparent to much of the near infra red radiation not reflected. There are multiple applications for cases of devices comprising electronic components, outdoor construction elements, outdoor furniture, automotive, marine or aerospace parts, laminates, artificial leather or textile materials, as well as in polychrome printing processes and optical fibers. The thus obtained substrates can also be subjected to laser welding. New bis-oxo- dihydroindolylen-benzodifuranone compounds are also claimed.
Abstract:
The present invention is in the field of security documents, more particularly in the field of security elements aimed to protect security documents against copying (illegal reproduction) and counterfeiting. It discloses a security element having a coating layer(s) which changes its visual appearance after irradiation with light, especially with UV light and reverts back to the original state within a few seconds. Security documents comprising said security element, as well as a method for producing said security element, are also disclosed.
Abstract:
Un procedimiento para preparar un sustrato inerte a la radiación del infrarrojo cercano, procedimiento quecomprende la incorporación a un sustrato orgánico de una composición que contiene un colorante de bisoxodihidroindolilen-benzodifuranona de fórmula: o o un isómero o tautómero del mismo, preferentemente un pigmento de fórmulas (Ia) o (Ib), o un isómero otautómero del mismo; o procedimiento que comprende la aplicación sobre la superficie de un sustrato orgánico oinorgánico de una composición que contiene un aglutinante polimérico y un colorante de bis-oxodihidroindolilenbenzodifuranonade fórmula (Ia) o (Ib), o un isómero o tautómero del mismo, preferentemente, un pigmento de fórmulas (Ia) o (Ib), o un isómero o tautómero del mismo, en el que el colorante de bis-oxodihidroindolilenbenzodifuranonade fórmula (Ia) o (Ib), o el isómero o tautómero del mismo, está en forma de partículas de tamaño medio de 0,5 μm y espesor >= 0,4 μm que están bien dispersadas enla composición, en una cantidad eficaz para conferir a un sustrato orgánico o inorgánico reflectante unareflectancia en el infrarrojo de >= 20 %, a un sustrato orgánico o inorgánico transparente, una transmitancia en elinfrarrojo de >= 30 %, o a un sustrato orgánico o inorgánico semitransparente, una reflectancia y una transmitanciacombinadas en el infrarrojo de >= 25 %, cada una a longitudes de onda de 850 a 1.600 nm, en cuyas fórmulas (Ia)y (Ib): R1 y R6 son cada uno, independientemente entre sí, H, CH3, CF3, F o Cl, preferentemente H o F, lo máspreferentemente H; R2, R3, R4, R5, R7, R8, R9 y R10 son cada uno, independientemente entre sí, H, halógeno, R11, COOH, COOR11,COO-, CONH2, CONHR11, CONR11R12, CN, OH, OR11, OOCR11, OOCNH2, OOCNHR11, OOCNR11R12, NO2, NH2,NHR11, NR11R12, NHCOR12, NR11COR12, N>=CH2, N>=CHR11, N>=CR11R12, SH, SR11, SOR11, SO2R11, SO3R11,SO3H, SO3 -, SO2NH2, SO2NHR11 o SO2NR11R12; por medio de lo cual R2 y R3, R3 y R4, R4 y R5, R7 y R8, R8 y R9,y/o R9 y R10 pueden estar opcionalmente ligados entre sí por un enlace directo o un puente de O, S, NH o NR11;R11 y R12 son cada uno, independientemente entre sí, alquilo C1-C12, cicloalquilo C1-C12, alquenilo C1-C12,cicloalquenilo C1-C12 o alquinilo C1-C12, cada uno de los cuales no está interrumpido o está interrumpido por O,NH, NR13 y/o S en dos o más fragmentos, comprendiendo cada uno al menos 2 átomos de C, y también estandocada uno de los cuales no sustituido o sustituido una o más veces con COOH, COOR13, COO-, CONH2,CONHR13, CONR13R14, CN, O, OH, OR13, OOCR13, OOCNH2, OOCNHR13, OOCNR13R14, NR13, NH2, NHR13,NR13R14, NHCOR14, NR13COR14, N>=CH2, N>=CHR13, N>=CR13R14, SH, SR13, SOR13, SO2R13, SO3R13, SO3H, SO3-, SO2NH2, SO2NHR13, SO2NR13R14 o halógeno; o aralquilo C7-C12, heteroarilo C1-C11 o arilo C6-C12, cada uno de los cuales no está sustituido o está sustituido35 una o más veces con COOH, COOR13, COO-, CONH2, CONHR13, CONR13R14, CN, OH, OR13, OOCR13,OOCNH2, OOCNHR13, OOCNR13R14, NO2, NH2, NHR13, NR13R14, NHCOR14, NR13COR14, N>=CH2, N>=CHR13,N>=CR13R14, SH, SR13, SOR13, O2R13, SO3R13, SO3H, SO3 -, SO2NH2, SO2NHR13, SO2NR13R14 o halógeno.
Abstract:
Un proceso para mejorar el contraste de filtros de color que comprende α ftalocianina de cobre o ε ftalocianina de cobre, en donde un colorante de 1,4-diamino-antraquinona o un derivado fusionado 1,9- del mismo, del cual el pico de absorción más batocrómico en solución en diclorometano del espectro visible está desde 575 a 615 nm, preferiblemente a 585 hasta 605 nm, - se agrega a α ftalocianina de cobre o ε ftalocianina de cobre y se dispersa junto con la ftalocianina de cobre en un medio líquido; - se agrega a una suspensión hecha preliminarmente que comprende un líquido y α ftalocianina de cobre o ε ftalocianina de cobre, suspensión que es dispersada entonces; - se agrega a una dispersión hecha preliminarmente que comprende un líquido y α ftalocianina de cobre o ε ftalocianina de cobre; o - se agrega un líquido, seguido por la adición de α ftalocianina de cobre o ε ftalocianina de cobre y dispersión en el líquido; comprendiendo la dispersión resultante tanto α ftalocianina de cobre o ε ftalocianina de cobre y el colorante de 1,4-15 diamino-antraquinona o el derivado fusionado 1,9- del mismo es aplicado a un sustrato; y se forma preferiblemente una capa de filtro de color patronizada formada por secado y/o curado.
Abstract:
The present invention is in the field of security documents, more particularly in the field of security elements aimed to protect security documents against copying (illegal reproduction) and counterfeiting. It discloses a security element having a coating layer(s) which changes its visual appearance after irradiation with light, especially with UV light and reverts back to the original state within a few seconds. Security documents comprising said security element, as well as a method for producing said security element, are also disclosed.
Abstract:
A method for producing infra-red inert substrates, including molded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a dispersed bis-oxodihydroindolylen-benzodifuranone colorant. The thus obtained, also claimed substrates so produced are reflective and transparent to much of the near infra red radiation not reflected. There are multiple applications for cases of devices comprising electronic components, outdoor construction elements, outdoor furniture, automotive, marine or aerospace parts, laminates, artificial leather or textile materials, as well as in polychrome printing processes and optical fibers. The thus obtained substrates can also be subjected to laser welding. New bis-oxo-dihydroindolylen-benzodifuranone compounds are also claimed.