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DIARYLETHENE COMPOUND UPDATE 新技術説明会

外国特許コード F180009389
掲載日 2018年4月20日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP030075
国際公開番号 WO 2018038145
国際出願日 平成29年8月23日(2017.8.23)
国際公開日 平成30年3月1日(2018.3.1)
優先権データ
  • 特願2016-165105 (2016.8.25) JP
発明の名称 (英語) DIARYLETHENE COMPOUND UPDATE 新技術説明会
発明の概要(英語) Provided is a diarylethene compound which does not require an additional component such as an acid for color development, while suitably exerting functions such as a switching function (coloring by means of ultraviolet light irradiation), excellent stability of a colored state under visible light, and irreproducible decoloring due to temperature increase in a low temperature environment (for example, room temperature or less). A diarylethene compound which is represented by general formula (1).
従来技術、競合技術の概要(英語) BACKGROUND ART
Refrigeration and refrigeration by the development of technology, the article of food or medicine or the like over a long time, quality and safety can be maintained becomes. In addition, the popularization and development of low-temperature transport technology, a variety of frozen food and refrigerated food market is also as has been circulated. For this reason, storage and distribution control the temperature of the article in the course of the step becomes important. For example, in the case where the food article, an unexpected events such as power failure, and the management cannot be a predetermined temperature, the food and bacterial growth, decay, such as a cause of the deterioration. In addition, the article is distributed internationally as the current, in the food distribution industry, the shipping of the product temperature at the equator under management (safety) is a problem.
Once the article is exposed to the conditions of controlled temperature or more to determine whether or not, only by viewing the article may be difficult to easily determined. Therefore, low-temperature storage food such as to an individual article, a temperature indicator or thermosensitive material affixed to control the temperature of the article have been tried. A temperature indicator or a thermosensitive material, the conditions of a temperature higher than the article management when subjected to discoloration, the photomask is then held over a long period, i.e. the discoloration is desirable that the irreversible type.
A temperature indicator or as a thermosensitive material, a variety of materials and application techniques have been proposed. For example, in Patent Document 1, the color former layer, the temperature detecting layer and a developer layer, low temperature non-reversible color change ('colored' or 'color' may also be referred) is the temperature history display has been proposed. Also, for example, in Patent Document 2, the dye precursor and on the support, at the time of heating the dye precursor and the reaction to form a colored color developer-sensitive recording layer containing as a main component, the permeation layer containing the pigment to binder, the melting point of 0°C or more of the temperature-sensitive material containing a microcapsule-containing layer, the protective layer are sequentially stacked has been proposed the thermochromic label.
However, Patent Document 1 to 2 and the thermochromic display or a temperature history of the label, and the temperature-sensitive agent having a melting point of the temperature-specific material is used for, after the manufacture of the label and the thermochromic display or a temperature history, state of use of the transport of up to, during storage, is maintained below a predetermined temperature is necessary. In addition, the material for the irreversible type, and the color once it, cannot be used. Therefore, these materials, the temperature changing mechanism capable of operating a switch mechanism is desirable.
Such a switch mechanism (the temperature history display material) as a material, colored by irradiation with ultraviolet light, the photochromic compound to the start of the temperature history (photochromic material) are sometimes used. For example, to Patent Document 3, the colored state, the conventional 10 times the sensitivity of the sensed temperature, the irreversible photochromic material to be decolored is disclosed. However, such a photochromic material in order to express a function, a strong acid such as trifluoromethanesulfonic acid is required. In addition, in the solid state is to express a predetermined function, it is necessary to uniformly add the acid, the acid is added, on the manufacturing steps, a serious problem.
In addition, the inventors of the present invention, described in non-patent document 1 compounds, the temperature change, ultraviolet light or visible light irradiation, it was found that discoloration are reversible. However, the compounds include, for example the surface of the article in a state in which the compound is exposed to the ultraviolet light is irradiated, is used as a temperature sensor when starting, the color is colored by the ultraviolet light irradiation, the articles in the environment, even when the visible light, even if the temperature in the, disappears. Therefore, visible light in an environment, the compound is a problem that cannot be used.
Further, the inventors of the present invention, ultraviolet light is irradiated after being colored, the colored state under visible light is extremely stable and, furthermore, from disappearing due to a irreversible by heating a compound (Patent Document 4) are found. However, the compound described in Patent Document 4 is, the half-life of a colored compound, and 30°C for about 30 at maximum, for example at a temperature lower than room temperature under a temperature change occurs in the case, little coloring is not lost. For this reason, this compound is, for example under a low temperature below room temperature is used as a temperature sensor difficult. In addition, also a compound of the non-patent document 1, under a lower temperature than room temperature when a temperature change occurs, for most color is not lost, in addition to the problems described above, difficult to use under a low temperature has a problem.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • OSAKA CITY UNIVERSITY
  • 発明者(英語)
  • KOBATAKE, Seiya
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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