摘要:
Certain phthalocyanine colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.
摘要:
Compounds of general formula I, II, III and IV: Formula (I) wherein the variables have the meaning given in the description, and a process for the preparation of compounds of general formula I, II, III and IV are disclosed. The use of the compounds of general formulae II, III and IV each prepared according to the abovementioned processes and of compounds of general formulae II, III and IV per se for the preparation of dye-sensitized solar cells; and such dye-sensitized solar cells per se are disclosed.
摘要:
Tagged products (including tagged petroleum products) and methods of detecting the same are disclosed. The tagged petroleum products are tagged with a violanthrone, e.g., a substituted violanthrone and/or an isoviolanthrone, e.g., a substituted isoviolanthrone.
摘要:
The present invention provides anthraquinonyl and anthronyl dyes and dichroic light polarizers based on the dyes. The dichroic light polarizer includes two separate embodiments. In the first embodiment, the dye molecules are aggregated into particles oriented in a predetermined direction on the surface of a substrate to enable the dye to polarize light transmitted through the dye. In the other embodiment, the dye molecules are molecularly oriented in a non-periodic arrangement of different polarizing elements on the surface of a substrate. Each of the polarizing elements has a differing orientation of the polarization vector in the substrate plane and/or a different color. The dichroic light polarizer may contain one or more additional dye layers and may have a transparent layer intermediate between the dye layers.
摘要:
Kontinuierliches Verfahren zur umweltfreundlichen Trocknung und Reinigung von Benzanthron, wobei folgende Verfahrensschritte zur Anwendung gelangen: Aufgeben einer pumpfähigen, Benzanthron enthaltenden Raste auf eine in einem Rührkessel vorliegenden Schmelze, Entwässern und Aufschmelzen der Paste mittels Dampf, Kondensieren der aus dem Rührkessel austretenden Wasserbrüden, Abschuppen der im Rührkessel vorliegenden Schmelze mittels einer Walze und Abfüllen der bei der Abschuppung entstehenden Schuppen.