Abstract:
The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.
Abstract:
Oil composition is provided containing a major amount of a natural and/or synthetic base oil and, as a marking substance, a detectable level of one or more compounds of formula IV compound supported thereon, such that the marking substance gives a colour reaction A method for detecting the presence of a marking substance in an oil composition is provided, wherein the oil composition is contacted with a test strip having an acidic upon contact with the test strip.
Abstract:
Fuel mixtures for direct methanol fuel cells are disclosed. The fuels include methanol and additives that react with water to produce methanol and other easily electro-oxidizable compounds including dimethyloxymethane, methylorthoformate, tetramethylorthocarbonate, trimethylborate, and tetramethylorthosilicate. Other additives to improve safety and efficiency of the fuel cell include sulfonated activated carbon particles and metal hydrides, such as LiAlH4, NaBH4, LiBH4, (CH3)2 NHBH3, NaAlH4, B2H6, NaCNBH3, CaH2, LiH, NaH, KH or sodium bis (2-methoxyethoxy) dihydridaluminate.
Abstract:
A liquid can be marked for identification purposes with at least first and second miscible markers. The markers are mixed in the liquid so that the ratio of the concentration of the first marker to the concentration of the second marker is substantially equal to a predetermined value. Thus, by comparing the ratio of the measured concentration of the first marker to the measured concentration of the second marker with predetermined values the liquid can be uniquely identified. The detectors can be connected to a processor and control unit (22) for initiation of testing, for processing of detection signal from the detectors, and for display of readout information. Processor and control unit (22) can include a look up table (23) for storing information about marking patterns, a comparison element (35) for comparing measured values with values supplied by look up table (23), and a display (30).
Abstract:
A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon at least one substituted anthraquinone dry having formula (I) 1 wherein X is O or S; Y is O, NR7 or S; R1 and R2 independently are hydrogen, alkyl, aryl, aralkyl, heteroalkyl, heterocyclic or alkanoyl; R3 and R5 independently are alkyl, aryl, aralkyl, heteroalkyl or heterocyclic; R4 and R6 independently are hydrogen or alkyl; R7 is hydrogen or alkyl; and wherein the substituted anthraquinone dye(s) has an absorption maximum in the range from 600 nm to 750 nm.
Abstract translation:一种液体石油烃的标记方法。 该方法包括向液体石油烃中加入至少一种干燥的具有式(I)的取代的蒽醌,其中X是O或S; Y为O,NR 7或S; R 1和R 2独立地是氢,烷基,芳基,芳烷基,杂烷基,杂环或烷酰基; R 3和R 5独立地是烷基,芳基,芳烷基,杂烷基或杂环基; R 4和R 6独立地是氢或烷基; R 7是氢或烷基; 并且其中所述取代的蒽醌染料的吸收最大值在600nm至750nm的范围内。
Abstract:
A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon: (i) at least one anthraquinone dye having an absorption maximum in the range from 710 nm to 850 nm selected from the group consisting of 1,4,5,8-tetrasubstituted anthraquinones and anthraquinone dimers; and (ii) at least one visible dye having an absorption maximum in the range from 500 nm to 700 nm.
Abstract:
A compound represented by formula I is used as a marker for organic products. 1 wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; R1 represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R2 represents a hydrogen atom or a group of the formula C(O)R4 where R4 is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; and R3 represents a hydrogen atom, a straight or branched chain alkyl group having 1 to 12 carbon atoms, a straight or branched chain alkoxy group having 1 to 12 carbon atoms, a hydroxyl group, or a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; and Z represents a hydrogen atom or a group of atoms that combine with Ar2 or R3 to form a lactone ring.
Abstract translation:由式I表示的化合物用作有机产物的标记物。 其中Ar1和Ar2各自独立地表示取代或未取代的亚苯基或取代或未取代的亚萘基; R1表示碳原子数1〜22的直链或支链烷基; R 2表示氢原子或式C(O)R 4的基团,其中R 4是氢原子或具有1至22个碳原子的直链或支链烷基; R 3表示氢原子,碳原子数1〜12的直链或支链烷基,碳原子数1〜12的直链或支链烷氧基,羟基或取代或未取代的苯基或取代或未取代的苯基, 未取代的萘基; Z表示与Ar 2或R 3结合形成内酯环的氢原子或原子团。
Abstract:
Amino azoic dyes having general formula (I) wherein: R1 is linear or branched alkyl having from 6 to 20 carbon atoms; R2 and R3 are independently H, CH3, C2H5, OCH3 or OC2H5; R4 and R5 are independently H, CH3 or C2H5; X is H or OH; and Y is hydrogen or poly-isopropxy chain (IA) wherein n is between 1 and 4. They are used as markers of oil distillation product.
Abstract:
Two or more dyes or markers, including a dye or marker having an absorbance peak in the 400 to 500 nm range and including a dye or marker having an absorbance peak in the 560 to 700 nm range are mixed together in appropriate ratios so when added to a liquid, such as a petroleum fuel, at combined levels of from 5 to 100 ppm, the colors of the dyes and/or markers cancel each other such that a “water-white” liquid still appears “water-white”.
Abstract:
A liquid fuel for combustion appliances, in which a combustion wick for sucking up the fuel by the utilization of capillarity is used, contains an alcohol as a principal constituent and contains a hydrocarbon compound, which has approximately the same boiling point as that of the principal constituent, as a flame reaction agent. By the addition of the flame reaction agent, which is not accompanied by the occurrence of clogging of the combustion wick, the combustion flame of an alcohol, which otherwise produces a colorless flame, is colored and its visual perceptibility is thereby enhanced, such that the structure of the combustion appliance may be kept simple and the flame stability may be obtained reliably.