摘要:
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (c) a charge transport material having the formula: R1—N═N—Ar1—X—Ar2—N═N—R2 where R1 and R2 comprise, each independently, a 4-oxo-2,5-cyclohexadiene-1-ylidenyl group; X comprises oxy, thio, sulfonyl, sulfinyl, sulfonyldioxy, azo, carbonyl, thiocarbonyl, carbonyldioxy, oxalyl, an arylene group, an arylenebisazo group, an imino group, a hydrazo group, a carbonimidoyl group, a vinylene group, or a combination thereof; and Ar1 and Ar2 comprise, each independently, an aromatic group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and the charge transport material are also described.
摘要:
N-oxides of benzylpyrimidines of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are as set forth hereinafter, are described. The 2,4-diamino-5-(4-bromo-3,5-dimethoxybenzyl)-pyrimidine is also described. The compounds referred to above are useful as potentiators of the antibacterial activity of sulfonamides.
摘要:
Disclosed is a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
摘要:
A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
摘要:
Reagents for cleaving or crosslinking of biomolecules using nondiffusible reactive intermediates and a method of using the reagents. In one embodiment, the DNA binding element includes a phenyl group on each end, and each terminal phenyl group contains at least one reactive group X: ##STR1## The reactive groups X may function to either cleave or crosslink the DNA to which the reagent is bound. Reactive groups that cleave the DNA include radical species formed by the decomposition of diazonium ions or the hydrolysis of azocarboxylates and cationic species formed, for example, by the photolysis of diazonium ions. Crosslinking moieties include nitrenes generated from the photolysis of azides.
摘要:
Compounds of the formula: ##STR1## where Q is a polymerizable olefin substituent;Ar is an aromatic moiety;C.sup..alpha. is the .alpha. carbon;R.sup.1 and R.sup.2 are independently hydrogen or aliphatic groups; andZ is a halogen, oxygen-containing, nitrogen-containing or sulfur-containing substituent complying with one of the formulae: --X, --OR, --SR or --NR.sub.2, wherein X is a halogen and each R is independently a hydrogen atom or an aliphatic moiety;contain azo groups which are stable with respect to thermal decompositon at high temperatures (180.degree. C. to 240.degree. C. and beyond) in the absence of moderate light, so that such compounds may be polymerized and processed at ordinary polystyrene process temperatures. However, the azo group in those compounds or in polymers made from them decomposes to initiate free radical polymerization at temperatures of 100.degree. C. to 120.degree. C. or less in the presence of moderate light.
摘要翻译:下式的化合物:其中Q是可聚合烯烃取代基; Ar是芳族部分; C alpha是α碳; R1和R2独立地是氢或脂族基团; 并且Z是符合以下通式之一的卤素,含氧,含氮或含硫取代基:-X,-OR,-SR或-NR2,其中X是卤素,并且每个R独立地是氢原子 或脂族部分; 包含在不存在中等光照的情况下在高温(180℃至240℃以上)相对于热分解稳定的偶氮基团,使得这些化合物可以在普通聚苯乙烯工艺温度下聚合和加工。 然而,这些化合物中的偶氮基团或由它们制备的聚合物中的偶氮基团在温和的光照下在100℃至120℃或更低的温度下分解引发自由基聚合。
摘要:
Disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle having excellent transmission characteristics; and a method for producing the yellow pigment microparticle. Specifically disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle that are characterized in that the difference between the maximum transmittance (Tmax) and the minimum transmittance (Tmin), namely (Tmax−Tmin) is 80% or more in the transmission spectrum at 350-800 nm; and a method for producing the yellow pigment microparticle.
摘要:
A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a fluorinating agent containing IF5 and at least one member selected from the group consisting of acids, bases, salts and additives.
摘要:
Compounds of the formula: ##STR1## wherein Q is a polymerizable olefin substituent;Ar is an aromatic moiety;C.sup..alpha. is the .alpha. carbon;R.sup.1 and R.sup.2 are independently hydrogen or aliphatic groups; andZ is a halogen, oxygen-containing, nitrogen-containing or sulfur-containing substituent complying with one of the formulae: --X, --OR, --SR or --NR.sub.2, wherein X is a halogen and each R is independently a hydrogen atom or an aliphatic moiety;contain azo groups which are stable with respect to thermal decomposition at high temperature (180.degree. to 240.degree. C. and beyond) in the absence of moderate light, so that such compounds may be polymerized and processed at ordinary polystyrene process temperatures. However, the azo group in those compounds or in polymers made from them decomposes to initiate free radical polymerization at temperature of 100.degree. C. to 120.degree. C. or less in the presence of moderate light.
摘要翻译:下式的化合物:其中Q是可聚合烯烃取代基; Ar是芳族部分; C alpha是α碳; R1和R2独立地是氢或脂族基团; 并且Z是符合以下通式之一的卤素,含氧,含氮或含硫取代基:-X,-OR,-SR或-NR2,其中X是卤素,并且每个R独立地是氢原子 或脂族部分; 含有在不存在中等光照的情况下相对于高温(180〜240℃以上)的热分解稳定的偶氮基,使得这些化合物可以在普通聚苯乙烯工艺温度下聚合和加工。 然而,这些化合物中的偶氮基团或由它们制备的聚合物中的偶氮基团在温和的光照条件下,在100℃至120℃或更低的温度下分解引发自由基聚合。
摘要:
Tris(disubstituted amino)sulfonium perfluorocarbanion salts, process for their preparation and the use thereof as catalysts in group transfer polymerization.