摘要:
A charge control agent comprises a barbituric acid derivative represented by the following general formula (1): wherein R1 to R8 are alkyl groups, cycloalkyl groups or aryl groups, V, W, X, Y and Z are carbon atoms or nitrogen atoms, at least two of which being carbon atoms, and p, q, r, s and t are the numbers of 0 or 1.
摘要:
[Problems]To provide a charge control agent which contains no heavy metal component, therefore, does not adversely affect the environment and, besides, is colorless or is light-colored lending itself well to be applied to colored toners, and is little affected by the environmental conditions, and exhibits the effect of imparting high charging power even when it is used for polymerized toners. [Means for Solution]The charge control agent comprises a barbituric acid derivative represented by the following general formula (1): wherein R1 to R8 are alkyl groups, cycloalkyl groups or aryl groups,V, W, X, Y and Z are carbon atoms or nitrogen atoms, at least two of which being carbon atoms, andp, q, r, s and t are the numbers of 0 or 1. [Selected Drawing]None
摘要:
To provide a charge controlling agent for electrophotography, which presents sufficient triboelectric chargeability to a toner, is useful particularly for a color toner and further for a polymerized toner, increases a charge rising rate, has a high electric charge amount, is excellent in charging characteristics, stability over time and environmental stability and yet is safe without posing any problem regarding waste regulations, and a negatively chargeable toner for developing an electrostatic image, which uses such a charge controlling agent and which has a high charging performance. A charge controlling agent comprising, as an effective component, at least one type of cyclic phenol sulfide represented by the following formula (1), and a toner comprising such a charge controlling agent:
摘要:
The present invention provides a positive-charge control agent containing, as an active substance(s), one or two or more rhodanine compounds represented by the following formula (1). wherein R1 represents a hydrogen atom, etc.; R2 represents a hydrogen atom, etc.; and R3 to R7, which may be identical to or different from each other, represent a hydrogen atom, a cyano group, a trifluoromethyl group, a nitro group, etc. R2 to R7 may be joined to each other to form a ring. V, W, X, Y and Z represent a carbon atom or a nitrogen atom and 0 to 3 of V, W, X, Y and Z are nitrogen atoms, with the proviso that at least one of R3 to R7 is a linear or branched alkyl group having 1 to 4 carbon atoms substituted with three or more fluorine atoms etc.
摘要翻译:本发明提供一种含有下述式(1)表示的一种或两种以上的绕丹宁化合物作为活性物质的正电荷控制剂。 其中R1表示氢原子等; R2表示氢原子等; R 3〜R 7可以相同或不同,表示氢原子,氰基,三氟甲基,硝基等。R 2〜R 7可以相互结合形成环。 V,W,X,Y和Z表示碳原子或氮原子,V,W,X,Y和Z的0〜3为氮原子,条件是R3〜R7中的至少一个为直链或 被3个以上氟原子取代的碳原子数为1〜4的支链烷基等
摘要:
The present invention provides a charge control agent containing, as an active substance(s), one or two or more thiazolidinedione derivatives represented by the following formula (1), where R1 represents a hydrogen atom, etc.; R2 represents a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms which may have a substituent, etc.; R3 to R7, which may be identical to or different from each other, represent a hydrogen atom, a chlorine atom, a linear or branched alkyl group having 1 to 8 carbon atoms which may have a substituent, etc., and may be joined to each other to form a ring; and V, W, X, Y and Z represent a carbon atom or a nitrogen atom, and 0 to 3 of any of V, W, X, Y and Z are nitrogen atoms which do not have the substituents of R3 to R7.
摘要:
The present invention provides a charge control agent containing, as an active substance(s), one or two or more thiazolidinedione derivatives represented by the following formula (1), where R1 represents a hydrogen atom, etc.; R2 represents a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms which may have a substituent, etc.; R3 to R7, which may be identical to or different from each other, represent a hydrogen atom, a chlorine atom, a linear or branched alkyl group having 1 to 8 carbon atoms which may have a substituent, etc., and may be joined to each other to form a ring; and V, W, X, Y and Z represent a carbon atom or a nitrogen atom, and 0 to 3 of any of V, W, X, Y and Z are nitrogen atoms which do not have the substituents of R3 to R7.
摘要:
The present invention provides a charge control agent containing, as an active substance(s), one or two or more hydantoin derivatives represented by the following formula (1): wherein R1 and R2, which may be identical to or different from each other, represent a hydrogen atom, etc.; R3 represents a hydrogen atom, etc.; R4, to R8, which may be identical to or different from each other, represent a hydrogen atom, a chlorine atom, a linear or branched alkyl group having 1 to 8 carbon atoms which may have a substituent, etc.; R3, to R8 may be joined to each other to form a ring; and V, W, X, Y and Z represent a carbon atom or a nitrogen atom, and 0 to 3 of V, W, X, Y and Z are nitrogen atoms which have no substituent of R4 to R8.
摘要:
The components which have suwari-inhibiting action of rice bran extracts is reduced or removed, enabling broader utilization of them for fish paste products. A rice bran extract in which components having specific physiologically active functions are singled out, and these components are reduced or removed. The components are suwari-inhibiting components. The rice bran extract is preferably a water extract. The components are reduced or removed by precipitation or dialysis. The precipitation is calcium precipitation. The suwari-inhibiting components are phytin and/or phytic acid. The rice bran extract can be used as a fish paste additive.
摘要:
[Problem] To provide a method for producing a triarylamine compound in which the reaction can be attained under a practical condition, the purification operation after the reaction is simple, the environmental burden is reduced and the production efficiency is high.[Means for Resolution] A method for producing a triarylamine compound through amination of a diarylamine compound and an aryl halide, wherein a catalyst comprising a salt of an imidazolium derivative represented by the following general formula (1) and a palladium compound is used, as combined with a base and a solvent to coexist therein.
摘要:
Method and system for identifying history of console devices capable of rapidly analyzing and determining a factor of obstacle of a computer system due to misoperation of a console device in the computer system comprising at least one central processing unit including a computer, a main console device connected thereto and a plurality of sub-console devices for controlling the operation of the computer. History of the console devices as to which one of the sub-console devices command data has been issued from and/or which one of the sub-console devices command data has been sent to is examined to analyze and determine the factor of computer system obstacle.