77results about How to "Improve electrostatic properties" patented technology

In particles for image displaying used in an image display device, in which one or more kind of particles are sealed between opposed substrates, at least one substrate being transparent, and, in which the particles are made to fly and move so as to display an image, each particle has a micro-irregularity at its surface. Moreover, in an image display device, in which one or more kind of particles are sealed between opposed substrates, at least one substrate being transparent, and, in which the particles, to which an electrostatic field produced by two kinds of electrodes having different potentials is applied, are made to fly and move so as to display an image, use is made of each particle having a micro-irregularity at its surface.

A gas separation apparatus which uses electrostatic precipitators and a DC power supply is controlled to optimally remove moderate to high resistivity ash. The DC power supply is pulse width modulated to maximize the product of the peak electric field and the average electric field. The method used to optimize operation includes selecting initial on and off times for the power supply, operating the power supply using the initial off and on times, and progressively decreasing the off time. A determination is made whether the off time may be further decreased. Ultimately, the on and off time intervals that produce the highest peak and average voltage are determined, and the system is operated using these parameters. A procedure may be periodically repeated to monitor the process and detect if there has been a change in the system that would require new time intervals. The novel separation apparatus and control method offer particular synergy when applied to the effluent stream from a coal-fired electric power plant or other similar gas streams.

The invention provides a frictional power generator employing a dual-polymer composite film, a preparation method thereof and a vibration sensor. The frictional power generator employing the dual-polymer composite film comprises a first electrode layer, a first high polymer insulated layer and a second electrode layer which are arranged in a laminated manner, wherein the first high polymer insulated layer is a double-polymer composite film; the double-polymer composite film comprises a polymer porous film layer and a polymer covering layer; the polymer covering layer covers the polymer porous film layer and is filled in pores of the polymer porous film layer; the first electrode layer and the second electrode layer serve as the output ends of the frictional power generator. According to the frictional power generator applying the dual-polymer composite film disclosed by the invention, the frictional power generation performance, the vibration performance and the acoustic sensing performance of the frictional power generator can be obviously improved.

A multiplexed emitter source distributor electrode, a related multiplexed electrospray nozzle, a related multiplexed electrospray apparatus and a related coating method that uses the multiplexed electrospray apparatus are all predicated upon at least one of: (1) a linear emitter source density greater than about 15 emitter sources per centimeter; and (2) an area emitter source density greater than about 225 emitter sources per square centimeter. The distributor electrode comprises other than a silicon material (i.e., a metal, metal alloy, ceramic or polymer material). The distributor electrode may be fabricated using a computerized numerical control method that provides the coating method with enhanced uniformity. The nozzle and the apparatus may also use a stepped slotted extractor electrode.

Improved organophotoreceptor comprises a photoconductive element comprising: (a) a charge transport material having the formula where Y1 and Y2 are, each independently, a bond, —CR1═N—NR2—, or —CR3═N—N═CR4— where R1, R2, R3, and R4 comprise, each independently, H, an alkyl group, an alkenyl group, a heterocyclic group, or an aromatic group; X1 and X2 are, each independently, a linking group; T1 and T2 are, each independently, a thiiranyl group, H, an alkyl group, an alkenyl group, or an aromatic group with the proviso that at least one of T1 and T2 is a thiiranyl group; and Ar comprises an aromatic group with the proviso that when both Y1 and Y2 are a bond and one of T1 and T2 is not a thiiranyl group, Ar comprises a bis[(N,N-disubstituted)amino]aromatic group or a bicarbazole group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.

An electrophotographic photoreceptor, including an electroconductive substrate; an undercoat layer located overlying the electroconductive substrate; and a photosensitive layer located overlying the undercoat layer, wherein the undercoat layer comprises a blocked isocyanate compound and a basic amine.

A process for preparing superfine aluminium hydroxide powder with low electric conductivity includes such steps as desiliconizing the solution of sodium aluminate, adding crystal seeds, decomposing, filtering, washing the filtered cake, refiltering, and baking.

This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element havinga) a charge transport compound having the formulaR1 is an aromatic group, an alkyl group, an alkenyl group, or a heterocyclic group;R2 comprises an (N,N-disubstituted)arylamine group;R3 comprises an epoxy group;R4 is H, an aromatic group, an alkyl group, an alkenyl group, or a heterocyclic group; andX is a first linking group; and(b) a charge generating compound.The epoxy group can be reacted with a functional group within the polymer to form a polymeric charge transport compound either directly or through a crosslinking agent. Corresponding electrophotographic apparatuses and imaging methods are also described.

The directional effect of a static directional microphone is to be improved. In particular shadowing effects of the head for a hearing device worn on the head of the user are to be taken into account when adjusting at the directional microphone. To this end it is proposed that—like the adaptation of an adaptive directional microphone—the energy or power of the directional microphone signal emitted by the directional microphone is minimized, with the difference that in this case extremely long adaptation times are predetermined.

The invention discloses a display panel, a display panel driving method and a display device. The display panel includes a display area, a first non-display area, and a second non-display area. The first non-display area is provided with a through hole, and the display panel is further provided with a discharge unit, a plurality of data lines and a plurality of scan lines. The discharge unit is disposed in the second non-display area, the data line includes at least one first data line and a plurality of second data lines, at least one first data line passes through the first non-display areaand is electrically connected to the discharge unit, the plurality of scan lines include at least one first scan line and a plurality of second scan lines, and at least one first scan line passes through the first non-display area. During the transmission of the scan signal by the at least one first scan line, the discharge unit releases the charge on the at least one first data line, so that thestatic electricity around the through hole can be released, the electrostatic performance around the through hole is improved, and damage to the through hole due to static electricity is prevented.

The invention relates to a semiconductor device with a height-controllable fin and a preparation method. The preparation method comprises the following steps: providing a semiconductor substrate; forming a first semiconductor material layer, a second semiconductor material layer and a hard mask layer on the substrate; etching the hard mask layer, a second semiconductor material layer and a first semiconductor material layer to form a trench and a fin pattern; performing isotropic etching to remove a part of the first semiconductor material layer in the fin pattern to form a virtual fin with reduced critical size; depositing dielectric layers to fill the trench and cover the fin pattern; etching the dielectric layers till the second semiconductor material layer below, in order to expose the second semiconductor material layer to form the fin. The preparation process of the fin is easy to control, and the obtained device is more stable.

This invention provides a static elimination device and method during cigarette package production, wherein, the device comprises static generator on conveyer with static detectors 1 and 2 on front and back of the said generator and connected with the generator to form electric charge detection and feedback loop, they send the detected static polarity and voltage into generator to generate static charges with opposite polarity, then blowing the static to transparent paper material to balance the static, then feedbacking the detected result to generator. The invention solves problems in existing device, has simple structure, decides automatically the polarity, balances charge and eliminates static safely and quickly.

This invention includes an organophotoreceptor having an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a polymeric charge transport composition with the formula where Y1 and Y2 are, each independently, a bond, a —CR1═N—NR2— group, or a —CR3═N—N═CR4— group; R, R′, R″, R1, R2, R3, and R4 comprise, each independently, H, an alkyl group, an alkenyl group, a heterocyclic group, an aromatic group, or a part of a ring group; X1 and X2 are, each independently, a linking group; T2 comprises a thiiranyl group, H, an alkyl group, an alkenyl group, or an aromatic group; Ar comprises an aromatic group; Z is a bridging group; and n is a distribution of integers between 1 and 100,000 with an average value at least 2; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging processes are also described.

An organophotoreceptor comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a charge transport composition with the formula where Y1 and Y2 are, each independently, an arylamine group; X1 and X2 are, each independently, a linking group; R1 and R2 are, each independently, a hydrogen, an alkyl group, an alkenyl group, a heterocyclic group, an aromatic group; Z is a bridging group; and n is a distribution of integers between 1 and 100,000 with an average value greater than 1; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.

Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a polymeric charge transport material having the formula where n and m are each a distribution of integers, and the n units of R1—Si—X1—Ar1 and m units of R2—Si—X2—Ar2—X3-Z form either a random, an alternative, or a block copolymer; R1 and R2 comprise, each independently, an alkyl group, an alkoxy group, an alkenyl group, an alkynyl group, a heterocyclic group, or an aromatic group; X1, X2, and X3 comprise, each independently, a bond or a linking group; A1 and A2 are each a terminal group; Ar1 and Ar2 comprise, each independently, an aromatic group; and Z comprises a functional group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and methods of preparing the polymeric charge transport material are described.

Disclosed is a speaker module, comprising a module housing and a speaker unit accommodated in the module housing. The speaker unit partitions a module cavity encircled by the module housing into two cavities, namely a front acoustic cavity and a rear acoustic cavity. A separator component is provided within the rear acoustic cavity. The separator component partitions the rear acoustic cavity into an accommodating cavity and a sound-absorbing cavity. The sound-absorbing cavity is filled with sound-absorbing particles. An antistatic material is added into the housing material of the module housing at where the sound-absorbing cavity is located, or the antistatic material is coated on the surface of the module housing at where the sound-absorbing cavity is located, and the antistatic material is either an electrically-conductive material or an antistatic agent. The speaker module of the present invention is capable of greatly increasing the fill rate of the sound-absorbing particles in the sound-absorbing cavity of the rear acoustic cavity of the speaker module, thus allowing the space of the rear acoustic cavity of the speaker module to be fully utilized and the sound-absorbing particles to fully exert the effects thereof in improving the acoustic properties of the speaker module, and greatly increasing the acoustic properties of the speaker module.

The invention discloses a film shaking dust remover. The film shaking dust remover comprises a frame, a loading module, a shaking module, an electrostatic dust removing module and a collecting module;the loading module is arranged beside the transverse direction of the frame, and is used for conveying films to the shaking module; the shaking module is in butt joint with the loading module, and comprises a shaking box; two transmission rollers are transversely arranged in the shaking box at intervals, and are in transmission connection through multiple strip-shaped shaking lines radially arranged at intervals; at least one transmission roller is connected with a transmission device; at least two shaking rotary modules are arranged between the two transmission rollers; all the shaking rotary modules are embedded in the multiple shaking lines, and are driven to synchronously rotate through driving modules, so that the multiple shaking lines are synchronously shaken up and down to bump the films; the electrostatic dust removing module comprises multiple ion air rods; the multiple ion air rods are arranged in the shaking box, and are symmetrically arranged up and down relative to the shaking lines for removing static electricity of dust; and the collecting module is arranged on the other transverse side of the frame, is in butt joint with the shaking module, and is used for conveying and unloading the electrostatic-dedusted films.

The present invention provides a developer for electrophotography which is superior in property of build up of electrification and in charge stability even in environments of high temperature and high humidity or in an environment of low temperature and low humidity where it is difficult for a developer to retain its electrostatic charge performance, and which can provide an image free from fogging and decrease in density for a long term, that is, a developer for electrophotography containing composite oxide particles which include metal titanate particles containing titanium as a first metal atom and a second metal atom and containing therein 0.009 to 0.350% by weight of a third metal atom selected from the group consisting of the metal atoms belonging to Group 5A of the long form of the periodic table of elements.

The invention discloses an obstructive explosionproof composite and a preparation method thereof. Honeycomb aluminum foil or honeycomb paper foil is used as a structural base material, and after the surface of the structural base material is coated with a coating having corrosion prevention and electric conduction function, the problems that existing metal obstructive explosionproof materials areeasy to corrode and short in use life, and cannot be used in dynamic fuel storage vessels are solved. When the honeycomb paper foil is used as the structural base material, production cost of an existing obstructive explosionproof material system can be substantially reduced, and the obtained obstructive explosionproof composite is suitably applied to large oil material storage vessels, and simultaneously the preparation method of the obstructive explosionproof composite facilitates large area popularization and usage of the obstructive explosionproof composite.

A multimodal polyethylene having an inverse comonomer distribution, as well as a process carried out in a single reactor in the presence of a mixed catalyst composition comprising two different polymerization catalysts, are described. The multimodal polyethylene has a density of 0 915-0 970 g / cm3, a weight average molar mass Mw of 100 000-900 000 g / mol, and a polydispersity Mw / Mn, of at least 15. The at least one homopolymer has a density of 0 950-0 975 g / cm3, a weight average molar mass Mw of 10 000-90 000 g / mol and a polydispersity Mw / Mn, higher than 3 and lower than 10, and the at least one copolymer has a polydispersity Mw / Mn between 8 and 80.

The invention discloses a stain-resistant and easy-to-scrub automotive interior material. The material is prepared from raw materials in parts by weight as follows: 30-35 parts of bamboo fibers, 2-3 parts of antimony trioxide, 5-7 parts of shell powder, 10-12 parts of waterborne polyurethane, 0.2-0.4 parts of a silane coupling agent kh570, 1-2 parts of polyethylene wax, 10-13 parts of polyvinyl alcohol, 100-105 parts of polylactic acid, 60-68 parts of dimethylacetamide, 30-35 parts of dimethyl sulfoxide, 11-12 parts of silver-loaded zirconium phosphate, 3-4 parts of emery, 4.5-5.5 parts of urea, 3-4 parts of light calcined magnesia, 6-7 parts of borax and a proper amount of deionized water. The material has excellent anti-static, fire-proof and easy-to-clean properties, cannot adsorb dust on the surface, has excellent comprehensive performance, can be processed into various shapes of interiors and is worth popularizing.

The present invention provides organophotoreceptors comprising an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula; where X1 and X2 are, each independently, a linking group; Ar comprises an aromatic group; R1, R2, and R3 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group; and n is a distribution of integers between 1 and 100,000 with an average value of greater than one; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods (processes), and methods of forming the charge transport material are described.

An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where X1 and X2 are, each independently, a linking group; Ar comprises an aromatic group; R1, R2, and R3 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group; and n is a distribution of integers between 1 and 100,000 with an average value of greater than one; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and methods of forming the charge transport material are described.

An electrophotographic photoreceptor includes a conductive substrate, a photoconductive layer formed on the conductive substrate containing a charge generating material and a charge transferring material, and a protective layer formed on the photoconductive layer for protecting the photoconductive layer. The protective layer contains an alcohol-soluble polyamide resin and an alcohol-soluble chelate compound. According to the present invention, the electrophotographic photoreceptor has the protective layer with chelate compound has improved adhesive properties to the photoconductive layer and improved the electrostatic characteristic and productivity.