76results 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.

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.

This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having

• • a) a charge transport compound having the formula

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 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 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 M_w/M_n, of at least 15. The at least one homopolymer has a density of 0 950-0 975 g/cm³, a weight average molar mass M_w of 10 000-90 000 g/mol and a polydispersity M_w/M_n, higher than 3 and lower than 10, and the at least one copolymer has a polydispersity M_w/M_n 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.

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.

A multilayer thermoplastic container for storing and transporting liquid contents, especially combustible or explosive contents, is made of at least three superimposed layers and includes at least one layer for discharging an electric charge. The innermost layer of the container in contact with the liquid content is made of virgin material and a second integrated inner layer which is covered by the innermost virgin material layer is electrically conductive as a result of incorporated additives, e.g. conductive carbon black and is covered on the outside by another electrically non-conductive layer. Electric charge carriers that accumulate on the surface of the thin inner layer due to the friction with the content are “suctioned through” large areas of the inner, electrically non-conductive layer by the second, electrically conductive layer and discharged.