54results about How to "Positive" patented technology

A main object of the present invention is to provide fine particles, a particle group, an anti-counterfeiting ink, an anti-counterfeiting toner, an anti-counterfeiting sheet, and an anti-counterfeiting medium enabling to achieve a high level of authentication. The object of the present invention is achieved by providing the fine particle comprising an identification information group including multiple types of identification information identifiable by magnification, characterized in that the identification information group includes first identification information and second identification information which cannot be identified at any magnifying power capable of identifying the first identification information.

The present invention relates to a device for multi-spinning and winding multiple synthetic threads. Thus a plurality of spinning nozzle assemblies are kept to a lower surface of a spinning box and are connected with a melt source. A cooling device used for cooling thread is provided behind the spinning box, wherein, the cooling device is provided with a blow case connected with a cooling air generator. The blow case is provided with a plurality of cooling cylinders which are configured concentrically with each spinning nozzle assembly and are provided with ventilated cylinder walls, wherein, each cooling cylinder passes through the blow case with distance from one another. At least one drawing device used for drawing threads and a winding device used for winding each thread to a roll are provided below the cooling device. For spinning and cooling the threads in a compact structure as possible, according to the invention, each spinning nozzle assembly is configured so that each spinning nozzle assembly can squeeze out at least two threads and furthermore each cooling cylinder can cool at least two threads.

Apparatus for dispensing lids and other articles such as plates, condiments, etc. comprising a threaded shaft powered by an electric motor which is used to raise a stack of items from the bottom of a storage hopper. A vacuum system, in a first embodiment comprised of a fan and a sliding tube, lifts the top most item from the stack, making it available to a user. A sensor at the top of the dispenser is used to detect the absence of an item in the dispensing position and again raises the stack of items, placing the top most item in position to be raised up by the vacuum system and again made ready for pick up by the user.

This invention generally relates to power semiconductor devices, and in particular to improved thyristor devices and circuits. The techniques we describe are particularly useful for so-called MOS-gated thyristors. We describe a thyristor comprising a plurality of power thyristor devices connected in parallel, each said thyristor device being operable at a device current which the device has an on-resistance with a positive temperature coefficient.

The invention provides a reciprocal type microwave ferrite switch. The reciprocal type microwave ferrite switch comprises a duplex ferrite phase shifter, a three decibels electric bridge A and a three decibels electric bridge B connected to two ends of the duplex ferrite phase shifter in a cascade connection mode; two ports of the three decibels electric bridge A is marked as the port 1 and port 4; two ports of the three decibels electric bridge b is marked as the port 2 and port 3. The duplex ferrite phase shifter comprises two phase shifters, two phase shifters have the same phase shift amount (recorded as 0 status) generated by the microwave signal or have the phase shift amount difference for 180 degrees (recorded as pi); there is no need to transform the magnetization state of the ferrite phase shifter once two ports of the four ports are switched on, and the microwave signal can be transmitted between the on ports in forward direction and reverse direction with reciprocal characteristic. The switch can be used for transmitting the receiving/sending signal without switching the on-off state while used in the microwave system; especially in the application of the radar, the close blind area will not be generated and the performance of the radar can be improved.

The present invention relates to a process for metallizing nonconductive plastics using etching solutions free of hexavalent chromium. The etching solutions are based on permanganate solutions. After the treatment of the plastics with the etching solutions, the plastics are metallized by means of known processes.

The invention provides a binary co-polymerized positive ion formaldehyde-free color-fixing agent and a synthetic method thereof. The synthetic method includes following steps: adding a weighed monomer 1: dimethyldiallyl ammonium chloride, a weighed monomer 2: diallyl amine, and glacial acetic acid into a four-mouth reaction kettle provided with a reflux condensation tube, a temperature meter and a stirrer; weighing anhydrous sodium hydrogen sulfite and potassium persulfate to prepare an initiator of an oxidation-reduction system; increasing the temperature to about 80 DEG C and adding 1/8 of the potassium persulfate and 1/8 of the anhydrous sodium hydrogen sulfite with temperature increasing degree being controlled to be not more than 10 DEG C; when the temperature increases to about 100 DEG C, adding dropwisely the rest initiator slowly with the temperature being controlled to be not higher than 104 DEG C, wherein the dropwise addition of the rest initiator is finished within 2.5 h, and then carrying out the reaction for 30 min continuously; and decreasing the temperature and discharging the material when the temperature is lower than 50 DEG C. The color-fixing agent is free of formaldehyde, is a quaternary ammonium salt typed environmental-protective color-fixing agent, is applied in color-fixing treatment in fabric dyeing with an active dye and can enable both color fastness to washing and color fastness to rubbing to be increased by 0.5-1 grade.

The invention discloses a chitosan or polyvinyl alcohol composite cataplasm matrix. The indigents of the invention and the weight of each indigent are as following: chitosan: 0.25 to 0.75g, polyvinyl alcohol: 0.75 to 1.25g, glutaric dialdehyde with the mass concentration being 2 percent: 0.28 to 0.32g, water: 16 to 20g, propanetriol: twice as much as the sum weight of chitosan and polyvinyl alcohol. The preparation procedure is as following: dissolving the polyvinyl alcohol with water and then adding glacial acetic acid to form acetum which is then added with chitosan until stirring to dissolve; adding propanetriol and glutaric dialdehyde successively, which is statically crosslinked to obtain hydrogel; coating the well-prepared hydrogel on non-woven fabrics evenly and then coating a polyethylene film. The chitosan or polyvinyl alcohol composite cataplasm matrix of the invention does not stimulate skin and has good property.

A linear motion guide unit is disclosed in which an end cap of a slider has a tube therein to feed even minor amounts of lubricant into a circulating circuit for rollers with no lubricant leakage, making sure of positive lubrication irrespective of working orientations or postures of the linear motion guide unit. A flexible tube made of fluorocarbon polymers is installed in the end cap to run from a lubricant inlet to a turnaround passage, thereby providing a lubricant-supply passage. A distal end of the tube fits into a three-way member made open to the turnaround passage on a spacer part, which is nested inside the end cap.

The present invention discloses a conductive composition, comprising: (a) at least one polymer; (b) at least one conductive filler, dispersed in the polymer; and (c) a coupling agent, applied to improved the adhesion between the polymer and the conductive filler and having a structure as follows: wherein M represents a metal atom or silicon; R1 and R2 represent a substituted or unsubstituted alkyl group; X represents sulfur or phosphorous; and a, m and n represent integers of 0 to 2.

The invention relates to all steel clothing of a roller for processing fibers in an opener, a scutcher, a cotton opener, or a carding machine. The all steel clothing comprises a first cloting wire and a second clothing wire. The first cloting wire comprises face portion teeth provided with a negative operating angle and a back top angle that ranges from -15 degrees to +15 degrees. The second clothing wire comprises teeth with a positive operating angle.

The invention relates to a flap drive system for a flap which is movably mounted on a furniture carcass. The flap drive system is arranged on a sidewall of the furniture carcass. The flap drive system includes a mechanical actuating unit having an actuating arm that can be connected to the flap and an accumulator acting upon the actuating arm, and an electric drive, fastened on the mechanical actuating unit for driving the flap. The electric drive has at least one electric motor, and a gear stage which allows the transmission of force from the electric drive onto the mechanical actuating unit. The gear stage is designed as a separate component, and has a housing that is independent from the mechanical actuating unit and the electric drive or an independent mounting plate.

An electrode assembly for use in an iontophoresis device for the transcutaneous administration of an active therapeutic species includes a base layer of conductive material which is consumed (oxidizes or reduces) preferentially to water, a first upper layer of sacrificial material coated on a first portion of the base layer wherein the sacrificial material is consumed preferentially to the conductive material of the base layer. A second upper layer of non-conducting material is coated on a second portion of the base layer, the second upper layer being spaced from the first upper layer, a narrow exposed linking area of the base layer material remaining therebetween. The exposed linking area of the base layer extends across the base layer. During operation of an associated iontophoresis device, the sacrificial material will be sequentially consumed; the first upper layer will be followed by the exposed linking area of the base layer which severs the base layer thereby breaking circuit continuity in the device.

The invention discloses an emulsion based on stabilizing agent, a preparation method and application thereof, belonging to the technical field of biomedicine. Chemical coprecipitation method is carried out on polylactic acid and iron halide to prepare stabilizing agent; or 1-(3 dimethylamino propyl)3 ethyl carbodiimide and polymine are further adopted for modifying to obtain stabilizing agent; stabilizing agent is mixed with water phase and oil phase to prepare emulsion, and emulsion is applied gene vector, magnetic resonance imaging contrast agent or ultrasonic diagnosis contrast agent. The stabilizing agent prepared in the invention has better hydrophily, lipophilicity and magnetism, and has certain electropositivity after modification; the prepared emulsion has magnetism and electropositivity, and a potential to be used as contrast agent for magnetic gene vector and magnetic resonance imaging; the emulsion prepared by supplying sulfur hexafluoride also has a potential to be used ascontrast agent for ultrasonic diagnosis.

A positive resist composition comprising (A) a compound that generates an acid upon irradiation of an actinic ray or radiation and (B) a resin having a property of increasing solubility in an alkali developing solution by the action of an acid and including a repeating unit containing a partial structure represented by formula (X) defined in the specification and a repeating unit represented by formula (Y) defined in the specification.

A filler for resinous composition is contained and used in resinous composition constituting electronic packaging material for electronic device, and includes: a filler ingredient including a crystalline siliceous material with a crystal structure made of at least one member selected from the group consisting of type FAU, type FER, type LTA, type MFI and type CHA, and/or type MWW, wherein: the filler ingredient is free of any activity when evaluated by an “NH3-TPD” method; and includes the crystalline siliceous material in an amount falling in a range allowing the filler ingredient to exhibit a negative thermal expansion coefficient. The filler ingredient may further be free of a surface in which silver, copper, zinc, mercury, tin, lead, bismuth, cadmium, chromium, cobalt and nickel are exposed.

The invention provides an ionic liquid grafted cellulose nanocrystal and a preparation method thereof. Hydroxyl on the surface of the cellulose nanocrystal and carboxyl of an organic acid monomer aresubjected to esterification reaction in a water phase; and free radical reaction is initiated between the ionic liquid and the organic acid monomer grafted on the surface of the cellulose nanocrystalby using a free radical initiation system in a water/water-soluble organic solvent blended solution or a water phase so as to initiate grafting of an alkenyl ionic liquid monomer on the surface of thecellulose nanocrystal. According to the method, the crystal form and crystallinity of the cellulose nanocrystal are not changed; the redispersibility of the cellulose nanocrystals in water is improved; the Zeta potential of the modified cellulose nanocrystalline suspension shows positive electricity, and meanwhile, the modified cellulose nanocrystalline suspension has pH responsiveness; and the heat resistance and residual carbon content of the cellulose nanocrystal are obviously improved.