63results about How to "Long stability" patented technology

An organic polymeric phosphorescent compound that is stable and emits very highly efficient phosphorescence, used as a material of an organic light-emitting device is provided. Also, an organic light-emitting device employing the organic polymeric phosphorescent compound's provided. The phosphorescent compound according to the present invention is a neutral organic polymeric phosphorescent compound emitting phosphorescence and used in an organic light-emitting device, characterized in that a phosphorescent unit being a repeat unit for emitting phosphorescence and a carrier transporting unit being a repeat unit for transporting a carrier are included.

The invention discloses a distributed thermal management system for battery modules. The system comprises a plurality of battery modules. A thermal management control device is arranged on each battery module. Each thermal management control device comprises at least one temperature detection and control module, at least one heating module and at least one cooling module, wherein the temperature detection and control modules are used for detecting the temperatures of the battery modules in real time, comparing detected temperature values with a preset battery module working temperature value range, and correspondingly starting the heating modules for heating operation or starting the cooling module for cooling operation according to comparison results. According to the distributed thermal management system for the battery modules, thermal management over a plurality of batteries can be effectively realized, and the batteries can be ensured to work at normal working temperature all the time regardless of a high temperature environment or a low temperature environment, so that the overall working performance, long service life and stability of the batteries are ensured.

A method for preparing a neutral, stable and transparent photocatalytic titanium dioxide sol is provided. The method comprises (1) contacting an alkaline titanium dioxide sol with an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol; (2) neutralizing the peptized alkaline titanium dioxide sol; and (3) obtaining or collecting the neutral, stable and transparent photocatalytic titanium dioxide sol. The titanium dioxide sol is stable and transparent over a range of pH of about 7.0 to about 9.5. The titanium dioxide sol may include crystallites of titanium dioxide having an average particle size of less than about 10 nm with at least 90% of the crystallites being in the anatase form.

The present invention pertains to a method for preparation of superhydrophobic timber on the basis of a sol-gel method, and the method is as follows: (1), silica sol synthesis, to be more specific, materials are prepared in the volume ratio of ammonia to anhydrous ethanol to ethyl orthosilicate of 1:15 to 17:1; (2), hydrophobic modification of monodispersed nano silica sol, to be more specific, hexadecyl trimethoxysilane, or triethoxysilane-1H, 1H, 2H, 2H-heptadecafluorodecyl silane is used for hydrophobic modification of the synthesized monodispersed nano silica sol, and the hydrophobic agent promotes mutual aggregation of nanoparticles to promote the formation of aggregates of silica nanoparticles; and (3) timber coating processing, to be more specific, the timber surface is coated with the hydrophobically modified silica sol solution by dipping or spraying process. Contact angles of the processed timber surface and water droplets are greater than 150 degrees, roll angles are less than 10 degrees, and a superhydrophobic film has good resistance to acid and alkali erosion and stability in high-humidity environment. The method is simple in operation, less demanding on equipment, and capable of scale production, and has wide market prospects.

The present invention provides a positive electrode active material for a secondary battery, which includes a core, a shell disposed to surround the core, and a buffer layer which is disposed between the core and the shell and includes pores and a three-dimensional network structure connecting the core and the shell, wherein, the core, the shell, and the three-dimensional network structure of the buffer layer each independently include a lithium nickel manganese cobalt-based composite metal oxide and at least one metallic element of the nickel, the manganese, and the cobalt has a concentration gradient that gradually changes in any one region of the core, the shell, and the entire positive electrode active material.

The invention discloses a real-time monitoring sensor for durability of concrete structures. The real-time monitoring sensor comprises a sensor shell, and further comprises a reference electrode, a rebar electrode, an auxiliary electrode, a chlorion probe, a pH probe and a concrete resistivity probe. The auxiliary electrode is laid on the upper surface of the shell, at least parts of the reference electrode, the rebar electrode, the chlorion probe, the pH probe and the concrete resistivity monitoring probe are exposed out of the upper surface of the sensor shell to serve as detecting ends, and the other ends are connected with copper cables which penetrate through the sensor shell from top to bottom and stretch out of the shell. According to the real-time monitoring sensor, not only corrosion rate, chlorion concentration and pH of rebar, but also concrete resistivity can be monitored in real time; further, system resistance can be compensated during the monitoring of rebar corrosion current density, and corrosion rate of rebar can be monitored more accurately by the monitoring of concrete resistance.

The invention relates to the field of microorganisms and discloses lactobacillus plantarum with a weight reducing function and application thereof. The lactobacillus plantarum 1701 strain is separatedfrom a yogurt powder sample collected from rural areas of Shigatse in the Tibet Autonomous Region. The strain is preserved in the China General Microbiological Culture Collection Center on October 23, 2019, and the microorganism has the preservation number of CGMCC NO.18728. The lactobacillus plantarum 1701 has excellent tolerance and adhesion, can remarkably reduce the weight of a rat, reduce fat accumulation in a body, reduce the viscera ratio and body fat ratio, reduce the leptin level and reduce blood lipid and can be used in medicines, health-protecting products and health foods for preventing and treating obesity. Furthermore, the strain still has a weight reducing function after inactivation, thus having rich product mode, wide application range, high product stability and long preservation period.

A rotational obstruction and beacon signaling apparatus is disclosed, in which chip-on-board (COB) packaged light emitting diodes (LEDs) are employed to provide a flashed emission pattern with high luminous intensity. The flash sequence of individual LEDs is controlled by an electronic timing circuit to simulate a rotational or other motional signaling effect.

A multicomponent composition for filling and/or grouting cracks, flaws, and cavities in structures or earth and stone formations, including: i) water; ii) cement; iii) an aqueous plastic dispersion; and iv) at least one monomer, which can be radically polymerized, or a polyisocyanate. A material is thus obtained as a sealant, which displays great adjustment capabilities of hardness and reaction time, in addition to its cost-effectiveness. Such a composition unifies positive properties of various materials as a sealant, such as expansion capacity and swelling capacity.

This invention provides a patch with less skin stimulation, excellent in long time store stability and heat stability and having favorable tack during use. The patch comprising a styrene-isoprene-styrene block copolymer, polyisobutylene, tackifier, plasticizer and pharmaceutically effective ingredient, in which two or more kinds of polyisobutylene of different average molecular weight are used in combination and the viscosity of the adhesive of the patch is between 1500 and 30,000 poise (at 60° C.) and the tack of the patch is from 5 to 200 g/10 mm.

The present invention provides novel slow-releasing ophthalmic compositions containing Povidone Iodine (PVP-I) and uses thereof in the treatment of acute infections of at least one eye tissue from bacterial, mycobacterial, viral, fungal, or amoebic causes and for preventing such infections in appropriate clinical settings. Each of the ophthalmic compositions contains povidone iodine, osmotic pressure regulator, suspending agent and EDTA-Na, wherein povidone iodine exists as microsphere particles formed by PVP-I and sodium alginate.

Providing a hydrated food which contains theanine and in which theanine content can stably be maintained even when the hydrated food is preserved for a long period of time and the taste threshold of the food can be improved and the peculiar taste can be flavored. The problem can be overcome by a hydrated food containing theanine and pyroglutamic acid. In this case, it is preferable that pH ranges from about 2.8 to about 7.5. Furthermore, it is preferable that a content of pyroglutamic acid ranges from about 1% to about 20% relative to a content of theanine.

The invention relates to a controlled-release agent and particularly relates to a controlled-release agent for purifying a spatial environment. The controlled-release agent comprises the following components in percentage by mass: 10-30% of solid chlorine dioxide, 12-25% of moisture absorbent, 8-15% of filling agent, 13-28% of binder, 7-12% of release agent and 5-13% of spices. The controlled-release agent at least has the following beneficial effects that (1) acid activation is not needed, and the controlled-release agent is convenient to use; (2) the condition that the controlled-release agent is prepared while being used is avoided, and the controlled-release agent can be opened in the air after being unpackaged; (3) the controlled-release agent can be used according to actual conditions, and the effective content of chlorine dioxide can be flexibly regulated; (4) the stability of the controlled-release agent is good, and the guarantee period of the controlled-release agent is long; and (5) the required raw materials are wide in source and low in cost, and therefore, the controlled-release agent is suitable for industrial production.

A flexible shaft spinnerbait fishing lure assembly comprising a main flexible shaft of a minimum diameter of 0.041 inch onto which is incorporated, along its length, a rigid or semi rigid “V” shape stabilizer, onto which is integrated an eyelet onto which the fishing line is attached, and which serves to maintain the “V” shape of the spinnerbait assembly, resulting in little to no deformation or breakage of the assembly with continued use. The preferred positioning of the stabilizer and its preferred fish attracting head shape weight, hook and fish attracting components configurations allow for increased overall stability of the assembly, including vertical stability when being pulled through water. Due to this increased stability, the flexible spinnerbait assembly also generates, with greater consistency, the frequencies desired to increase fish attraction.

The invention discloses a process for producing polyester electric conduction filter strips. The method comprises the following steps of: purchasing raw materials, checking wires, warping, delivering heads, weaving nets, checking the nets, shaping at one time, cutting the nets, manufacturing ports, checking finished products, packaging and putting in storage. According to the process, warp and weft wires are all Germany high-quality polyester single wires, and the innovative selection and application of black imported polyester electric conduction single wires guarantee the stability and the service life of products. By adjusting the process for producing the polyester electric conduction filter strips, normal production of all processes can be realized, and fabric products are stable in texture, flat in net surface, high in intensity, long in service life and excellent in performance.

A light-shielding agent and a film-forming composition containing it, which prevent separation of formulation surfaces or powder floating phenomenon, which are caused by irradiation by light or ultraviolet light, improve luster of formulation surfaces, maintain external appearance of formulations, and do not impair stability or quality of pharmaceutical preparations, or the like, are provided. The light-shielding agent includes a calcium-containing compound, and the film-forming composition includes the light-shielding agent including the calcium-containing compound and a film-forming base agent. The present invention also provides a formulation and a capsule, which are coated with both or either of the above-mentioned light-shielding agent and/or the above-mentioned film-forming composition.

The present invention is related to a botanical extract, called P Compound, comprises anti-infection activities. The botanical sources, extracting process, formulation, and applications are disclosed within this invention.