37results about How to "Low chemical reactivity" patented technology

Submicron particles of water-insoluble compounds, particularly drugs, are prepared by simultaneously stabilizing microparticulate suspensions of same with surface modifier molecules by rapid expansion into an aqueous medium from a compressed solution of the compound and surface modifiers in a liquefied gas and optionally homogenizing the aqueous suspension thus formed with a high pressure homogenizer.

A template article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material; is provided, together with a semiconductor article including a base substrate including: (i) a base material selected from the group consisting of polycrystalline substrates and amorphous substrates, and (ii) at least one layer of a differing material upon the surface of the base material; and, a buffer material layer upon the base substrate, the buffer material layer characterized by: (a) low chemical reactivity with the base substrate, (b) stability at temperatures up to at least about 800° C. under low vacuum conditions, and (c) a lattice crystal structure adapted for subsequent deposition of a semiconductor material, and, a top-layer of semiconductor material upon the buffer material layer.

The addition of thin coatings (less than and approaching monomolecular coatings) of persistent release materials comprising preferred compounds of the formula:

RELEASE-M(X)_n-1—

RELEASE-M(X)_n-m-1Q_m,

Or

RELEASE-M(OR)_n-1—, wherein

• • RELEASE is a molecular chain of from 4 to 20 atoms in length, preferably from 6 to 16 atoms in length, which molecule has either polar or non-polar properties;
  • M is a metal atom, semiconductor atom, or semimetal atom;
  • X is a halogen or cyano, especially Cl, F, or Br;
  • Q is hydrogen or alkyl group;
  • M is the number Q represents
  • R is hydrogen, alkyl or phenyl, preferably hydrogen or alkyl of 1 to 4 carbon atoms; and
  • N is the valence −1 of M,
  • and n-m-1 is at least 1

provides good release properties. The coated substrates are particularly good for a lithographic method and apparatus for creating ultra-fine (sub-25 nm) patters in a thin film coated on a substrate is provided, in which a mold having at least one protruding feature is pressed into a thin film carried on a substrate. The protruding feature in the mold creates a recess of the thin film. The mold is removed from the film. The thin film then is processed such that the thin film in the recess is removed exposing the underlying substrate. Thus, the patterns in the mold is replaced in the thin film, completing the lithography. The patterns in the thin film will be, in subsequent process, reproduced in the substrate or in another material which is added onto the substrate.

The present invention provides rechargeable electrochemical cells comprising a molten anode, a cathode, and a non-aqueous electrolyte salt, wherein the electrolyte salt is situated between the molten anode and the cathode during the operation of the electrochemical cell, and the molten anode comprises an aluminum material; also provided are batteries comprising a plurality of such rechargeable electrochemical cells and processes for manufacturing such rechargeable electrochemical cells.

Inorganic pigments, having deposited on the pigment surface at least one alkenyl- or alkyl-substituted succinic anhydride and at least one organic polyol, possess improved processibility and dispersibility in thermoplastic materials, and impart improved properties to thermoplastic compositions containing said surface-treated pigments.

The invention relates to the technical field of lithium ion batteries, in particular to an interface layer and a lithium ion battery comprising the interface layer. Lithium halide generated by the in-situ reaction at the interface of a solid electrolyte and a metal lithium negative electrode can optimize the interface contact property and the interface wettability and provide a rapid ion diffusion path. The metal particles generated by the in-situ reaction at the interface of the solid electrolyte and the metal lithium negative electrode can guide the uniform distribution of an electric field, regulate and control the uniform deposition of the metal lithium in the circulation process, and inhibit the formation and growth of lithium dendrites. The lithium ion battery provided by the invention can effectively stabilize the interface between the electrode and the electrolyte, reduces the chemical reaction activity of the metal lithium negative electrode, avoids the side reaction at the interface, and shows higher cycling stability and coulombic efficiency in continuous charge-discharge cycles.

A liquid tank includes: a first container; a second container provided in the first container to contain liquid and gas; a joint which is provided in the first container and discharges the liquid outside the first container; an outlet pipe which connects the joint to the second container; and a remaining indicator window provided to make the interior of the outlet pipe viewable.

A method for controlling microbiological contamination in a heat exchanger while using the heat exchanger to process a food product. The method includes: while processing the food product in the heat exchanger, adding a microbiological control agent to the food product at a first location; and neutralizing at least partially the microbiological control agent by adding a neutralizing agent to the food product at a second location, the second location being downstream from the first location, at least part of the heat exchanger being between the first and second locations, the neutralizing agent being operative for reducing a chemical reactivity of the microbiological control agent in the food product. The microbiological control agent controls the microbiological contamination in the heat exchanger while the food product is processed. In some embodiments, the food product is a milk product.

Disclosed are cover gas compositions comprising fluoroolefins for impeding the oxidation of molten nonferrous metals and alloys, such as magnesium.

The invention provides a secondary battery. The secondary battery comprises a positive electrode, a negative electrode, and an isolating membrane and electrolyte which are arranged between the positive electrode and the negative electrode; the positive electrode comprises a divalent metal ion iron cyanide complex; the secondary battery adopts the divalent metal ion iron cyanide complex as an positive electrode active material; the divalent metal ion iron cyanide complex is of a rhombohedral structure, belongs to the R-3c space group, and uses (Fe(CN)6) as a structural unit so that a three-dimensional frame network with a special pore passage structure is formed. positive ions can be rapidly embedded into and released from pore passages in a three-dimensional frame, and the three-dimensional frame is stable during embedding and releasing of the positive ions; the secondary battery adopting the divalent metal ion iron cyanide complex as the positive electrode active material has the high coulombic efficiency and the long cycle life; the divalent metal ion iron cyanide complex has the low reaction activity and the prepared battery is difficult to explode.

A microvalve having a cast-in-place and lithographically shaped mobile, polymer monolith for fluid flow control in microfluidic devices and method of manufacture. The microvalve contains a porous fluorinated polymer monolithic element whose pores are filled with an electrically insulating, high dielectric strength fluid, typically a perfluorinated liquid. This combination provides a microvalve that combines high dielectric strength with extremely low electrical conductivity. These microvalves have been shown to have resistivities of at least 100 GΩ and are compatible with solvents such as water at a pH between 2.7 and 9.0, 1-1 propanol, acetonitrile, and acetone.

A nano-diamond modified liquid band aid is prepared from raw materials in parts by weight as follows: 15-20 parts of a film forming material, 10-20 parts of ethyl acetate, 40-50 parts of ethanol, 3-5parts of propylene glycol, 2-6 parts of polydimethylsiloxane, 4-7 parts of medical vaseline, 4-8 parts of a cattail spike extract and 2-4 parts of modified nano-diamond, wherein the film forming material, ethyl acetate, ethanol, propylene glycol, polydimethylsiloxane and the medical vaseline are taken as basic raw materials, the cattail spike extract and the modified nano-diamond are taken as active ingredients, and the sum of parts of the basic raw materials and the cattail spike extract by weight is 100. The invention further discloses a preparation method of the nano-diamond modified liquidband aid. Compared with conventional band aids, the liquid band aid is convenient to use, has good antibacterial and anti-inflammatory functions and has no irritation or toxicity to skin, external wounds in any shape and in any position can be more conveniently treated, and the liquid band aid can rapidly form a film and has the efficacy of stopping bleeding, diminishing inflammation, relieving pain and promoting blood circulation to remove blood stasis.

The invention belongs to the technical field of organic membrane materials, and particularly relates to a polyamide composite membrane chlorine-resistant high-flux modification method based on ketone free radicals. According to the polyamide composite membrane, a polyamide active layer is modified in a free radical grafting mode, free radicals are generated by mixing a substrate and an oxidizing agent, the free radicals are ketone free radicals, the substrate is small molecule ketone with the carbon number smaller than or equal to 5, and the oxidizing agent is persulfate. According to the method, ketone free radicals are introduced to amido bonds of polyamide for the first time, due to the fact that the ketone free radicals can effectively occupy reaction active sites of chlorine and polyamide and improve the hydrophilicity of polyamide, the chlorine resistance and permeability of the membrane are improved, and in addition, the modification method is simple and easy to implement, production is easy to expand, and the method has great market prospects.

The invention discloses a method for producing a printed circuit board by using calixarene. The method comprises the following steps of: a) adding the calixarene and an organic solvent into a container with a stirring device separately at normal pressure and temperature, and stirring the calixarene and the organic solvent continuously so as to obtain a calixarene solution; b) adding liquid copper slurry and the calixarene solution to a container with a dispersion device separately at normal pressure and temperature, performing dispersion continuously, filtering out the material so as to obtain a primary printing liquid; c) drilling and cleaning a substrate, and placing the substrate on a screen printing machine; d) applying the obtained primary printing liquid to the screen printing machine and applying the primary printing liquid to the substrate to form a printing liquid layer; and e) baking the obtained substrate in a baking oven and then naturally cooling the substrate so as to obtain the printed circuit board. The method for producing the printed circuit board by using calixarene is friendly to environment, can improve the adhesive force of copper particles on the substrate, and reduces the impedance of a conductive line.