224 results about "Polymer bonding" patented technology

The positive electrode active material layer includes a plurality of particles of a positive electrode active material and a reaction mixture where reduced graphene oxide is bonded to a polymer having a functional group as a side chain. The reduced graphene oxide has a sheet-like shape and high conductivity and thus functions as a conductive additive by being in contact with the plurality of particles of the positive electrode active material. The reaction mixture serves as an excellent binder since the reduced graphene oxide is bonded to the polymer. Therefore, even a small amount of the reaction mixture where the reduced graphene oxide is covalently bonded to the polymer excellently serves as a conductive additive and a binder.

A method of increasing the solubility and/or dispersibility of a perylene dye in a liquid medium. The method comprises binding the perylene dye to a polymer which is soluble in the liquid medium. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

An assembly for use in or on a tire. The assembly comprises an electronic device having a body and an adhesive coating on at least the body of the electronic device. The body is at least partially made of a plastic material or a fiber reinforced plastic (FRP). The adhesive coating comprises an imide-based adhesive. The adhesive coating may have a polymer bonding group comprising at least one of natural rubber, butyl rubber, a chlorinated elastomer, polybutadiene, synthetic polyisoprene, or styrene-butadiene rubber or a combination thereof. In one embodiment, the assembly further comprises a first elastomeric layer and a second elastomeric layer. The adhesive coating secures the body to the first and the second elastomeric layers. The first and second elastomeric layers may comprise a butyl-containing compound or natural rubber compound. In one embodiment, the electronic device is a radio frequency identification tag having the body and an antenna.

An inkjet head having an ink flow path communicated with an ink chamber to an inkjet nozzle and having an orifice plate to which the nozzle is formed. An ink-philic layer is formed on the surface of the ink flow path, and an ink repellent layer is formed on the surface of the orifice plate where the nozzle is formed. The ink-philic layer is made of amorphous silica or inorganic polymer of colloidal silica bonded with a polymer of (SiOR), and the ink repellent layer contains a compound having perfluoropolyether chain and alkoxysilane residue as a terminal.

Novel uses and methods of use for inorganic and macroreticulate polymer bonding to metals to control moisture and oxygen in OLED, and other like devices, are provided. Materials having color change capacity are also provided for the removal of moisture from an OLED, where the material changes color upon reaching its capacity and thereby signals the user that the OLED is no longer protected from moisture damage.

The invention relates to the technical field of lithium ion batteries, in particular to a lithium ion battery with good safety performance, overcharge resistance and mechanical properties. The lithium ion battery comprises a positive electrode plate, a negative electrode plate, a diaphragm between the positive electrode plate and the negative electrode plate, and an electrolyte, wherein the diaphragm comprises a porous film base material and a ceramic material layer which is coated on the surface of the porous film base material; the positive electrode plate comprises a positive current collector, a positive active material layer coated on the surface of the positive current collector, and a positive polymer bonding layer coated on the positive active material layer and positioned on the surface layer; and the negative electrode plate comprises a negative current collector, a negative active material layer coated on the surface of the negative current collector, and a negative polymer bonding layer coated on the negative active material layer and positioned on the surface layer. Compared with the prior art, the lithium ion battery has good safety performance, overcharge resistance and mechanical properties.

The invention broadly relates to cyclic olefin polymer bonding compositions and release compositions, to be used independently or together, that enable thin wafer handling during microelectronics manufacturing, especially during a full-wafer mechanical debonding process. The release compositions comprise compositions made from siloxane polymers and copolymers blended in a polar solvent, and that are stable at room temperature for longer than one month. The cyclic olefin polymer bonding compositions provide high thermal stability, can be bonded to fully-treated carrier wafers, can be mechanically or laser debonded after high-temperature heat treatment, and are easily removed with an industrially-acceptable solvent. Wafers bonded according to the invention demonstrate lower overall post-grind stack TTV compared to other commercial bonding materials and can survive 200° C. PECVD processing.

The present invention relates to a method for bonding two surfaces to one another. The invention particularly pertains to the use of such method in which one of the surfaces is a polymeric plastic (and more preferably a polymeric thermoplastic (especially poly-(methyl methacrylate) (“PMMA”) or cyclic olefin copolymer (“COC”)). More particularly, the invention relates to treating at least one of the contacting surfaces with UV in the presence of oxygen to thereby generate ozone (O₃) and atomic oxygen under conditions of temperature below that of the glass transition temperature of the polymeric plastic. The UV/O₃-mediated bonding results in high bond strength and zero-deformation method. This bonding method can be applied to micro/nano-scale polymer devices, and particularly to microfluidic devices, for a low cost, high throughput, high yield advantage.

The invention provides a durable, lubricious coating for a medical article that can be prepared from a first polymer that is synthetic, soluble in a polar liquid, and having first reactive groups, and a second polymer that is synthetic, hydrophilic, and that includes second reactive groups. The first reactive groups and a portion of the second reactive groups react to bond the first polymer to the second polymer. A portion of the second reactive groups remains unbonded which, upon neutralization, provide lubricious properties to the coating. In some aspects the coating is formed using a crosslinking agent having latent reactive groups. The coatings provide particularly long dry out times and are very useful for catheterization processes. In addition, the coatings can be subject to sterilization with ethylene oxide and retain very good durable and lubricious properties.

A self-moisturizing polymer electrolyte membrane (PEM) composition, a membrane-electrode assembly, and a fuel cell. The PEM composition comprises (a) a proton-conducting polymer containing a detachable hydrogen ion and a counter-ion bonded to the polymer; and (b) a deliquescent material for keeping the membrane wet and for detaching the hydrogen ion to facilitate proton transport in the membrane. Alternatively, the deliquescent material may be strategically located on the gas flow field channels, gas-diffusion electrode or backing layers, and/or electro-catalyst layers. A preferred PEM polymer is poly(perfluoro sulfonic acid). This self-moisturizing PEM obviates the need to have a pre-humidifying structure or a complex flow field design in a fuel cell.

The invention relates to a nano-gold catalyst and a preparation method thereof. The preparation method of the catalyst comprises the following steps: reducing an acid containing gold into nano-Au; mixing the nanoAu with a polymer bonding agent, adding a silicon source and an aluminum source for reacting to obtain a catalyst precursor; and adding a template agent into the catalyst precursor for performing a hydrothermal reaction to obtain the nano-gold catalyst with a core-shell structure, wherein the core is the nano-Au, and the shell is an A type, X type, Y type or ZSM-5 type silicon-aluminum mesoporous molecular sieve of one or more of compounds. The catalyst has high thermal stability and high catalytic activity.

The invention relates to a lithium ion battery core and a preparation method thereof, and a lithium ion battery. The preparation method comprises: assembling a positive electrode sheet, a negative electrode sheet and a separation membrane, and carrying out hot pressing at least twice to prepare the battery core, wherein the separation membrane comprises a base membrane and a polymer bonding substance coated on the base membrane. According to the present invention, the lithium ion battery core is prepared through the multiple hot pressing, wherein the first hot pressing provides the pre-pressing effect so as to achieve the primary bonding of the separation membrane and the electrode sheet and expose the gap at the bonding interface position, and the second hot pressing provides the supplementing effect, such that the polymer bonding substance can fully fill the gap generated by the pre-pressing, and the bonding effect of the bonding interface can be enhanced; and with the at least two hot pressing, the bonding effect at the bonding interface can be improved in a targeted manner, and the clogging of the separation membrane due to the infiltrating of the molten polymer bonding substance into the pores of the separation membrane can be avoided.

The invention discloses a method to make fire retardant hard foam polyurethane composite plates and fire protection strips. Firstly, fire retardant polymeric sheets are made. While a polyurethane foaming machine is used to foam polyisocyanate and flame retardant premixed polyether polyol into hard foam polyurethane plates, the fire retardant polymeric sheets are compounded onto both sides of the hard foam polyurethane plates to make the fire retardant hard foam polyurethane composite plates. The method to make the fire protection strips is that polymer bonding adhesive cement is used to stick the fire retardant hard foam polyurethane composite plates on base wall; fire retardant polyurethane leveling slurry is applied on the surface layer of the fire retardant hard foam polyurethane composite plates for leveling; after the leveling layer is dried, a fire retardant finishing adhesive cement layer is applied on the leveling layer; a piece of inorganic grid cloth is laid on the fire retardant finishing adhesive cement layer; subsequently, the fire retardant finishing adhesive cement is used for leveling. The invention can effectively retard flame; the process is simple; the product is used conveniently. The fire protection strips can bring fireproof function to the complete wall with excellent fireproof effect.

The invention relates to a fabricating method and a construction method of a seamless composite board integrating insulation, decoration and waterproofing. The technical scheme is that the fabricating method comprises the following steps of: (1) prefabricating a polymer cement adhesive for later use, selecting a glass fiber mesh, selecting an insulation board with a certain thickness and size for spraying a surfactant on two sides of the board for later use, selecting a veneer for later use and prefabricating a polymer waterproof bonding adhesive for later use; and (2) introducing the insulation board into a production line, coating the polymer cement adhesive on the insulation board, pressing the glass fiber mesh in the insulation board, and curing, dehydrating and drying by using a device transmission system for curing the polymer bonding adhesive to complete the fabrication. The methods have the advantages of greatly improving the waterproofing, anti-cracking and anti-impact performance of board seams, realizing the continuousness and integrity of a decoration layer of an insulation system of the seamless integrated composite board by the pasting of the polymer waterproofing bonding adhesive and pressing and realizing the insulation, decoration and waterproofing of the whole system.

A moisture-curable, graft-modified resin composition includes at least one thermoplastic polymer (i) and at least one silyl group containing polymer (ii) possessing at least one hydrolyzable silyl group that is bonded to the polymer through a linking group containing at least one heteroatom selected from the group consisting of oxygen and nitrogen, each of polymers (i) and (ii) having grafted thereto at least one same or different silane (iii) which, prior to being grafted, possesses at least one reactive carbon-carbon unsaturated bond.

The invention discloses a method for sintering anisotropic permanent ferrite by binding molding of polymer, comprising the following preparing steps: fully mixing ferrite powder with polymer binder accounting for 0.1-3.0% of the total weight of raw materials to obtain molding powder; then heating the molding material and a mould to 60-150 deg.C, placing the molding powder in the mould and making pressure molding under external oriented magnetic field so as to obtain blanks; finally sintering the blanks at the stable temperature of 1200-1280 deg.C to make it. The invention is low-cost, and the obtained ferrite has high magnetic property and has no pollution to the environment and has no effect on the health of producing personnel.