244results about "Nitrile polymer adhesives" patented technology

The invention is based on the discovery that modified calcium carbonates can be used as fillers for the preparation of non-abrasive adhesive formulations that are useful in microelectronic applications. The modified calcium carbonate fillers possess functional groups, which form strong bonds to the thermoset matrix. Invention compositions display excellent rheological properties, in addition to a low coefficient of thermal expansion.

The invention discloses a battery or conductive adhesive applied to a capacitor and an electrode composition; the composition contains the conductive adhesive. According to the percentage of total mass, the conductive adhesive consists of 10-30 percent of matrix and 70-90 percent of solvent; the matrix is a composite, which essentially contains 30-60 percent of electronic conductive polymer and 40-70 percent of ion conductive polymer by mass ratio. The electronic conductive polymer is a homopolymer or copolymer and polymerized by at least one aromatic monomer with a conjugate structure; the ion conductive polymer is a polyether or a homopolymer or copolymer containing dissociative polar groups. Since the adhesive has the performance of electronic or ion conductive, the consumption of conductive agent can be reduced, or the additional conductive agent can not be needed; therefore, specific capacity of the battery and the capacitor can be increased; the contacting resistance among active materials and between the active materials and current collector can be reduced, thus improving chemical performance of the battery and the capacitor.

The invention belongs to the field of lithium ion batteries and relates to an acrylonitrile copolymer adhesive and application thereof in lithium ion batteries. The acrylonitrile copolymer adhesive structurally comprises, by weight, 78-95% of an acrylonitrile unit, 1-10% of an acrylate unit and 2-15% of an acrylamide unit. Acrylate monomers, high-polarity acrylamide monomers or acrylate monomers are added into acrylonitrile monomers serving as a main material to implement copolymerization, so that high adhesive power or intermolecular force of acrylonitrile polymer molecules is kept while a polymer adhesive film is given flexibility, electrolyte affinity and appropriate swelling degree in electrolyte to adapt to periodical volumetric changes of electrode active materials along with embedding/escaping of lithium ions in a charging and discharging process, and energy density and cycle performance of the lithium ion batteries are improved.

Provided is a flame retardant adhesive composition including (A) a halogen-free epoxy resin, (B) a thermoplastic resin and/or a synthetic rubber, (C) a curing agent, (D) a nitrogen-containing polyphosphate compound, and (E) a curing accelerator. Also provided are an adhesive sheet having a layer including the above composition, and a protective layer for covering the layer including the composition; a coverlay film having an electrically insulating film, and a layer including the above composition provided on top of the film; a flexible copper-clad laminate having an electrically insulating film, a layer including the above composition provided on top of the film, and copper foil; and a method of bonding two substrates, including the steps of sandwiching the above adhesive sheet between two substrates, and curing the adhesive sheet. Further provided are a process for producing the adhesive sheet, a process for producing the coverlay film, and a process for producing the flexible copper-clad laminate. The halogen-free adhesive composition yields a cured product, on curing, that exhibits excellent flame retardancy and anti-migration properties. The composition can be used for producing an adhesive sheet, a coverlay film, and a flexible copper-clad laminate. The adhesive sheet can be used for a method of bonding two substrates.

The invention relates to an aqueous binder used for lithium ion batteries, positive and negative electrode plates and a coating membrane and belongs to the field of lithium ion battery manufacturing. The aqueous binder used for the lithium ion batteries comprises acrylic soap-free copolymerization aqueous emulsion and modifying agents, and the weight ratio of the acrylic soap-free copolymerization aqueous emulsion to the modifying agents is 100 to 5-50, wherein the modifying agents are selected from at least one of the compounds with the structural formulae being NR7R8CH2CH2CN or R9-(OCH2CH2)n-OCH2CH2CN or R10CONR11R12. The aqueous binder is suitable for modified coating of polyolefin diaphragms of the lithium ion batteries and high-temperature fast coating of the electrode plates, and the performance and the production efficiency of the lithium ion batteries can be improved.

There is provided an adhesive sheet that has initial adhesiveness, can realize bonding between metals, between a metal and an organic material, and between organic materials, and can retain an excellent adhesion strength without undergoing a temperature change. The adhesive sheet comprises a first release paper, an adhesive layer, and a second release paper stacked in that order, the adhesive layer containing an adhesive, the adhesive containing at least an acrylic resin, an epoxy resin, and a curing agent, the content of the epoxy resin being 175 to 300 parts by weight per 100 parts by weight of the acrylic resin.

Adhesive composition, including a mixture of about 1 percent to about 35 percent by weight of chlorinated polymer, about 1 percent to about 35 percent by weight of a nitrile elastomer, a rubber-modified acrylonitrile copolymer, or mixtures thereof, and about 25 percent to about 90 percent by weight of an alkyl acrylate or methacrylate monomer.

Provided is a flame retardant adhesive composition including (A) a halogen-free epoxy resin, (B) a thermoplastic resin and/or a synthetic rubber, (C) a curing agent, (D) a phytate compound, and (E) a curing accelerator. Also provided are an adhesive sheet having a layer including the above composition, and a protective layer for covering the layer including the composition; a coverlay film having an electrically insulating film, and a layer including the above composition provided on top of the film; and a flexible copper-clad laminate having an electrically insulating film, a layer including the above composition provided on top of the film, and copper foil. Further provided are a process for producing the adhesive sheet, a process for producing the coverlay film, and a process for producing the flexible copper-clad laminate. The halogen-free adhesive composition yields a cured product, on curing, that exhibits excellent flame retardancy and electrical characteristics (anti-migration properties). The composition can be used for producing an adhesive sheet, a coverlay film, and a flexible copper-clad laminate.

The implement method of the present invention relates to a half thermosetting anisotropism conductive membrane composition, including thermoplastic resin containing about 150,000 to 600,000 of weight-average molecular weight, thermosetting material containing about 100 to 10,000 weight-average molecular weight and acrylic ester or methacrylic acid ester functional group, organic peroxide, silicane coupling agent and conductive particle.

The invention discloses a water-soluble adhesive for a lithium ion battery, a preparation method for the water-soluble adhesive, an electrode sheet and a battery. The invention is to solve the technical problems of improving the high-temperature storage and high-temperature cycle performance of the lithium ion battery and reducing the cost. The water-soluble adhesive for the lithium ion battery provided by the invention comprises, in percentages by mass, 5-75% of a monomer as shown in a formula 1 which is described in the specification, 1-35% of a monomer as shown in a formula 2 which is described in the specification and 5-65% of a monomer as shown in a formula 3 which is described in the specification, wherein the monomers constitute a multipolymer. The method provided by the invention comprises the following steps: mixing the monomer as shown in the formula 1, the monomer as shown in the formula 2 and the monomer as shown in the formula 3 so as to obtain a solution, adding an initiator so as to obtain a polymerization product, and carrying out neutralizing with an aqueous alkali solution so as to obtain the water-soluble adhesive for the lithium ion battery. The invention relates to a lithium ion battery electrode sheet, a lithium ion battery and a lithium ion battery water-soluble adhesive. Compared with the prior art, the water-soluble adhesive provided by the invention has good dispersing performance and slurry stability, facilitates improving the bonding strength, is endowed with certain high-temperature resistance due to a low electrolyte swelling characteristic, and is simple in preparation method and low in cost.

An adhesive tape electrically connecting conductive members contains a resin, a solder powder and a curing agent having flux activity, wherein the solder powder and the curing agent having flux activity are contained in the resin.

A preparation process of nano-conductive carbon primer for precoating aluminum foil and a coating method thereof are provided. The preparation process comprises the following steps: i) preparing aqueous or oily primer, wherein the aqueous primer comprises 1 part of aqueous solvent, 0.05-0.6 parts of adhesive agent A, and 0.05-0.6 parts of powder nano-conductive composite conductive agent, and the oily primer comprises 1 part of oily solvent, 0.03-0.6 parts of adhesive agent B, and 0.03-0.6 parts of powder nano-conductive composite conductive agent; and ii) ultrasonically dispersing. The battery coated with the primer has low internal resistance, strong adhesive force, good conductive property, and high compacted density.

This invention is a film adhesive prepared from an adhesive composition comprising a polymer system, a film forming rubber compound, and curing agents for the polymeric system. The polymer system comprises a base polymer and electron donor and electron acceptor functionality.

The invention relates to the field of adhesives, in particular to a preparation method for a pressure-sensitive adhesive. The preparation method for the pressure-sensitive adhesive comprises the following steps of: mixing acrylic acid soft monomer, acrylic acid functional monomer, 40-70 percent of initiator and 50-70 percent of solvent into mixed solution A; mixing the remaining initiator and hard monomer to form mixed solution B; performing heating reaction on 40 percent of mixed solution A under the protection of nitrogen gas for over 1 hour; adding the remaining mixed solution A into the reacted mixed solution A; continuously reacting for more than half an hour at the reaction temperature of 60-80 DEG C; adding the mixed solution B into the mixed solution A, then reacting for over 1 hour and keeping the reaction temperature at 80-84 DEG C; and then cooling reactants to 40 DEG C, adding the remaining solvent, abietin resin and cross-linking agent, stirring for half an hour and filtering slurry. The adhesive prepared by the invention has no volatile harmful substances, has high viscosity, and is economical, practical and more environmentally-friendly.

Cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, a hydrogenated anhydride and optionally a benzonitrile, are provided. Cured products of the inventive cyanoacrylate compositions demonstrate improved heat resistance without compromising fixture time, stability or color.

Provided is a functional fiber and a fiber aggregate for realizing various functions, an adhesive for easily bonding electronic components, and a method for manufacturing the same. Particularly, a fiber extended in a length direction includes a carrier polymer and a plurality of functional particles, wherein the plurality of functional particles are embedded in the carrier polymer and physically fixed to the carrier polymer to be integrated.

An adhesive sheet made of an acrylic adhesive composition comprising (A) an acrylic polymer containing carboxyl groups and having a Tg of 5-30° C., (B) a resol phenolic resin, (C) an epoxy resin, and (D) a curing accelerator has improved heat resistance, processing and handling as well as good adhesion, and is suited for use in the manufacture of FPC.

The invention relates to an adhesive for a packaging paper material. The adhesive is characterized by being prepared from the following raw materials in parts by weight: 8-10 parts of polyvinyl alcohol, 3-4 parts of acrylonitrile, 6-8 parts of starch, 2-3 parts of silane coupling agent KH550, 1-2 parts of acrylamide, 3-4 parts of borax, 3-4 parts of hydroxyethyl cellulose, 1-2 parts of water-soluble melamine formaldehyde resin, 1-2 parts of morpholine, 9-11 parts of ethylene-vinyl acetate copolymer emulsion, 2-3 parts of sodium hydroxide and 120-125 parts of water. The adhesive for the packaging paper material has the advantages that the adhesive property is excellent, the mechanical strength is good after the adhesive is applied to paper packaging boxes, and the adhesive property is still good after the adhesive is subjected to a destructive test.

The invention belongs to the technical field of lithium ion batteries, and in particular discloses a battery aqueous adhesive. The adhesive comprises branched polyacrylonitrile, wherein the branched polyacrylonitrile consists of a structural unit A and a structural unit B; the unit A has a general formula which is shown in the specifications, and the unit B has a general formula which is shown inthe specifications; and R1 and R2 are one independently selected from C1 to C4 alkyl groups respectively. The invention also discloses an electrode and a battery using the adhesive. The battery aqueous adhesive provided by the invention has high adhesion and stable performance and cannot be degraded or stripped along with charge and discharge, and the capacity cannot be reduced, so that the service life of the battery can be effectively prolonged. The adhesive can also replenish lithium ions to a positive electrode, so that the utilization rate of the lithium ions is improved. The adhesive isparticularly suitable for positive aqueous slurry.