19results about "Unsaturated ether polymer adhesives" patented technology

The embodiment of the invention provides a binder, a positive plate and a battery, the binder comprises a nitrile structural unit, an ether structural unit, a nitrogen heterocyclic structural unit and a sulfonic acid structural unit, and the swelling degree of the binder is 20-40%. According to the present invention, the adhesion, the flexibility, the swelling resistance and other properties of the binder can be improved, the flexibility of the electrode plate using the binder can be improved, and the electrochemical properties such as the improvement of the first efficiency and the cycle life of the battery can be considered.

The invention discloses a binder for a lithium battery diaphragm cold pressing process and a preparation method thereof, and relates to the technical field of lithium battery diaphragm binders, the binder is prepared from the following components: an acid monomer, an amide monomer, a nitrile monomer, an acrylate monomer, an ether bond-containing polyfunctional group monomer, a long side chain hydrocarbon chain monomer, a neutralizer and an initiator. The preparation method comprises the following steps: mixing the binder components, and adding the binder components into deionized water to form a mixed solution; adding an initiator under the protection of nitrogen, and heating for reaction; and after the reaction is finished, adding a neutralizer to adjust the pH value, diluting and vacuumizing to remove residual monomers. The ether bond-containing polyfunctional group monomer is introduced to form a three-dimensional network structure, so that cohesion is reduced, and a dry film is soft and adapts to a 25 DEG C cold pressing process; and meanwhile, a long-side-chain hydrocarbon chain monomer is introduced, so that the compatibility and wettability with the PE / PP diaphragm are improved, and low-energy-consumption cold pressing bonding is realized.

The invention provides a resin composition for a cover film and the cover film. The resin composition for the cover film comprises the following components in parts by weight: 40-50 parts of phenoxy resin, 5-10 parts of polyvinyl butyral resin, 15-20 parts of epoxy resin, 5-10 parts of methacrylate-butadiene-styrene core-shell rubber and 5-20 parts of a curing agent, wherein the curing agent comprises an isocyanate curing agent and an amine curing agent. The covering film comprises a base film, an adhesive layer and a protective layer which are sequentially arranged in a stacked mode. The adhesive layer is prepared from the resin composition for the cover film. By designing the specific composition of the resin composition, the resin composition with high glass transition temperature, excellent processability and high reliability is obtained, the prepared cover film has good heat resistance, and the problems of curling of the cover film and adhesive falling during paper tearing are solved.

The application discloses a kind of binder for lithium battery separator cold pressing process and preparation method thereof, it is related to lithium battery separator binder technical field, binder includes the following component is made: acid monomer, amide monomer, nitrile monomer, acrylic ester monomer, ether bond containing multifunctional monomer, long side chain hydrocarbon chain monomer, neutralizing agent, initiator.Preparation method includes the following steps: after mixing binder component, it is formed into mixed solution in deionized water;Nitrogen protection is added to initiator, heating reaction;After reaction is completed, neutralizing agent is added to adjust pH value, dilution and vacuum removal residual monomer are obtained after.The application forms three-dimensional network structure by introducing ether bond containing multifunctional monomer, reduces cohesion, makes dry film soft, adapts 25 DEG C cold pressing process;While introducing long side chain hydrocarbon chain monomer improves compatibility and wettability with PE / PP separator, realizes low energy consumption cold pressing bonding.

The present invention is a curable perfluoropolyether pressure-sensitive adhesive composition containing: (A) 100 parts by mass of a linear perfluoropolyether compound having at least two alkenyl groups in one molecule and having a perfluoropolyether structure containing a repeating unit represented by-CaF2aO-in the main chain (where a represents an integer of 1-6); (B) an organosilicon compound having at least two hydrogen atoms bonded to a silicon atom in one molecule, the organosilicon compound being a curing effective amount; (C) a hydrosilylation reaction catalyst in a catalytic amount; and (D) an antistatic agent in an effective amount. As a result, it is possible to provide a curable perfluoropolyether pressure-sensitive adhesive composition, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape using a cured product of the composition. The curable perfluoropolyether pressure-sensitive adhesive composition forms a cured product which has excellent heat resistance, weather resistance, hydrophobicity, oleophobicity, chemical resistance, solvent resistance and the like, and particularly can prevent static electricity when an adherend attached to the pressure-sensitive adhesive or an adhesive tape with the pressure-sensitive adhesive is peeled off.

The invention provides a hydroxyl modified binder, a preparation method thereof and a secondary battery. The hydroxyl modified binder is a copolymer, monomers forming the copolymer comprise a first monomer and a second monomer, the first monomer comprises at least one of acrylic acid, acrylamide or acrylonitrile, and the second monomer comprises a compound as shown in a formula I; the first monomer and the second monomer respectively form a first monomer unit and a second monomer unit of the copolymer, based on the mass of the copolymer, the mass percentage content of the first monomer unit is A%, A is more than or equal to 5 and less than or equal to 60, the mass percentage content of the second monomer unit is B%, and B is more than or equal to 40 and less than or equal to 95. The hydroxyl modified binder has a good self-repairing characteristic, and the hydroxyl modified binder is applied to a negative pole piece of a secondary battery, so that the cyclic expansion performance and low-voltage storage safety performance of the secondary battery are improved.

The application provides a kind of binder, positive plate and battery, the binder includes nitrile structural unit, ether structural unit, nitrogen heterocyclic structural unit and sulfonic acid structural unit, the swelling degree of the binder is 20%~40%.The application can improve the adhesion, flexibility and anti-swelling performance of the binder, improve the flexibility of the electrode sheet using the binder, and improve the electrochemical performance of the battery, such as initial efficiency and cycle life.

The invention relates to a curable composition comprising one or more copolymer A formed by copolymerization of a monomer mixture, the monomer mixture comprising one or more monomers from the class of butenolides, and one or more vinyl functional monomers; and one or more polyamine substances B, the polyamine substance(s) B comprising at least two primary amino groups. The Invention further relates to the cured composition obtained from the curable composition, and the compositions as part of coated substrates and stacks of substrates. The invention further relates to a copolymer A used in the compositions and its method of manufacture, as well as the use of the curable composition as coating material, sealant material or adhesive material.

Provided is a pressure-sensitive adhesive sheet that has a high bio content while exhibiting good holding power at high temperatures, good adhesion at low temperatures, and good adhesion to low-polarity adherends. [Solution] The adhesive contains a polymer (X1) containing 48 mass% or more of structural units derived from at least one monomer (Y) selected from the group consisting of a monomer (A1) represented by the following general formula (1) and a monomer (B1) represented by the following general formula (2), and has a tan δ(23°C) of 0.8 to 1.3, calculated by G"(23°C) / G'(23°C), where G'(23°C) is the storage modulus at 23°C and G"(23°C) is the loss modulus. JPEG2023036859000011.jpg4066 In formula (1), R 1 represents H or CH3, and R 2 Ga-C n H 2n+1 and n represents an integer of 7 to 14. In formula (2), R 3 is -C(=O)C m H 2m+1 and m represents an integer of 7 to 13.

The pressure-sensitive adhesive film of the present invention comprises a thermoplastic resin, wherein a shear storage elastic modulus at 85°C is 0.06 × 106 Pa or more and 1.00 × 106 Pa or less, the pressure-sensitive adhesive film comprises no plasticizer or comprises less than 20 parts by mass of a plasticizer based on 100 parts by mass of the thermoplastic resin, and a gel fraction is 15% or less. The laminate of the present invention comprises the pressure-sensitive adhesive film of the present invention, a first organic material substrate, and at least one base material of a second organic material substrate and an inorganic material substrate. The liquid crystal display of the present invention and the laminated glass of the present invention each comprise the laminate of the present invention. The present invention can provide a pressure-sensitive adhesive film excellent in level-difference conformability, bleed performance and recyclability, a laminate comprising the pressure-sensitive adhesive film, and a liquid crystal display and a laminated glass each comprising the laminate.

The invention discloses a manufacturing method of a high-frequency aluminum-lined copper-clad plate, which belongs to the technical field of high-frequency heat dissipation and comprises a process of forming a bonding sheet and a process of covering an aluminum plate with a copper foil through the bonding sheet. Wherein glue thermoplastic resin composition adopted in the step of forming the bonding sheet comprises the following components in parts by weight: 25-70 parts of polytetrafluoroethylene emulsion, 20-35 parts of perfluoroalkoxy vinyl ether polymer, 5-50 parts of inorganic filler, 1-3 parts of coupling agent and 3-5 parts of pH regulator. The high-frequency lining aluminum plate prepared by the invention has the advantages of excellent heat resistance, low dielectric property, low hygroscopicity, good heat-conducting property and high peel strength, and is very suitable for the application field of high-frequency heat dissipation.

The present invention discloses a water-based binder, its preparation method, and application. The binder is obtained by copolymerizing a first monomer, a second monomer, and a third monomer; wherein the first monomer is a compound having the structural formula shown in Formula I; the second monomer is 1,3-butadiene; and the third monomer has the structural formula shown in Formula II, wherein R1 is H or a methyl group, R2 is a carboxyl group or an amino group, and X is a segment between the linking group R2 and the vinyl group. The water-based binder has high electrical conductivity and excellent bonding ability, can effectively suppress electrode expansion, and imparts excellent cycle efficiency and stability to secondary batteries.

The invention relates to a cationically curable composition with at least one cationically polymerizable component, a first photoinitiator releasing an acid when irradiated with actinic radiation of a first wavelength λ1, and a second photoinitiator releasing an acid when irradiated with actinic radiation of a second wavelength λ2, wherein the second wavelength λ2 is shorter than the first wavelength λ1, and wherein the second photoinitiator, after irradiation of the composition with actinic radiation of the first wavelength λ1, shows an absorption of actinic radiation of the second wavelength λ2 in the composition that is sufficient to activate the second photoinitiator and fix the composition. Furthermore, a method is described for the joining, casting, molding, sealing and / or coating of substrates using the cationically curable composition.

[Problem] Provided is a cell-adhesive composition including an oxyethylene chain-containing polymer having excellent biocompatibility and excellent reactivity. [Solution] A cell-adhesive composition according to the present invention includes an oxyethylene chain-containing polymer represented by the following general formula (1): (wherein, in the general formula (1), R1 is -(CH2)p-SH, -(CH2)p-N3, -(CH2)p-NH2, or -(CH2)p-COOH, and p is an integer of 1 to 5; R2 to R4 are each independently hydrogen or a C1-10 alkyl group; R5 is a C1-10 alkyl group; R6 is hydrogen or a C1-5 alkyl group; R7 is a C1-10 alkyl group; n is an integer of 5 to 1000; m is an integer of 1 to 10; and q is an integer of 0 to 5).

Provided are an adhesive composition having excellent adhesive force adjustment effect, and a laminated film using the same as an adhesive layer and suitable for use as a surface protection film. Specifically, an adhesive composition comprising: a perfluoropolyether compound (A) having a poly(perfluoroalkylene ether) chain (a1), and an adhesive (B).

The invention relates to a disassembly composition comprising: - one or more organic carbonates selected from dialkyl carbonates and alkylene carbonates, - an aqueous solution of hydrogen peroxide (H₂O₂), - one or more organic acids selected from monocarboxylic acids comprising at least 10 carbon atoms and polycarboxylic acids, and - one or more gelling agents. The invention also relates to the use of this composition for disassembling a structure comprising at least two elements joined together by means of an adhesive, as well as to a method for disassembling such a structure. No figure.

The present invention is a curable perfluoropolyether adhesive composition including: (A) a linear perfluoropolyether compound having at least two alkenyl groups per molecule and having a perfluoropolyether structure containing a repeating unit represented by -CaF2aO- in a main chain, wherein "a" represents an integer of 1 to 6: 100 parts by mass; (B) an organosilicon compound having at least two hydrogen atoms each bonded to a silicon atom per molecule: an effective curing amount; (C) a hydrosilylation reaction catalyst: a catalytic amount; and (D) an antistatic agent: an effective amount. Thus, the present invention provides: a curable perfluoropolyether adhesive composition that forms a cured material having excellent heat resistance, weather resistance, water repellency, oil repellency, chemical resistance, solvent resistance, etc., particularly an adhesive capable of preventing static charge during peeling off an adherend attached to the adhesive or an adhesive-backed tape; and an adhesive and an adhesive tape using a cured material thereof.

The invention discloses a mica plate bonding double-sided adhesive tape and a preparation method and application thereof.The mica plate bonding double-sided adhesive tape comprises a base material and an adhesive coating the two faces of the base material, and the adhesive comprises, by mass, 50-60 parts of matrix resin; 8 to 18 parts of tackifying resin; 30 to 40 parts of a solvent; 1-2 parts of a cross-linking agent; 0.5-1 part of a curing agent; and 0.1 to 0.5 part of a silane coupling agent. According to the mica plate bonding double-sided adhesive tape disclosed by the invention, a chemical anchoring structure is formed by the silane coupling agent and the lamellar cleavage surface of the mica plate, and a multiple crosslinking system is formed in the adhesive, so that the adhesive has high cohesion while having good flowability, and the adhesive is bonded between the mica plate and a battery pack inner shell (metal plate, metal plate, metal plate and metal plate). The thermal runaway protection material has the advantages that the shearing force between the thermal runaway protection material (such as a steel plate) can reach 0.56 MPa, and the thermal runaway protection material also has excellent performance in different battery working environments, so that the thermal runaway protection effect of the battery is ensured.

The application discloses a kind of fast wet state bonding formaldehyde-free adhesive and its preparation method and application, belong to high molecular adhesive preparation technical field.The above-mentioned fast wet state bonding formaldehyde-free adhesive is prepared from the following weight parts components: resin matrix 15-30 parts, polar aprotic solvent 70-85 parts, multi-functionality epoxy crosslinking agent 0.75-6 parts;The resin matrix is the molecular weight 200 kDa above olefin-maleic anhydride alternating copolymer;The polar aprotic solvent is dimethyl sulfoxide or sulfolane;The multi-functionality epoxy crosslinking agent is 4,4'-diamino diphenyl methane tetraglycidyl amine, isocyanuric acid triglycidyl ester, triglycidyl amine, epoxy soybean oil or epoxy castor oil.The adhesive of the application utilizes specific solvent-resin system, realizes fast, strong and tough bonding in humid, underwater and even various liquid environments by the mechanism of pre-crosslinking in good solvent and fast solvent exchange in poor solvent.