106 results about "Cationic polymerization" patented technology

The invention relates to a method for preparing a solid polymer electrolyte by UV photo-initiated tandem cationic polymerization. The method comprises the following steps: mixing a free radical polymerization monomer, a cationic polymerization monomer, an initiator and a lithium salt, carrying out light free radical polymerization under ultraviolet irradiation to obtain a free radical polymerization prepolymer, carrying out extrusion primary shaping on the free radical polymerization prepolymer, and carrying out series cationic polymerization to prepare the solid electrolyte. The solid electrolyte has the characteristics of environment friendliness, good stability, safety in use and difficulty in liquid leakage, does not use redundant monomers and solvents, and can realize rapid and batch production of the solid electrolyte.

The present invention provides a method for preparing a semi-solid-state battery and its application. The preparation method comprises the following steps: (1) injecting a polymerizing agent into an assembled battery, aging the battery, and then injecting an electrolyte to obtain a battery that has been injected; (2) allowing the battery that has been injected in step (1) to stand for a gelation reaction, and after the gelation reaction is completed, sequentially performing formation, aging, and volume separation on the battery to obtain the semi-solid-state battery; wherein the polymerizing agent in step (1) includes a solvent with a cationic polymerization function and / or a gelling factor with a cationic polymerization function. The present invention uses an in-situ polymerization method to prepare a semi-solid-state battery. After mixing the polymerizing agent and the liquid electrolyte, the polymerizing agent contains a solvent with a cationic polymerization function and / or a gelling factor with a cationic polymerization function, and a gelation polymerization reaction is initiated in the liquid electrolyte, thereby obtaining a semi-solid-state battery with low impedance, high energy density, and high safety performance.

The invention discloses cationic polymerization modified pure monomer resin and a preparation method and application thereof.The preparation method of the cationic polymerization modified pure monomer resin adopts a micro-flow field technology and comprises the following steps that a mixed monomer phase and a catalytic solvent phase are prepared and then pumped into a reactor according to the proportion for a reaction; a material receiving container is connected in series behind the reactor and is used for centralized post-treatment of cached materials, and a high-performance modified pure monomer resin product is obtained through a series of post-treatment. The modified pure monomer resin is prepared by using a micro-flow field technology cationic polymerization method, so that the reaction safety is improved, the reaction time is greatly shortened, the production efficiency is improved, meanwhile, the molecular weight distribution of the resin can be reduced, the softening point range is accurately controlled, the product batch is stable, the occupied area of equipment is small, the construction cost is saved, and the workshop utilization rate is improved.

This invention provides a polymer solid electrolyte monomer and its preparation method, as well as a secondary battery. The polymer solid electrolyte monomer provided by this invention has the structure shown in Formulas 1-4. The secondary battery provided by this invention introduces the polymer solid electrolyte monomer and a certain functional material solution, both of which are used on the positive electrode side. Simultaneously, an acrylate monomer is introduced on the negative electrode side. After battery assembly, heat treatment is performed to initiate gradient in-situ polymerization of the precursors on both the positive and negative electrode sides. Specifically, cationic polymerization initiates mild polymerization on the positive electrode side, free radical polymerization initiates high polymerization on the negative electrode side, and the two monomers interpenetrate at the separator to complete cross-linking copolymerization, thereby forming a gradient polymerization system with increasing polymerization degree from the positive to the negative electrode. The in-situ solid battery prepared using this method has lower internal resistance and faster Li + This improves the electrochemical performance of the battery by creating a transmission channel.

The invention belongs to the field of initiators, and particularly relates to a single-component initiator as well as a preparation method and application thereof. The single-component initiator provided by the invention can be cracked to generate free radicals and protonic acid at the same time under 365 nm / 395 nm UV-LED illumination, acrylate free radical polymerization and epoxy resin cationic polymerization are initiated respectively, the problems of quenching effect and poor storage stability of a traditional compound system are avoided, and when the single-component initiator is applied to a solder resist dry film, the problem of poor storage stability is solved. Compared with a commercially available initiator, the initiator provided by the invention has the advantages that the ultrahigh resolution of 12 microns can be realized under the exposure energy which is 20-50% lower than that of the commercially available initiator, the gelation time is shortened to 3.2 seconds, the finger touch drying time is 12.5 seconds, the curing efficiency is improved by more than or equal to 40%, and the initiator is particularly suitable for manufacturing a high-density interconnected PCB (Printed Circuit Board).

The application provides a cationic photocuring composition for ink and application thereof. The composition comprises a cationic polymerizable compound, a cationic initiator and a pigment, the cationic polymerizable compound comprises compound A-1 and compound A-2; wherein the structural formula of compound A-1 is R1 represents methyl or ethyl; compound A-2 is a polymerizable monomer without vinyl, the molecular weight of which is less than 300, and the molecular weight of oxygen in the molecule accounts for 12-30% of the molecular weight of the compound; the sum of the content of compound A-1 and compound A-2 accounts for 40wt%-90wt% of the total content of the composition; and the weight ratio of compound A-1 and compound A-2 is 8:1-1:5. The above-mentioned composition as the main component of the ink can effectively improve the problem that the cationic polymerization type ink is easy to block the nozzle, especially for high-precision nozzles, the effect is particularly significant, the pattern formed after curing is clear and uniform, and the appearance performance is excellent.

The invention relates to a technical scheme for preventing metal corrosion caused by a cationic polymerization initiator containing fluorine atoms. A cationic polymerization initiator composition which contains a fluorine atom-containing cationic polymerization initiator (A) and a hydrophilic ether solvent (B) that does not have an acetal structure or an active hydroxyl group, and wherein the content of the hydrophilic ether solvent (B) is 2.5 mass% or more with respect to the total mass of the cationic polymerization initiator composition.

The present disclosure relates to a composition comprising: (a) a cationic polymerization initiator; and (b) an indene based or cyclopentadiene based resin; wherein the cationic polymerization initiator is selected from the group consisting of (i) an aromatic sulfonium salt-based cationic polymerization initiator; (ii) a phosphonium salt-based cationic polymerization initiator; (iii) a quaternary ammonium salt-based cationic polymerization initiator; (iv) an aluminum complex-based cationic polymerization initiator; (v) an aromatic iodonium salt-based cationic polymerization initiator; (vi) an aromatic diazonium salt-based cationic polymerization initiator; (vii) a pyridinium-based cationic polymerization initiator and (viii) a mixture thereof. Also described are varnishes and coatings formed from said composition.

Provided are: a negative photosensitive composition which is capable of forming a pattern having a good shape and which is capable of improving adhesiveness to a side wall of a hollow structure; a photosensitive resist film which is provided with a photosensitive film that is formed using the negative photosensitive composition; a method for producing a hollow structure using the negative photosensitive composition; and a method for forming a pattern. The negative photosensitive composition contains a trifunctional or higher polyfunctional epoxy compound, a cationic polymerization initiator, and a bifunctional aromatic epoxy compound having a molecular weight of 800 or less. In the negative photosensitive composition, the ratio of the content of the difunctional aromatic epoxy compound to the total content (100% by mass) of the polyfunctional epoxy compound and the difunctional aromatic epoxy compound is 0.6-10% by mass.

The disclosure provides an active cationic polymerization initiator composition for synthesizing a ternary diblock copolymer, a diisopropenylbenzene copolymer and a terpene polymer. The disclosure further provides a flame-retardant resin composition, which includes: (a) a hydrocarbon resin; and (b) a reactive flame-retardant, and may optionally include a modified polyphenylene ether. A flame-retardant resin cured product formed from the flame-retardant resin composition may have high heat resistance, low dielectric constant, low dissipation factor, flame retardancy and / or film-forming properties, and is suitable for uses in fabrication of a semiconductor packaging material, a substrate and the like for the high-speed and high-frequency field.

The present invention provides a precursor solution for a gel electrolyte and its application. The precursor solution comprises a solvent and a monomer having multiple nitrile and epoxy groups. The precursor solution for the gel electrolyte provided by the present invention can be prepared into a polymeric form and then dissolved in an electrolyte. The monomers in the precursor solution undergo cationic polymerization, forming the electrolyte material into a gel state, thereby preventing battery leakage. Furthermore, the gel electrolyte material contains safety groups, which can enhance the safety performance of the battery.

The present invention addresses the problem of providing a photosensitive resin composition which has high micromachining properties and can yield a cured product having a low dielectric loss tangent. The main purpose of the present invention is to obtain a photosensitive resin composition which contains a polyimide resin, a cationic polymerizable compound and a cationic polymerization initiator and which is characterized in that the polyimide resin has a structure represented by formula (1) as a tetracarboxylic acid residue in all or some tetracarboxylic acid residues. (X moieties are each independently a single bond or a divalent linking group (in which the total number of carbon atoms is 10 or fewer). Y is a phenylene group, a naphthylene group, a group represented by formula (2) or a group represented by formula (4). ＊ denotes a bond to an amide group or a carbonyl group in an imide ring) (In formula (2) and formula (4), R1 and R2 each independently denote a monovalent hydrocarbon group having 1-10 carbon atoms, in which some hydrogen atoms may be substituted by halogen atoms, Z denotes a single bond or a divalent organic group having 1-20 carbon atoms, p and q each independently denote an integer between 0 and 4, and s denotes an integer that is 0 or 1. ＊ denotes a bond to X.)

The purpose of the present invention is to provide a negative photosensitive resin composition capable of obtaining a cured product having excellent low stress and low water absorption. The present invention is a negative photosensitive resin composition containing (A) a polyimide resin containing one or more skeletons selected from the group consisting of an alkylene oxy skeleton, a siloxane skeleton, and an aliphatic hydrocarbon skeleton having a linear structure, (B) a cationically polymerizable compound, and (C) a cationic polymerization initiator.

The invention relates to a reactively curable adhesive, to a reactively curable adhesive tape comprising the reactively curable adhesive, and to the use of corresponding adhesives and adhesive tapes for bonding of two or more components. The reactively curable adhesive comprises: (a) one or more (co)polymers; and (b) at least one epoxy compound; and (c) at least one photoinitiator for initiation of a cationic polymerization; and (d) at least one chemical compound comprising at least one phenyl group or a benzene ring-substituted derivative of a phenyl group.

Provided is a curable epoxy composition which can be cured in a short time in the presence of oxygen and which has excellent filling properties. A curable epoxy composition containing an epoxy compound having an epoxy group in the molecule and a photo-cationic polymerization initiator, the curable epoxy composition being used for use in a rotary electric machine and / or a semiconductor. It is preferable that the curable epoxy composition substantially does not contain a curing agent other than a photo-cationic polymerization initiator. The curable epoxy composition may also include a polyol.

To provide a thermosetting resin composition which is thermoset by irradiation with microwaves in a short time, and can bond much precise / small-sized members having low heat resistance once, and a method for manufacturing a composite structure which is composed of a precise / small-sized member using the thermosetting resin composition.SOLUTION: (1) A thermosetting resin composition for microwave irradiation contains a cyclic ether compound and a polymerization initiator, wherein the polymerization initiator is a thermal cationic polymerization initiator, and one or more members selected from the group consisting of a circuit connection member, an electronic / electric member, an optical member, a construction member, and an automobile member are bonded between the members or to other member under irradiation with microwaves. (2) A thermosetting resin composition for microwave irradiation contains a cyclic ether compound and a polymerization initiator, wherein the polymerization initiator is an iodonium-based photocationic polymerization initiator and a radical polymerization initiator.SELECTED DRAWING: None

Poly(oxazoline)- and poly(oxazine)-based lipids, process for the preparation thereof, and use thereofDisclosed are polymers of formulae (I) or (II)or polymers containing, based on all structural units, 10 to 95 mol % of structural units of the formula (III), 5 to 90 mol % of structural units of the formula (IV) and 0 to 20 mol % of structural units of the formula (V)or containing 10 to 95 mol % of structural units of the formula (VI), 5 to 90 mol % of structural units of the formula (VII) and 0 to 20 mol % of structural units of the formula (VIII)wherein at least one of the structural units of formula (III), (IV) or (V) or of formula (VI), (VII) or (VIII) with the grouping —CHR4—, —CHR5— or CHR7— or with the grouping —CHR5—, —CHR7— or —CHR10— is covalently bonded to a radical R2, whereinIni is a radical derived from an initiator of the cationic polymerization,R1 is selected from the group consisting of hydrogen or C1-C4 alkyl,R2 is selected from the group consisting of —OR11, —OCO—R11, —OCO—R14—CO—OR11, —OCO—R14—CO—NR12R13, —NR12—R14—CO—NR13R15, —O—R16—(O—OC—R18)m andR3, R4, R5, R6, R7, R8, R9 and R10 independentlky of one another are hydrogen, methyl, ethyl, propyl or butyl,R11 is C6-C20 alkyl,R12 and R15 independently of one another are hydrogen or alkyl,R13 is C6-C20 alkyl,R14 is alkylene, cycloalkylene, arylene or aralkylene,R16 is an m+1-valent aliphatic hydrocarbon radical,m is an integer from 1 to 5,R18 is C6-C20 alkyl, with the proviso, that several residues R18 of a residue R16 may be different within the scope of the given definitions,R17 is a trivalent bicyclic residue, andw is an integer in the range from 1 to 5000.These polymers are amphiphilic and can be used as a replacement for polyethylene glykols, for example in formulations comprising active ingredients.

The application discloses a UV and moisture dual-cured high-temperature-resistant hot-melt acrylate pressure-sensitive adhesive tape and a preparation process thereof, and belongs to the technical field of high polymer materials. The pressure-sensitive adhesive tape comprises a base material and an adhesive layer. Raw materials of the adhesive layer comprise acrylate prepolymer containing a side chain containing a vinyl ether group, modified terpene resin containing a phenolic hydroxyl group, alicyclic epoxy functional silane, a cationic photoinitiator and an antioxidant. By controlling the molar ratio of the phenolic hydroxyl group and the vinyl ether, the tackifying resin is chemically grafted into the polymer network by using the cationic chain transfer reaction, and the double mechanism of the light-induced cationic polymerization and the acid-catalyzed moisture curing is combined, so that the problems of poor temperature resistance and oxygen inhibition of the traditional hot-melt adhesive are solved. The tape has excellent high-temperature shear resistance, high initial adhesion and deep curing characteristics, and the preparation process has good hot-melt processing stability.

The present invention uses a negative-type photosensitive resin composition comprising a bisphenol novolak-type epoxy resin and a cationic polymerization initiator. The bisphenol novolak-type epoxy resin has a weight-average molecular weight of 4,000 or more. Such a negative-type photosensitive resin composition is suitable as a photosensitive material used for forming an upper plate portion of a hollow structure (100) comprising a support (10), a first cover layer (30), and a second cover layer (40) (upper plate portion), wherein a hollow portion (50) is provided between the support (10) and the first cover layer (30), and a plurality of holes (35) penetrating from the hollow portion (50) to the upper plate portion are formed in the first cover layer (30).According to such a negative-type photosensitive resin composition, it is possible to stably form a resin film on the first cover layer (30) provided with the holes (35) without the negative-type photosensitive resin composition flowing through the holes (35) of the first cover layer (30) and falling into the hollow portion (50), regardless of the conditions of a manufacturing process.

The hard coating composition includes a solvent and a hard coating solid matter. The hard coating solid substance comprises a silsesquioxane compound, a free radical polymerization initiator and a cationic polymerization initiator, the silsesquioxane compound comprises a free radical polymerizable functional group and a cationic polymerizable functional group, the free radical polymerizable functional group comprises a (meth) acrylate group, and the cationic polymerizable functional group comprises a (meth) acrylate group. The cationically polymerizable functional group includes an oxetane group. A method of manufacturing a window includes applying a hard coating composition on a base layer to form a preliminary hard coating; drying the preliminary hard coating to remove the solvent; and curing the dried preliminary hard coating layer to form the hard coating layer. The electronic device comprises a window manufactured by the method and a power module for supplying power.

The application discloses a kind of metallocene catalyst system, polyisobutylene and preparation method thereof.The metallocene catalyst system includes A, B, C, D four components;Component A is metallocene complex;Component B is borate;Component C is alkyl aluminum;Component D is selected from alkyl ether of carbon atom number 2~8.The metallocene catalyst system used in the application has high catalytic activity and raw materials are cheap and easy to obtain, which can greatly reduce production cost.Compared with BF3 catalyst system, the catalyst system provided by the application is non-toxic, harmless, non-polluting, non-corrosive, which can effectively solve the technical problems of toxic, harmful, corrosion and pollution existing in traditional technical route, thereby improving the operating environment, and ensuring personal health.The application can synthesize narrow distribution, medium molecular weight polyisobutylene under mild conditions of 0~80 DEG C, i.e., using conventional cooling water to remove heat, which solves the low temperature reaction problem existing in traditional cationic polymerization.

The present invention provides a hard coat layer-forming composition from which it is possible to form a hard coat layer that exhibits excellent adhesiveness. A hard coat layer-forming composition according to the present invention comprises: at least one selected from the group consisting of hydrolyzable silicon compounds, hydrolysates thereof, and hydrolysis condensates thereof; a silsesquioxane compound having an oxetanyl group; a cationic polymerization initiator; and two or more hydroxybenzophenone compounds having different numbers of hydroxy groups.

The invention discloses a triblock energetic copolymer and a preparation method thereof, 3-difluoroamino-3-methyloxetane is used as a polymeric monomer, boron trifluoride diethyl etherate is used as a catalyst, hydroxyl-terminated polybutadiene is used as an initiator, dichloromethane is used as a solvent, and a cationic polymerization reaction is performed to obtain triblock copolyether, namely the triblock energetic copolymer. The invention relates to a triblock energetic copolymer and a preparation method thereof. According to the preparation method disclosed by the invention, the poly (3-difluoroamino-3-methyloxetane)-hydroxyl-terminated polybutadiene-poly (3-difluoroamino-3-methyloxetane) triblock energetic copolyether with relatively narrow molecular weight distribution is obtained by adopting a cationic polymerization method, and the hydroxyl-terminated polybutadiene is introduced into the 3-difluoroamino-3-methyloxetane, so that the molecular weight distribution of the poly (3-difluoroamino-3-methyloxetane) triblock energetic copolyether is relatively narrow; the prepared triblock copolyether can meet the low-temperature mechanical property required by an adhesive system.

A photosensitive epoxy resin composition, comprising at least: (A) an epoxy resin comprising two or more epoxy groups in one molecule; (B) a cationic polymerization catalyst; (C) a silicone compound comprising one or more alkylsiloxane groups in one molecule; and (D) an alcohol or phenol compound comprising a long chain alkyl group having 9 to 18 carbon atoms.

The invention discloses a UV-NIR double-trigger near-zero shrinkage adhesive based on spiro orthocarbonate molecular expansion compensation and a core-shell photothermal agent and a preparation method of the UV-NIR double-trigger near-zero shrinkage adhesive. Relates to the field of adhesives. The invention relates to a photo-thermal composite material, which is prepared from the following components in parts by mass: 20 to 45 parts of spiro orthocarbonate expansion monomers, 15 to 30 parts of cationic polymerization monomers, 10 to 25 parts of free radical polymerization monomers, 0.5 to 5 parts of CuS coated SiO2 core-shell photo-thermal conversion agents, 1 to 8 parts of photo-thermal double initiation systems and 0.1 to 2 parts of auxiliaries. Precise local heating of near-infrared laser is achieved through the core-shell structure photo-thermal agent, and the technical problems that in the prior art, polymerization shrinkage is large, single-mode curing is incomplete, and damp-heat stability is poor are solved in cooperation with the ring-opening expansion effect of the spiro monomer and a hybrid curing system. The obtained adhesive has ultra-low volume shrinkage, high bonding strength and excellent hygrothermal stability, and is especially suitable for the fields with strict requirements on dimensional stability, such as precision electronic packaging and optical device assembly.

This invention belongs to the field of photosensitive materials technology, specifically relating to a multi-curing photosensitive adhesive with strong weather resistance and its preparation method. This invention overcomes the limitations of traditional photosensitive adhesives in terms of curing depth and light source compatibility. The oil phase component introduces a fluorosilicone epoxy-polyurethane acrylate composite resin and a multifunctional diluent, integrating epoxy groups, acrylate groups, and siloxane groups on the same molecular chain. Combined with a full-band composite initiator, it achieves rapid response to 365nm UV, 405nm laser, and mercury lamps. Deep cross-linking is achieved through cationic polymerization and moisture condensation, significantly improving adhesion and solvent resistance. The aqueous component uses fluorosilicone-modified polyvinyl alcohol and aminofluorosilicone-modified polyvinyl acetate as amphiphilic emulsifying stabilizers, combined with a gradient emulsification process to form a stable oil-in-water emulsion. Combined with caprolactam-blocked latent curing agents, it achieves long-term storage at room temperature. After heating and unblocking, it cross-links with hydroxyl groups, improving film density and exhibiting ultra-high storage stability and long-lasting weather resistance.

The present invention addresses the problem of providing a composition having excellent adhesion to various plastic films and low viscosity. The present invention is a composition containing an alicyclic epoxy compound (A), a monofunctional epoxy compound (B), an oxetane compound (C), and a cationic polymerization initiator (D), the alicyclic epoxy compound (A) being contained in an amount of 50 parts by mass or more per 100 parts by mass of the total amount of the alicyclic epoxy compound (A), the monofunctional epoxy compound (B), and the oxetane compound (C). The alicyclic epoxy compound (A) is preferably a compound (A1) having two or more alicyclic epoxy groups.

The composition according to the present invention contains a cationically polymerizable compound (A), a cationic polymerization initiator (B), and a curing retarder (X), and in the composition, when viscosity measurement is performed under specific measurement conditions, the viscosity rise initiation temperature at which the amount of change in viscosity per unit time is 100 mPa.s / sec is 45-95 DEG C (inclusive).

To provide a cationic polymerization initiator that absorbs wavelengths in a long-wavelength region of 385 to 405 nm and achieves a superior monomer conversion ratio, and a composition for optical stereolithography using the same.SOLUTION: A composition for optical stereolithography comprises a cationically polymerizable compound having a glycidyl ether structure, and a cationic polymerization initiator that is an aromatic sulfonium salt represented by the following structural formula (where X- denotes a monovalent anion).SELECTED DRAWING: Figure 7

The invention belongs to the technical field of petroleum resin preparation, and relates to a preparation method of hydrogenated petroleum resin based on D-A reaction toughening. Specifically, conjugated diene and a dienophile are subjected to a Diels-Alder reaction to generate a prepolymer monomer with a cyclohexene structure, cationic polymerization of the prepolymer is initiated under catalysis of a Lewis acid catalyst, a molecular chain is further increased, a D-A polymer with higher molecular weight and a specific branched structure is obtained, and deep hydrogenation is performed to obtain the high-molecular-weight and high-molecular-weight D-A polymer with a specific branched structure. The fully saturated hydrogenated petroleum resin with a rigid alicyclic structure and a flexible ester group side chain is obtained. The hydrogenated petroleum resin has good thermodynamic properties, mechanical properties and aging resistance which are synergistically optimized, meets the technical requirements of high polymer material additives, and has remarkable strategic development potential and market competitiveness in the field of refined, functionalized and green chemical materials.