132 results about "Cyanoacrylate" patented technology

The invention relates to a solid polymer electrolyte, in particular to a high-adhesion flame-retardant solid polymer electrolyte prepared through in-situ solidification and application. The solid polymer electrolyte is prepared from an electrolyte component in a porous support material through in-situ solidification; wherein the electrolyte comprises the following components: an intrinsic non-combustible phosphate organic solvent, lithium salt, a cyanoacrylate monomer and an initiator; the thickness of the solid polymer electrolyte is 3-1000 [mu] m, the room temperature ionic conductivity is 3 * 10 <-5 >-8 * 10 <-3 > S / cm, and the electrochemical window is greater than or equal to 4.6 V. The high-adhesion flame-retardant solid polymer electrolyte disclosed by the invention has extremely excellent interfacial compatibility with a positive electrode and a negative electrode and high adhesion characteristic, and can be well compatible and self-adaptive to volume change and the like of a solid-state lithium battery during long-period circulation; the method is suitable for constructing a long-life solid polymer lithium metal battery without additional stacking pressure and a solid polymer lithium ion battery with a silicon monoxide negative electrode.

The invention discloses a high-strength puncture-resistant composite film, and relates to the technical field of composite films, the high-strength puncture-resistant composite film comprises a surface protection layer, a first reaction layer, a second reaction layer, a third reaction layer and a bottom protection layer which are arranged in sequence; the first reaction layer is prepared from nylon 6 and an amino silane coupling agent; the second reaction layer is made of thermoplastic polyurethane, and a containing channel and cyanoacrylate located in the containing channel are arranged in the second reaction layer; the third reaction layer comprises polypropylene, calcium carbonate and imidazolium ionic liquid; when the composite film is punctured, the cyanoacrylate is in contact with the amino silane coupling agent to generate curing reaction, so that a punctured object is fixedly clamped at the position penetrating through the first reaction layer; the imidazolium ions are in contact with the cyanoacrylate to generate polymerization reaction and form a polymer, and the calcium carbonate is in contact with the leachate to release CO2, so that the polymer is forced to be pressed into a puncture hole, and a puncture object is further retained, so that the anti-puncture effect of the composite membrane is relatively good.

The invention relates to the related technical field of dispergators, in particular to a compound dispergator for ceramic cultural relics and a preparation method of the compound dispergator for the ceramic cultural relics, and the compound dispergator for the ceramic cultural relics is composed of a main solvent I, a main solvent II, a penetration enhancer, a pH buffering agent, a thickening agent and a surfactant, wherein the main solvent I is 40-70 parts, the main solvent II is 5-10 parts, the penetration enhancer is 5-15 parts, the pH buffering agent is 0.5-2 parts, the thickening agent is 0.5-2 parts, and the surfactant is 1-4 parts. The special dispergator for the ceramic cultural relics and the preparation method of the special dispergator have the following remarkable advantages of high efficiency and broad spectrum: through compounding of the two main solvents and the penetration enhancer (NMP), a synergistic effect is formed, various stubborn adhesives from cyanoacrylate to cross-linked epoxy resin and the like can be effectively treated, the removal efficiency is high, and the action time is short. The preparation method has the advantages of simple process, excellent safety, controllable operability and environmental friendliness, the whole preparation process is carried out at normal temperature and normal pressure, no special equipment is needed, the process is simple, the reproducibility is good, and standardized production is easy to realize.

The invention relates to the technical field of biological materials, and provides an absorbable self-repairing suture line for maintaining the stability of a mechanical biological microenvironment and a preparation method of the absorbable self-repairing suture line. According to the suture line, an absorbable high polymer material is adopted as a matrix, and PLA microcapsules containing a medical-grade cyanoacrylate n-octyl ester repairing agent are uniformly dispersed in the matrix through a melt blending spinning process. When the suture line generates microcracks at dynamic tissue parts such as cardiovascular and digestive tracts due to periodic stress, the stress at the tip of the cracks enables the microcapsules to be broken to release the repairing agent, rapid in-situ polymerization occurs under triggering of tissue fluid, the self-repairing efficiency of 90% or above is achieved, and the strength retention rate of 95% or above is maintained in the key rehabilitation period of the suture line. The defect that a traditional absorbable suture line is prone to fatigue fracture in a dynamic environment is overcome, the mechanical integrity is actively maintained through an intelligent self-repairing mechanism, all components can be completely degraded and absorbed, and a safer and more reliable solution is provided for dynamic tissue repairing.

The present invention relates to the use of composition comprising: - n-heptylcyanoacrylate; - a thickener; wherein said composition has a viscosity ranging from 100 to 7 000 mPa.s at 25°C, in an electric or electronic or optical device.

The present application provides a low odor / low whitening structure instant adhesive and a preparation method thereof. The low odor / low whitening structure instant adhesive comprises 70-90 wt% of cyano acrylate, 3-20 wt% of acrylic acid copolymer, 1-13 wt% of fumed silica, 0.2-2 wt% of plasticizer, 0.1-1 wt% of carbon black and 0-0.05 wt% of additive in terms of mass fraction. The present application selects ultra-high purity monomers in the environment of low polymerization inhibitor, which can significantly shorten the polymerization induction period, so that the monomer can be instantaneously initiated and completely cured after contacting the surface of the substrate, thereby minimizing the release of volatile monomers into the environment, further reducing the gaseous monomer that causes respiratory tract / mucosa irritation from the source, and inhibiting the polymerization of volatile monomers in the air to form white powder.

The present invention is directed to a plastic extension for a nail covering and a nail applique kit including at least one plastic extension, an adhesive including a UV gel a cyanoacrylate, a free radical curable monomer composition or a PSA and an optional processing aid.

The present invention relates to a curable composition comprising:-a treated (meth) acrylate obtained by a process comprising a step of treating the (meth) acrylate with a clay wherein the clay is an acid-activated montmorillonite; and-a cyanoacrylate ester.

Provided herein are synergistic stabilizer compositions having a stabilizing amount of a co-synergist; optionally a stabilizing amount of a co-active agent; a stable amount of an ultraviolet absorber selected from the group consisting of an o-hydroxyphenyltriazine, an o-hydroxybenzophenone, an oxanilide, a cyanoacrylate, a benzoxazinone, optionally an o-hydroxyphenylbenzotriazole, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer. The total weight of co-synergist (IV) and co-active agent (when present) is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of co-synergist to co-active agent (when present) is from 1: 99 to 99: 1. Also disclosed are masterbatch concentrates, stable polymer compositions, and stable articles, all containing the stabilizer composition.

The invention provides an electrolyte suitable for a silicon-based negative electrode material, a lithium ion battery containing the electrolyte and an electronic device. The electrolyte suitable for the silicon-based negative electrode material comprises an electrolyte additive, a metal salt and a non-aqueous solvent, wherein the electrolyte additive comprises a basic additive and a functional additive; the functional additive comprises a combination of at least two of an oxide material, a thiocarbonate compound or a cyanoacrylate compound, so that the electrochemical performance and the safety performance of the lithium ion battery under high-temperature and low-temperature conditions are effectively improved.

This invention relates to cyanoacrylate-containing compositions that include, in addition to the cyanoacrylate component, a benzodioxol free radical stabilizer. The inventive cyanoacrylate compositions demonstrate improved shelf life stability while maintaining the level of adhesive performance.

The present invention concerns a compound of formula (I), wherein R1 is H or an organic moiety, said compound of formula (I) having a biocarbon content equal to or higher than 20%.

This invention belongs to the field of polymer-based solid-state battery technology, specifically disclosing a method for preparing a precursor solution and a gel polymer electrolyte, and their applications. The precursor solution includes a liquid monomer and an electrolyte salt dissolved in the liquid monomer, wherein: the monomer is one or more of the following: cyclic ether, cyclic carbonate, acrylamide and acrylamide derivatives containing functional groups, acrylate and acrylate oligomers containing double bonds on one side, acrylonitrile and acrylonitrile derivatives containing functional groups, cyanoacrylate and cyanoacrylate derivatives containing functional groups; the electrolyte salt is a lithium salt, potassium salt, or sodium salt. This invention utilizes electron beam irradiation to initiate the polymerization of the precursor solution inside the battery to prepare a gel polymer electrolyte or polymer-based battery, avoiding the adverse effects of using initiators on battery performance, while effectively improving the contact performance of the electrode-electrolyte interface. This preparation method is simple and efficient, and is conducive to large-scale production.

The present invention relates to a heat exchange device comprising: a main part (10) provided with a flat assembly surface, the main part (10) comprising aluminium and forming fluid circulation channels leading to ports arranged on the assembly surface; and a connecting end piece comprising a connection base, the connecting base comprising a connection surface into which the connection channels open, the connecting base being assembled with the main part (10) by means of an adhesive substance linking an assembly zone of the assembly surface in the periphery of the ports to a connection zone of the connection surface in the periphery of the ports, the openings and the ports corresponding to each other, the adhesive substance comprising an adhesive substance which is either an epoxy, a polyurethane, an acrylic or a hybrid, the hybrid adhesive substance comprising at least two chemical functional groups selected from one of the following: epoxy, cyanoacrylate, acrylic and polyurethane.

The application discloses a preparation method of an implantable cyanoacrylate medical adhesive and application thereof, and belongs to the technical field of medical polymer material purification, and aims to solve the technical problems of easy monomer polymerization caused by high temperature, poor selectivity of impurity removal, excessive solvent residue, substandard biocompatibility, waste of by-products, poor batch stability and difficulty in realizing implant-grade purity in the existing cyanoacrylate medical adhesive purification process. The method comprises the following steps: low-temperature supercritical gradient extraction, selective adsorption refining, membrane separation impurity removal, by-product resource modification and finished product preparation. The low-temperature purification process below 40 DEG C is adopted throughout the application, the traditional high-temperature distillation and recrystallization process is abandoned, the self-polymerization of cyanoacrylate monomers caused by heat is avoided from the root, the effective monomer content of the finished product is ensured to be stable, the curing performance is uniform, the problem of high-temperature damage to the stability of monomers in the existing process is solved, the risk of high-temperature polymerization is eliminated, and the stability of the medical adhesive is greatly improved.

The application discloses a 2-cyanoacrylate compound represented by a general formula (I): each substituent is shown in the specification. The application also discloses a preparation method and application of the 2-cyanoacrylate compound. The 2-cyanoacrylate compound is suitable for inhibiting mycotoxins and preventing diseases caused by pollution fungi.

A method of applying a cosmetic article. The method includes applying an adhesive composition to at least one of a keratin-containing substrate and a cosmetic article. The method includes positioning the other of the keratin-containing substrate and cosmetic article in direct contact with the adhesive composition such that the keratin-containing substrate and cosmetic article are attached to one another through the adhesive composition. The adhesive composition includes a cyanoacrylate composition, and from 0.05 % to five % by weight an additive composition comprising at least one substituted catechol group, based on the total weight of the adhesive composition.

The present invention relates to curable cyanoacrylate compositions that are suitable for use as adhesive compositions, such as for example in a tape form.

The present invention relates to a sunscreen or daily care composition comprising butyl methoxydibenzoylmethane, at least one UV filter selected from triazine derivatives, at least one light stabilizer selected from butyl octanol salicylate, benzotriazolyl dodecyl p-cresol, ethylhexyl methoxypropylene, polyester-8, diethylhexyl syringylidenemalonate, trimethoxybenzylidene pentanedione, diethylhexyl 2,6-naphthalene dicarboxylate, condensed ring cyanoacrylate derivatives and polyester-25, wherein the composition does not contain octocrylene and ethylhexyl methoxycinnamate.

Two-part cyanoacrylate / free radically curable adhesive systems demonstrating improved toughness are provided.

The present invention relates, inter alia, to a method for producing a microbubble, comprising (i) providing a polymerizable monomer and a non-polymerizable compound; and (ii) polymerizing the monomer in an aqueous solvent in the presence of the non-polymerizable compound to form a polymeric shell encapsulating an inner lumen; wherein the polymerizable monomer is selected from the group consisting of alkyl cyanoacrylates, alkyl acrylates, lactide, glycolide, and combinations thereof; and the non-polymerizable compound is capable of integrating into the polymeric shell as the polymerization proceeds so as to form a plurality of non-polymerized nanocavities.

To provide a pavement block repair method and a repair tape that can provide appropriate emergency treatment even on a wet installation surface.SOLUTION: A pavement block repair method includes an adhesive application step and an adhering step; in the adhesive application step, an adhesive 8 containing cyanoacrylate is applied to the adhesive layer 7 of the repair tape 4 to form adhesive areas 9 and adhesive areas 10, in the adhering step, the repair tape 4 is affixed between adjacent braille blocks 2 and braille blocks 3 to be repaired (or the installation surface 1) in such directions that the adhesive areas 9 and adhesive areas 10 are attached across joint areas 13 between the braille blocks 3 to be repaired and the braille blocks 2 (or the boundary areas 14 between the braille blocks 3 to be repaired and the installation surface 1), with the periphery of the braille blocks 3 as the boundary.SELECTED DRAWING: Figure 2

The present application relates to a medical adhesive and a preparation method therefor. Starting materials for preparing the medical adhesive comprise the following in parts by mass: 60-90 parts of cyanoacrylate, 5-30 parts of a plasticizer, 0-7 parts of acrylate rubber, 0.05-0.08 parts of polyoxyethylene hydrogenated castor oil, and 0.02-0.04 parts of hydroquinone.

An organic dental gum pad formed from a moldable composition includes a nano starch-based biomaterial, including a nanocomponent, a starch biocomposite, and an organic composition. The nanocomponent includes fish bone powder, oyster shell powder, coconut shell powder, graphene, and sheep bone powder. The starch biocomposite includes date seed nano-starch, black palm seed-based nanocellulose, corn starch, and olive seed-based nano-starch, and the organic composition includes at least one of Lannea sp. glue, waste jackfruit latex, Acacia nilotica glue, a sheep gut oil-based glycerin, beetroot peel dye, dragon fruit peel dye, mangosteen dye, pomegranate peel, and aroid peel gel. The organic dental gum pad further includes at least one polymer component, and a cyanoacrylate. The moldable composition includes particles having an average particle size of less than 30 nm, and a molded structure has a thickness of 0.5 to 4 mm.

The present invention concerns a two-part curable composition comprising: a) a first part (part A) comprising:—at least one cyanoacrylate monomer; b) a second part (part B) comprising:—a nucleophilic initiator;—a plasticizer; said two-part curable composition further comprising a color changing indicator in part A and / or part B; said nucleophilic initiator being selected from the group consisting of: organic bases, quaternary ammonium salts, metal salts of carboxylic acids, and mixtures thereof. The present invention also concerns its use, in particular for determining cure of said composition.

The present invention refers to a curable two-part adhesive composition comprising a first part comprising one or more cyanoacrylate monomer(s), one or more (metha)acrylate monomer(s), a per-compound and, optionally, additives to control viscosity and rheology; and a second part comprising: a non-reactive diluent and a transition metal catalyst, and optionally an electron rich initiator for cyanoacrylates. It also relates to a syringe or a cartridge comprising said two-part curable composition, to the use of such composition for bonding substrates, to the use of such composition filling depressions, cracks or holes in a substrate or between substrates to a method for bonding substrates using said composition, and to a repair method for filling depressions, cracks or holes in a substrate or between substrates using said composition.

The invention discloses an n-butyl cyanoacrylate flexible adhesive and a preparation method thereof. The flexible adhesive is prepared from the following raw materials in parts by weight: 80 to 90 parts of alpha-cyanoacrylate, 0.004 to 0.03 part of a polymerization inhibitor, 0.1 to 0.3 part of an accelerator, 3 to 10 parts of a thickening agent, 0.1 to 0.6 part of an antioxidant and 0.5 to 4.5 parts of a thixotropic agent. The invention provides an n-butyl cyanoacrylate flexible adhesive and a preparation method thereof. The flexible adhesive is convenient to use and still keeps certain elasticity after being cured; and the preparation steps are simple and the cost is low.

The present invention relates to a photocurable composition comprising: - a cyanoacrylate A selected from the group consisting of: n-hexylcyanoacrylate, n-heptylcyanoacrylate, n-octylcyanoacrylate, and mixtures thereof; - a radical photoinitiator; - a metallocene compound; - a compound B selected from boron trifluoride, boron trifluoride etherate, boron trifluoride dihydrate, boron trifluoride ethanol, boron trifluoride methanol, boron trifluoride acetic acid, boron trifluoride butyl ether, boron trifluoride butanol, boron trifluoride propanol, boron trifluoride dimethyl sulfide, boron trifluoride acetonitrile, boron trifluoride tetrahydrofuran, boron trifluoride isopropyl alcohol; - optionally a radical polymerization inhibitor, provided that when the photocurable composition comprises a radical polymerization inhibitor, its weight content is 0.04% by weight or less; wherein the molar content of compound B is greater than or equal to 0.141 mmol per 1 kg of the composition; and wherein the molar ratio metallocene compound / compound B ranges from 2 to 8.

The invention provides a wound repair material and a preparation method thereof, and relates to the field of biomedical materials. The preparation method of the wound repair material comprises the following steps: mixing alpha-cyanoacrylate and acetone to obtain an adhesion matrix solution; mixing polyvinyl butyral, quaternized cellulose, dexamethasone and an organic solvent to obtain a functional additive solution; and performing double-needle array electrostatic spinning on the adhesion matrix solution and the functional additive solution to obtain the wound repair material. The wound repair material prepared by the invention has the functions of relatively high adhesion, antibacterial ability, anti-inflammatory ability, biocompatibility and the like, can avoid side effects such as thrombus risk and the like, and can be safely and efficiently adapted to healing environments of different wounds.