44 results about "Vinyl Amide" patented technology

The invention relates to the technical field of oilfield exploitation, and discloses a preparation method of N-vinyl amide. The method comprises the following steps: under a heating condition, enabling a structure as shown in a formula (1) and a structure as shown in a formula (2) to be in contact and react, wherein in the formula (1), R1 is H or alkyl of C1-C8, and R2 is hydrogen or alkyl of C1-C4; in the formula (2), R3 is H or C1-C8 alkyl, and M is H, Na, K or Cs. The method has the advantages of low reaction temperature, simplicity in operation, small corrosion to equipment, high product yield and excellent purity.

The invention provides a high-solid-content styrene-butadiene latex synthesis process which comprises the following steps: (1) mixing and shearing butadiene, styrene, vinyl amide and a polyfunctional group crosslinking monomer to prepare a mixed monomer; (2) adding deionized water, an emulsifier and a mixed monomer accounting for 30-60% of the total weight into the reaction kettle, vacuumizing, adding an initiator at the temperature of 5-15 DEG C, reacting for 1-1.5 hours, dropwise adding the rest of the mixed monomer for 6-10 hours, and after dropwise adding, carrying out polymerization reaction at the temperature of 40-60 DEG C for 3-4 hours to obtain the low-solid-content styrene-butadiene latex; and (3) adding an auxiliary agent inorganic salt and an organic concentrating agent into the low-solid-content styrene-butadiene latex, carrying out flash evaporation, and treating by a stripping tower to obtain the high-solid-content styrene-butadiene latex. While the solid content of the latex is increased, the viscosity of polymer emulsion, the size of latex particles, the particle size interval distribution and the like can be effectively controlled.

The invention provides a positive plate and a preparation method thereof, a battery and electric equipment. The positive plate comprises a non-fluorine binder and a dispersing agent, the dispersing agent is selected from one or more of an N-vinyl amide dispersing agent, a rubber dispersing agent and a polyvinylidene fluoride dispersing agent. By adopting the non-fluorine binder, the problems of modification and environmental protection of polyvinylidene fluoride are avoided, and the proper dispersing agent is selected, so that the dispersity of the positive electrode slurry is improved, the fineness of the positive electrode slurry is improved, and the quality of a positive plate is improved.

Disclosed are a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the separator for a rechargeable lithium battery including a porous substrate; a safety functional layer on at least one surface of the porous substrate; and an adhesive layer on the safety functional layer, wherein the safety functional layer includes polymer particles having a melting point of 100° C. to 200° C., an aqueous crosslinked binder, and inorganic particles, the aqueous crosslinked binder includes a crosslinked product of a poly(vinyl amide)-based copolymer, and the poly(vinyl amide)-based copolymer includes a unit derived from a vinyl amide monomer and a unit derived from a monomer including a crosslinkable group.

Silicone hydrogel contact lens formulations are described herein. The formulation has a silicone component and a silicone-free component. The silicone component comprises two or three compounds represented by a formula 1, a formula 2 or a formula 3. The silicone-free component includes a methacrylate component and an N-vinyl amide component. The methacrylate component is prepared from hydroxybutyl methacrylate (HOB) and isobornyl methacrylate (IBM). And the N-vinyl amide component is prepared from N-vinyl N-methyl acetamide. When compounds of Formula 1 and compounds of Formula 2 are present in the formulation in specific ratios relative to each other, specific amounts of HOB and IBM are provided to achieve specific ratio results in desired silicone hydrogel contact lenses. Silicone hydrogel contact lenses are also described.

Silicone hydrogel contact lens formulations are described herein. The formulation has a silicone component and a silicone-free component. The silicone component comprises two or three compounds represented by a formula 1, a formula 2 or a formula 3. The silicone-free component includes a methacrylate component and an N-vinyl amide component. The methacrylate component is prepared from hydroxybutyl methacrylate (HOB) and isobornyl methacrylate (IBM). And the N-vinyl amide component is prepared from N-vinyl N-methyl acetamide. When compounds of Formula 1 and compounds of Formula 2 are present in the formulation in specific ratios to each other, specific amounts of HOB and IBM are provided to achieve specific ratio results in desirable silicone hydrogel contact lenses. Silicone hydrogel contact lenses are also described.

Disclosed herein are amine containing copolymer compositions based on free radical and controlled radical polymerization of monomer compositions including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I): with k, R, R1, and R2 defined herein with one or more monomers selected from the group consisting of optionally substituted acrylates, methacrylates, acrylamides, methacrylamides, acrylonitriles, methacrylonitriles, vinyl ethers, N-vinyl amides, or combinations thereof. Further disclosed herein are methods of making and methods for using such copolymer compositions.

The present invention provides a silicone hydrogel contact lens formulation, comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer, triphenylphosphine (TPP) and one or more of anthraquinone blue tinting agent, a benzophenone UV-absorbing agent or a benzotriazole HEVL absorber; a silicone hydrogel contact lens formed from the polymerisation of the silicone hydrogel contact lens formulation; and the use of an anthraquinone blue tinting agent, a benzophenone UV-absorbing agent and / or a benzotriazole HEVL absorber to stabilise a formulation comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer and TPP.

Silicone hydrogel contact lens formulations are described herein. The formulation has a silicone component and a silicone-free component. The silicone component comprises two or three compounds represented by a formula 1, a formula 2 or a formula 3. The silicone-free component includes a methacrylate component and an N-vinyl amide component. The methacrylate component is prepared from hydroxybutyl methacrylate (HOB) and isobornyl methacrylate (IBM). And the N-vinyl amide component is prepared from N-vinyl N-methyl acetamide. When compounds of Formula 1 and compounds of Formula 2 are present in the formulation in specific ratios relative to each other, specific amounts of HOB and IBM are provided to achieve specific ratio results in desired silicone hydrogel contact lenses. Silicone hydrogel contact lenses are also described.

Provided are: a polyvinyl alcohol resin which is capable of obtaining a water-soluble film having good cold water solubility and mechanical strength, has good biodegradability, and has excellent filterability when made into an aqueous solution; a water-soluble film, an extrusion-molded article, a filament, a nonwoven fabric, a container, a method for producing a water-soluble film, and an aqueous solution, each of which contains the polyvinyl alcohol resin; a polyvinyl alcohol resin which contains, as a main component, a modified polyvinyl alcohol containing an N-vinylamide unit, and which is characterized in that the ratio (N1 / N2) of the number of particles (N1) having a size of 1 [mu] m to the number of particles (N2) having a size of 2 [mu] m contained in 1 mL of a 2 mass% aqueous solution of the polyvinyl alcohol resin is 0.1-50.

Disclosed herein are amine containing copolymer compositions based on free radical and controlled radical polymerization of monomer compositions including an amine-derivatized alpha-methyl styrene (ADAMS) monomer according to structure (I):with k, R, R1, and R2 defined herein with one or more monomers selected from the group consisting of optionally substituted acrylates, methacrylates, acrylamides, methacrylamides, acrylonitriles, methacrylonitriles, vinyl ethers, N-vinyl amides, or combinations thereof. Further disclosed herein are methods of making and methods for using such copolymer compositions.

Proposed is a copolymer composition including a copolymer and a cross-linking agent, in which the copolymer includes 30% or more to 80% or less by weight of at least one type of monomer units selected from the group consisting of acrylate-based monomer units, acrylonitrile-based monomer units, vinylamide-based monomer units, and acrylamide-based monomer units and 20% or more to 70% or less by weight of vinylpyrrolidone monomer units, based on 100% by weight of the copolymer. In addition, a slurry composition, a separator, and a secondary battery that contains the polymer composition are proposed.

Provided are a separator coating composition, a method of manufacturing a separator using the same, and a separator and a lithium battery using the same. The separator coating composition includes a binder containing an aqueous crosslinking reactive poly(vinylamide)-based copolymer, a crosslinking agent having at least bifunctionality, inorganic particles, and water, wherein the poly(vinylamide)-based copolymer includes a repeating unit derived from a vinylamide monomer and a repeating unit derived from a crosslinking reactive group-containing monomer. The separator coating composition may be used to prepare a separator capable of exhibiting high heat resistance even at a thinner coating thickness.

The invention provides a silicone hydrogel contact lens formulation comprising a difunctional siloxane, a hydrophilic N-vinyl amide monomer, and at least 0.10% (wt / wt) triphenylphosphine (TPP); a silicone hydrogel contact lens formed by polymerizing the silicone hydrogel contact lens formulation, and the use of TPP to improve the surface properties of a contact lens prepared from a formulation comprising a difunctional siloxane and a hydrophilic N-vinyl amide monomer.

The invention belongs to the field of flow batteries, and particularly relates to an electrolyte, a preparation method thereof and an all-vanadium flow battery. The electrolyte comprises vanadium ions, bismuth ions, an N-vinyl amide polymer and an acid, a monomer of the N-vinyl amide polymer contains an amido bond and a carbon-carbon double bond connected with an N atom of the amido bond. By introducing the N-vinyl amide polymer, the catalytic activity of the catalyst is ensured, the stability of the electrolyte is improved, and the efficiency, stability and cycle performance of the all-vanadium redox flow battery are improved.

The invention belongs to the field of macromolecules, and relates to an aerogel compound fertilizer, a biodegradable film and a preparation method and application thereof. The aerogel compound fertilizer comprises a bio-based high-molecular material carrier and a fertilizer loaded on the bio-based high-molecular material carrier, and is prepared by reacting a bio-based high-molecular material, an auxiliary agent and a water-soluble fertilizer, the bio-based high polymer material is a plant hormone; the auxiliary agent is a long-chain aliphatic compound and an N-vinyl amide polymer; based on 100 parts by weight of the aerogel compound fertilizer, the use amount of the bio-based high polymer material is 20-60 parts by weight, the use amount of the long-chain aliphatic compound is 1-10 parts by weight, the use amount of the N-vinyl amide polymer is 1-10 parts by weight, and the use amount of the water-soluble fertilizer is 10-80 parts by weight. The film prepared from the biodegradable composition disclosed by the invention has the characteristics of good mechanical property, good weather resistance, good fertilizer slow release performance, biodegradability and the like.

The invention relates to the technical field of amide compounds, and discloses a method for preparing N-(2-substituted ethyl) amide and N-vinyl amide, and a method for preparing N-(2-substituted ethyl) amide, the method comprises the following steps: under alkaline conditions, amide is contacted with 1, 2-disubstituted ethane to carry out substitution reaction, the amide has a structure shown in a formula (1), the 1, 2-disubstituted ethane has a structure shown in a formula (2), and the 1, 2-disubstituted ethane has a structure shown in a formula (3). The 1, 2-disubstituted ethane has a structure as shown in a formula (2), and in the formula (1), R1 and R2 are respectively and independently H or C1-C5 alkyl; in formula (2), R3 and R4 are each independently Cl, Br, I, a hydrocarbyl acyloxy group or a hydrocarbyl sulfonyloxy group. According to the method for synthesizing the required raw materials, only one-step reaction is needed, the synthesis route is simplified, the amide raw material and the 1, 2-disubstituted ethane raw material are cheap, and the raw material cost can be remarkably reduced. # imgabs0 #

The present application relates to a silicone hydrogel prepared by polymerization of a polymerizable composition. The polymerizable composition comprises the following components: (a) a monofunctional siloxane monomer; (b) a hydrophilic N-vinyl amide monomer; (c) a hydrophobic vinyl monomer; (d) a hydrophilic vinyl monomer containing a hydroxyl group; (e) a non-silicone type vinyl crosslinker; and (f) a free radical initiator. The hydrophobic vinyl monomer has a refractive index greater than 1.41, and the hydrophobic vinyl monomer has a glass transition temperature greater than or equal to 60°C. The present application also relates to a contact lens prepared from the above silicone hydrogel and a method for preparing the same. The contact lens described herein has a release rate of up to 100%, and a dry sheet modulus preferably greater than 100 MPa.

(a) At least one thermosetting agent selected from the group consisting of non-blocked isocyanates, blocked isocyanates, and triazine compounds, (b) A polymerizable compound containing a vinyl group selected from the group consisting of vinyl ether groups, N-vinylamide groups, and N-vinylcarbamate groups, (c) A monofunctional (meth)acryloyl-containing compound, and a homopolymer of the monofunctional (meth)acryloyl-containing compound having a Tg of less than 0 °C, characterized by a curable inkjet composition for printed circuit boards.

The present invention provides a silicone hydrogel contact lens formulation comprising a polymerizable siloxane component, a hydrophilic N-vinylamide monomer, triphenylphosphine (TPP), and one or more of an anthraquinone blue tint, a benzophenone UV absorber, or a benzotriazole HEVL absorber; a silicone hydrogel contact lens formed from the polymerization of the silicone hydrogel contact lens formulation; and the use of an anthraquinone blue tint, a benzophenone UV absorber, and / or a benzotriazole HEVL absorber to stabilize a formulation comprising a polymerizable siloxane component, a hydrophilic N-vinylamide monomer, and TPP.

Provided are a composition for coating a separator, a method of preparing a separator using the same, a separator, and a lithium battery employing the separator. The composition for coating a separator includes a binder including an aqueous cross-linking reactive poly(vinylamide)-based copolymer, a cross-linker, inorganic particles, and water, wherein the poly(vinylamide)-based copolymer includes a repeating unit derived from a vinylamide monomer, and a repeating unit derived from a cross-linking reactive group-containing monomer. The composition for coating a separator may provide a separator having high thermal resistance characteristics.

To provide an energy-polymerizable liquid which can be cured by a single reaction mechanism to form a photoplastic material, and to provide a method for manufacturing the photoplastic material and an article made of the photoplastic material.SOLUTION: Provided is a free radical polymerizable liquid for forming a three-dimensional object. The free radical polymerizable liquid comprises: a reactive oligomer, the reactive oligomer being at least one of (i) a multi-functional methacrylate oligomer, and (ii) a multi-functional acrylate oligomer; and a reactive monofunctional monomer, the reactive monofunctional monomer being at least one of (i) a monofunctional N-vinyl monomer, (ii) a monofunctional vinyl ether monomer, (iii) a monofunctional vinyl ester monomer, (iv) a monofunctional vinylamide monomer, (v) a styrene monomer, (vi) a monofunctional acrylamide monomer, (vii) a multi-functional (meth)acrylate monomer, (viii) a cyanoacrylate monomer, (ix) a monofunctional vinyl carbonate monomer, and (x) a monofunctional acryloyl monomer.SELECTED DRAWING: None

The present invention generally relates to the field of cross-linkable aqueous vinyl polymer dispersions, to a coating composition comprising said cross-linkable aqueous vinyl polymer dispersions; to a paint formulation comprising said cross-linkable aqueous vinyl polymer dispersions; and to an article coated with the coating composition or the paint formulation. In particular, the present invention provides an aqueous vinyl polymer dispersion PD which comprises the following polymers: —1) an aqueous dispersion of a vinyl polymer P1 obtainable by free radical emulsion polymerization of a monomers mixture comprising: a) 5 to 20 wt % acid functional ethylenically unsaturated monomers M1 or precursors thereof; b) 5 to 25 wt % ethylenically unsaturated monomers M2 containing a polyethylene glycol or monoalkoxy polyethylene glycol moiety; c) up to 90 wt % of non-ionic ethylenically unsaturated monomers M3 other than M1 or M2; d) 0 to 10 wt % ethylenically unsaturated monomers M4 with a functional group for cross-linking after film-formation; e) 0 to 10 wt % of at least one chain transfer agent CTA; where the sum of the wt. % of M1+M2+M3+M4+CTA=100 wt %; —2) an aqueous dispersion or solution of a vinyl polymer P2 obtainable by free radical copolymerization of: a) from 25 to 95 wt % of a ethylenically unsaturated monomers M5 selected from the group of N-vinyl amides with general structure (I) where R1 and R2 are alkyl from C1 to C5 and may be connected to form a ring-structure, preferably N-vinyl pyrrolidone or N-vinyl caprolactam; b) from 5 to 75 wt % of non-ionic ethylenically unsaturated monomers M3′ other than M5; c) from 0 to 5 wt % of ethylenically unsaturated monomers M4′ with a functional group for cross-linking after film-formation; d) from 0 to 10 wt % acid functional ethylenically unsaturated monomers M1′ or precursors thereof; e) from 0 to 5 wt % of at least one chain transfer agent CTA′; where the sum of the wt. % of: M5+M3′+M4′+M1′+CTA′=100 wt %; —3) a film-forming vinyl polymer P3 under the form of an aqueous dispersion comprising: i) from 20 to 60 wt % of a water-soluble or water dispersible crosslinkable vinyl oligomer OL obtained by emulsion polymerizing a monomer mixture comprising: 1) at least one acid functional ethylenically unsaturated monomer M1″; 2) at least one ethylenically unsaturated monomer M4″ with functionality for crosslinking upon film-formation, other than M1″; 3) at least one ethylenically unsaturated monomer M3″ other than M1″ and M2″, and 5) optionally, at least one chain transfer agent CTA″, and ii) from 40 to 80 wt % of a high molecular weight vinyl polymer P4 prepared by emulsion polymerizing, in the presence of the water-soluble or water-dispersible crosslinkable vinyl oligomer OL, a monomer mixture comprising: 1) optionally one acid functional ethylenically unsaturated monomer M1′″; 2) optionally one or more ethylenically unsaturated monomers M4″′ with functionality for crosslinking upon film-formation, other than M1′″; 3) at least one ethylenically unsaturated monomer M3′″ other than M1′″ and MT′ and 4) optionally, one or more multifunctional ethylenically unsaturated monomers for pre-crosslinking, M5′″, preferably in an amount less than 5 wt %, —Where the total weight of film-forming vinyl polymer P3=wt. % of the water-soluble or water dispersible crosslinkable vinyl oligomer OL+wt. % of the high molecular weight vinyl polymer P4=i)+ii)=100 wt % and—Where the total weight of the vinyl polymer in the aqueous vinyl polymer dispersion PD=wt. % of the vinyl polymer P1+wt. % of the vinyl polymer P2+wt. % of the film-forming vinyl polymer P3=100 wt %.

This invention discloses a method for preparing cyclohexadienone compounds. The method uses a vinylamide derivative as a starting material and phenyldimethylsilane as a hydrogen source. Through the combined action of an oxidant and a cobalt salt, the reaction occurs in an organic solvent at a temperature of 10-110°C to generate the corresponding cyclohexadienone compound. This invention uses readily available vinylamide derivatives as starting materials and achieves rapid construction of cyclohexadienone compounds in one step by constructing a ring and two chemical bonds. The reaction conditions are mild, the operation is simple, and it has advantages such as readily available reactants, broad substrate applicability, and easy separation of the target product.

Silicone hydrogel contact lens formulations are described herein. The formulation has a silicone component and a silicone-free component. The silicone component comprises two or three compounds represented by a formula 1, a formula 2 or a formula 3. The silicone-free component includes a methacrylate component and an N-vinyl amide component. The methacrylate component is prepared from hydroxybutyl methacrylate (HOB) and isobornyl methacrylate (IBM). And the N-vinyl amide component is prepared from N-vinyl N-methyl acetamide. When compounds of Formula 1 and Formula 2 are present in the formulation in specific ratios to each other, specific amounts of HOB and IBM are provided to achieve specific ratio results in desired silicone hydrogel contact lenses. Silicone hydrogel contact lenses are also described.

The present invention provides a silicone hydrogel contact lens formulation comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer, a triphenylphosphine (TPP), and one or more of an anthraquinone blue colorant, a benzophenone UV absorber, or a benzotriazole HEVL absorber; a silicone hydrogel contact lens formed by polymerizing the silicone hydrogel contact lens formulation; and the use of an anthraquinone blue colorant, a benzophenone UV absorber and / or a benzotriazole HEVL absorber to stabilize a formulation comprising a polymerizable siloxane component, a hydrophilic N-vinyl amide monomer and TPP.

The application provides a water-based well drilling fluid cementing wall stabilizer and a preparation method and application thereof, and comprises the following steps: (1) mixing a first material system comprising a vinylamide, a vinylpyrrolidone, a tannic acid, a carbon fiber and an initiator with a first solvent to obtain a core material; (2) mixing a second material system comprising an emulsifier, a flexible polymer and a curing agent with a second solvent to obtain a shell material; (3) mixing the core material with part of the shell material, and then performing shearing homogenization to obtain a water-in-oil emulsion; and (4) mixing the water-in-oil emulsion with the remaining shell material, and then performing a polycondensation reaction to obtain the cementing wall stabilizer. The cementing wall stabilizer provided by the application is suitable for a water-based well drilling fluid system and has good dispersion stability and high-temperature and high-pressure structural stability.

The invention discloses a glassy indium yttrium oxide modified ternary layered oxide positive electrode material and a preparation method thereof. The preparation method comprises the following steps: (1) mixing and grinding an N-vinyl amide polymer, indium acetate, yttrium acetate and a ternary layered oxide positive electrode material to form uniform mixed powder; (2) mixing the mixed powder with ultrapure water to form turbid liquid, and then performing ultrasonic dispersion; (3) heating and evaporating the sample subjected to ultrasonic dispersion; (4) sintering the sample dried by distillation, and naturally cooling to room temperature after sintering to obtain a sintered product; and (5) grinding, washing and drying the sintered product, and then grinding and sieving again to obtain a final product. The inner core structure of the obtained positive electrode material is a ternary layered oxide positive electrode material, and the outer layer is a glassy indium yttrium oxide coating layer obtained by in-situ derivation. According to the method, the problems of capacity stability and voltage attenuation in the cyclic process of the ternary layered oxide positive electrode material are solved, the rate capability of the material is improved, and the method is suitable for large-scale production.

The invention relates to the technical field of amide compounds, and discloses a method for preparing ether-group-containing amide and N-vinyl amide, and the method for preparing ether-group-containing amide comprises the following steps: (1) contacting ethanolamine with a substance containing two ester groups, and carrying out amine-ester exchange reaction to obtain a reaction solution; wherein the substance containing two ester groups has a structure as shown in a formula (1); (2) in the presence of a catalyst, carrying out etherification reaction on the reaction liquid obtained in the step (1); wherein n is 1-5, and R1 and R2 are respectively and independently H or C1-C6 alkyl. The ether group-containing amide is prepared by adopting a one-pot method, separation and purification of an intermediate product are not involved, and the operation is simple. # imgabs0 #

Proposed is a copolymer composition including a copolymer and a cross-linking agent, in which the copolymer includes 30% or more to 80% or less by weight of at least one type of monomer units selected from the group consisting of acrylate-based monomer units, acrylonitrile-based monomer units, vinylamide-based monomer units, and acrylamide-based monomer units and 20% or more to 70% or less by weight of vinylpyrrolidone monomer units, based on 100% by weight of the copolymer. In addition, a slurry composition, a separator, and a secondary battery that contains the polymer composition are proposed.