128 results about "Polymethacrylic Acids" patented technology

The invention provides an adsorption material and a preparation method and application thereof, the adsorption material comprises a carrier and an endotoxin affinity binding ligand, the endotoxin affinity binding ligand comprises a recombinant C factor protein, and the carrier and the recombinant C factor protein are connected through a spacer arm; wherein the carrier comprises at least one of resin, chitosan, cellulose, agarose and glucan; the spacer arm comprises at least one of modified polyethylene glycol, polyvinyl pyrrolidone, polymethylacrylic acid-2-hydroxyethyl ester, polyvinyl alcohol, polyacrylic acid, hexamethylenediamine, divinyl sulfone and glutaraldehyde, and at least one end of the modified polyethylene glycol is provided with carboxyl, aldehyde or amino. The adsorption material provided by the invention can efficiently adsorb endotoxin, has the characteristics of low toxicity risk and excellent blood compatibility, and can improve the safety of blood purification.

The invention relates to a preparation method of a water electrolysis hydrogen production composite electrode based on a zwitterionic polymer binder. According to the method, a traditional ionic binder Nafion is replaced with a zwitterionic polymer polysulfobetaine methacrylate, an electrode-electrolyte interface is optimized through a unique electrically neutral hydration layer structure, the rapid desorption behavior of bubbles is enhanced, and efficient transmission of reaction ions is also promoted; and regulating and controlling the mass ratio of the PSBMA binder to the catalyst by using a spraying process. The invention aims to overcome the defects of high cost, insufficient mass transfer and poor interface stability of the existing Nafion binder, and provides the composite electrode taking PSBMA as the binder and the preparation method of the composite electrode, and the provided composite electrode is simple in preparation process and controllable in cost, and has good popularization and application prospects.

The application discloses a kind of color fluorescent particles for electrophoretic display, it is related to the field of photoelectric display, color fluorescent particle is core-shell structure, color fluorescent particle includes successively from inside to outside: core, intermediate layer and shell layer;Core is pigment unit, intermediate layer is quantum dot layer coated on the surface of pigment particle, shell layer includes high molecular polymer selected from one or more of polymethyl methacrylate lauryl, polymethyl methacrylate, and is constituted, shell layer is coated on the surface of intermediate layer;Color fluorescent particle contains intrinsic base color presented by pigment unit and compensation fluorescence excited by quantum dot layer receiving light;Compensation fluorescence is compatible with the color of intrinsic base color.In addition, the application also provides the preparation process of color fluorescent particle.The color fluorescent electrophoretic particle provided by the application is pure and full of color, and the color is more brilliant under ultraviolet excitation.

The invention provides an oil-in-water emulsified cosmetic containing (a) an aqueous medium,(b) two or more higher fatty acids of 12 to 24 carbon atoms and alkali metal salts thereof,(c) at least one compound selected from the group consisting of monoalkyl glyceryl ethers having an alkyl group of 12 to 24 carbon atoms and monoalkenyl glyceryl ethers having an alkenyl group of 12 to 24 carbon atoms,(d) a thickener comprising (d-1) a polysaccharide derived from a microorganism and (d-2) a (meth)acrylic-based polymer selected from the group consisting of a poly(meth)acrylic acid salt and a polymer including at least one selected from the group consisting of a (meth)acrylic acid ester, a (meth)acryloylalkyltaurine and a salt thereof as a structural unit, and(e) a nonionic surfactant.

COMPOSITION COMPRISING A NEUTRALIZED POLY(METH)ACRYLIC ACID POLYMER The present invention relates to a composition comprising: (a) at least one neutralized poly(meth)acrylic acid polymer; (b) at least one organic acid or salt thereof; and (c) water, wherein the amount of the neutralized poly(meth)acrylic acid polymer (a) is 0.5% by weight or more, relative to the total weight of the composition. The composition according to the present invention may exhibit a sorbet-like appearance and a textural transformation (from a gel / cream texture to a liquid texture) during application and an absence of a sticky sensation after application. Figure for abstract: none

The application relates to the technical field of sewage treatment, and provides a magnetic multi-effect organic-inorganic composite amphiphilic particle as well as a preparation method and application thereof. The magnetic multi-effect organic-inorganic composite amphiphilic particle comprises a magnetic Fe3O4 particle core and a silica shell layer which are separated from each other; the outer surface of the silica shell layer comprises a hydrophilic part and a hydrophobic part; the hydrophilic part is obtained by modifying the outer surface of the silica shell layer with a silane coupling agent containing amino groups so that the amino groups are grafted on the outer surface of the silica shell layer; the inner surface of the silica shell layer and the surface of the magnetic Fe3O4 particle core are grafted with poly (dimethylaminoethyl methacrylate); and the silica shell layer has a micro-pore structure. The magnetic multi-effect organic-inorganic composite amphiphilic particle provided by the application has excellent emulsifying performance and can realize oil-water separation; meanwhile, the magnetic multi-effect organic-inorganic composite amphiphilic particle also has selective adsorption characteristics and can efficiently treat oil-containing sewage containing partially hydrolyzed polyacrylamide in one step.

The invention provides an anti-cancer medicine and food homologous composition and a preparation method thereof. The composition is prepared from the following components in parts by weight: 5 to 10 parts of lipoic acid, 30 to 50 parts of nano curcumin, 2 to 7 parts of berberine, 50 to 100 parts of beta-glucan, 15 to 35 parts of polymethylacrylic acid, 15 to 25 parts of herba hedyotidis diffusae extract, 7 to 15 parts of scutellaria barbata baicalein, 25 to 55 parts of astragalus polysaccharide, 8 to 18 parts of coix seed ester and 10 to 15 parts of cordyceps cicadae. Through a space-time targeting synergistic release mechanism of a bionic nanocellulose skeleton and in combination with pH / enzyme double-response intelligent regulation and control, three-stage precise synergistic effects of oxidation resistance, apoptosis promotion and immune activation are realized, the limitation that a traditional medicinal and edible composition is poor in targeting property, low in synergistic efficiency and uncontrollable in toxicity is broken through, and the medicinal and edible composition has a broad application prospect. High-efficiency and low-toxicity tumor multi-channel synergistic intervention is achieved in a natural component system for the first time, and the actual effect of the whole medicinal and edible composition on cancer and swelling resistance is improved.

The present application relates to sewage treatment technical field, provide a kind of magnetic multi-effect polymer inorganic hybrid amphiphilic particle and its preparation method and application.The particle includes magnetic Fe3O4 Particle core and the shell layer separated from the shell of the magnetic Fe3O4 Particle core, the shell layer is the hybrid shell layer of silica / titanium dioxide with micro-pore structure;The inner surface of the shell layer and the surface of magnetic Fe3O4 Particle core are grafted with poly (diethylaminoethyl methacrylate);The outer surface of the shell layer includes hydrophilic part and hydrophobic part, the hydrophilic part has amino group, the amino group is grafted polydopamine, and gallic acid is compounded on the polydopamine.The magnetic multi-effect polymer inorganic hybrid amphiphilic particle provided by the present application has excellent emulsifying performance, can realize oil-water separation;Meanwhile, it can selectively adsorb part of hydrolyzed polyacrylamide, and can efficiently treat oil-containing sewage containing part of hydrolyzed polyacrylamide in one step.

A method for preparing an exhaust gas purifying catalytic device, comprising: providing a catalytic promoter loaded with a precious metal, and providing an oxide carrier; pulping together the oxide carrier, the catalytic promoter loaded with the precious metal, a binder, a functional regulator and water, to obtain a catalyst slurry; placing the catalyst slurry on a ceramic carrier, and obtaining an exhaust gas purifying catalytic device after the catalyst slurry is dried. The functional regulator comprises at least one of polyhydroxyethyl acrylate and polyhydroxyethyl methacrylate.

The application belongs to the technical field of sodium ion batteries, and particularly relates to a binder composition, a sodium ion battery positive electrode slurry and a sodium ion battery. The binder composition comprises 0.5-100% and 0-99.5% of a first binder and a second binder by mass percentage, the first binder is one or more of polyacrylic acid, polymethacrylic acid, poly-methyl-vinyl-ether-copoly-maleic acid, and the second binder is one or more of polyvinylidene fluoride, polyacrylonitrile-based binder, polyurethane-based binder and polyimide-based binder. A high-molecular polymer containing a carboxyl group (-COOH) is used as a binder composition component to prepare the sodium ion battery positive electrode slurry. The carboxyl group can be neutralized with alkaline substances in the positive active material of the sodium ion battery positive electrode slurry, so as to ensure the uniformity and fluidity of the positive electrode slurry, to obtain a uniform sodium ion battery positive electrode sheet, and to obtain a sodium ion battery with good electrochemical stability.

The invention discloses a radiation-resistant antifouling paint and a preparation method thereof. The radiation-resistant antifouling paint comprises the following components in percentage by mass: 20-30% of radiation-resistant antifouling resin; 4-10% of a dissolution auxiliary agent; 10-20% of a radiation-resistant filler; 30-50% of an antifouling agent; 0.5%-2% of a surfactant; 0.5-2% of an anti-settling auxiliary agent; and 5-15% of a solvent. According to the radiation-resistant antifouling coating disclosed by the invention, through a benzene ring structure in a resin structure and a shielding effect of mica and flake graphite powder in the coating, the risk of paint film pulverization, cracking and failure caused by radiation can be effectively avoided, and under the stable hydrolysis effect of the main chain degradation type polysilane methacrylate self-polishing resin in seawater, the radiation-resistant antifouling coating has the advantages of good anti-fouling effect and good anti-fouling effect. The antifouling agent can be released continuously and stably, long-term antifouling performance is achieved, and normal operation of underwater equipment and ships is guaranteed.

The present disclosure provides micelles comprising a plurality of block copolymers, the micelles comprising: (i) a core comprising at least a portion of a poly(alkyl acrylate) block of one or more block copolymers; and (ii) an outer layer comprising at least a portion of a poly(aryl acrylate) block or a poly(aryl methacrylate) block of one or more block copolymers. The present disclosure also includes polymer compositions, polymer films, and devices (e.g., orthodontic appliances) comprising the same. Methods of making and using the micelles, polymer compositions, polymer films, and devices (e.g., orthodontic appliances) are also disclosed. Methods of producing polymer compositions and methods of using the compositions to make (e.g., by 3D printing) medical devices (e.g., orthodontic appliances) are also provided herein.

The invention belongs to the technical field of ceramic material preparation, and provides an aluminum oxide granulation powder composition and an aluminum oxide granulation powder preparation method, the aluminum oxide granulation powder composition comprises the following components by weight: 0.1-1 part of a dispersant; 100 parts of alumina powder; 5 to 10 parts of a binder; 0.3 to 1 part of a thickening agent; 0.1 to 0.5 part of a lubricant; the binder is selected from at least one of polyacrylic resin or polymethylacrylic acid resin, and the dispersing agent is ammonium polyacrylate.

The present application relates to fluorescent nanoparticles based on fluorinated zwitterionic random copolymer and its preparation method and application, the fluorescent nanoparticles include the single chain nanoparticles formed by poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine, the molecular chain end of the poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine is connected with ACQ type group selected from anthryl, perylene imide group and pyrene base or AIE type group selected from tetraphenyl ethylene base, carbazole base and cyanine-containing triphenyl ethylene group.The fluorescent nanoparticles based on the poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine of the present application that terminal fluorescent group is terminated, has excellent controllable fluorescent luminescence performance.It is considered that the single chain nanoparticles have isolation effect, avoid the fluorescence quenching effect of ACQ type group, and can provide limited microenvironment for AIE type group, ensure the fluorescent luminescence performance of nanoparticles.

The invention discloses a preparation method of a long-acting light functional inorganic oxide additive for an agricultural film, which comprises the following steps: mixing inorganic oxide and water to obtain slurry A, adding a polymethylacrylic acid dispersing agent into the slurry A, grinding in a stirring mill to obtain slurry B, supplementing the dispersing agent into the slurry B, sanding until the particle size reaches 100-300 nm to obtain slurry C, and drying to obtain the long-acting light functional inorganic oxide additive for the agricultural film. Adding a silane coupling agent into the slurry C, performing stirring reaction in a stirring mill, then performing drying to obtain modified powder, mixing the powder with polyethylene, and performing melt extrusion granulation to obtain an additive; according to the invention, a physical-chemical hybrid interface layer is constructed on the surface of an inorganic oxide by adding a polymethylacrylic acid dispersing agent and then adding a silane coupling agent, so that the particle size of the inorganic oxide is reduced, and the interface bonding force with polyethylene is enhanced through a covalent bond; the agricultural film prepared from the modified inorganic oxide additive can maintain the light function characteristic of inorganic oxide, and the light transmittance of the agricultural film prepared from the modified inorganic oxide additive is superior to that of an agricultural film prepared from an unmodified inorganic oxide additive.

The application relates to the sewage treatment technical field, and provides a magnetic multi-effect dual-parent hybrid particle as well as a preparation method and application thereof. The magnetic multi-effect dual-parent hybrid particle comprises a core-shell separated magnetic Fe3O4 particle core and a shell layer, the shell layer is a silica / titanium dioxide hybrid shell layer with a micro-pore structure, the outer surface of the shell layer comprises a hydrophilic part and a hydrophobic part, and the inner surface of the shell layer and the surface of the magnetic Fe3O4 particle core are grafted with poly (diethylaminoethyl methacrylate). The magnetic multi-effect dual-parent hybrid particle provided by the application has excellent emulsifying performance, can realize oil-water separation, can selectively adsorb partially hydrolyzed polyacrylamide, and can efficiently treat oil-containing sewage containing partially hydrolyzed polyacrylamide in one step.

The application discloses a tissue adhesive and a preparation method and application thereof, and belongs to the field of medical materials.The tissue adhesive comprises a copolymer composed of at least one of acrylic acid and methacrylic acid and a hydrochloride salt, the hydrochloride salt is at least one of 2-aminoethyl methacrylic acid ester hydrochloride and 2-aminoethyl acrylic acid ester hydrochloride, and the tissue adhesive can further comprise a crosslinked polymer formed by crosslinking at least one of polyacrylic acid and polymethacrylic acid with a polymer, and the polymer is formed by polymerization of the hydrochloride salt and a zwitterionic betaine.The copolymer can quickly absorb moisture on a wet tissue surface to form a gel and adhere to the tissue surface, so that a soft tissue wound, especially a low-pH microenvironment soft tissue wound, is closed; and the crosslinked polymer can be firmly combined on the surface of the copolymer and quickly form an anti-adhesion gel, which effectively prevents the surrounding tissue from being adhered after an operation as a physical barrier.

The invention discloses a mirror surface antifogging material, which is prepared from the following raw materials: a perfluoro solvent, perfluoropolyether and an adhesion auxiliary agent, and the adhesion auxiliary agent is polymethyl methacrylate and / or poly (hydroxyethyl methacrylate). The mirror surface anti-fog material is suitable for visual reflectors such as glass mirror surfaces, silver mirrors and aluminum mirrors, a transparent nano hydrophobic film can be formed on the mirror surfaces through simple spraying at normal temperature, the light transmittance of the formed film layer is high, and the mirror surface anti-fog material has the advantages of clear vision, long anti-fog time, fast film forming, no peculiar smell, simple operation and the like, and is suitable for popularization and application. The anti-fog mirror can be applied to articles such as bathroom mirrors, cosmetic mirrors, glasses and the like in daily life.

The invention relates to the technical field of hemostatic materials, and provides chitosan-based in-situ self-gel powder as well as a preparation method and application thereof. The chitosan-based in-situ self-gel powder provided by the invention comprises modified chitosan-based powder and oxidized polysaccharide powder, the modified chitosan-based powder is prepared from poly (3-sulfopropyl methacrylate potassium salt) grafted chitosan and poly [2-(methylacryloyloxy)-ethyltrimethyl ammonium chloride] grafted chitosan. The chitosan-based in-situ self-gelling powder provided by the invention has an in-situ self-gelling function, can quickly absorb water to realize self-gelling under the triggering of body fluid or blood, has excellent wet tissue adhesion performance, is high in water absorption speed and good in hemostatic effect, is not influenced by a normal blood coagulation mechanism in a hemostatic process, and has good postoperative anti-adhesion performance; no chemical cross-linking agent is used in the preparation process of the chitosan-based in-situ self-gel powder, the chitosan-based in-situ self-gel powder has good biocompatibility and biodegradability, raw materials are easy to obtain, synthesis is simple, and the chitosan-based in-situ self-gel powder is economical and safe.

To provide a stable composition capable of providing good spreadability during application and smoothness after application.SOLUTION: A composition comprising: (a) at least one polyglutamic acid or salt thereof; (b) at least one neutralized poly (meth) acrylic acid polymer; and (c) at least one hydrophobic inorganic filler.SELECTED DRAWING: None

This invention relates to the field of polylactic acid (PLLA) technology, specifically to a PSMA / PDLA-modified PLLA composite film and its preparation method. The PSMA / PDLA-modified PLLA composite film of this invention comprises a blend of L-polylactic acid (LMA) and a melt blend of octadecyl methacrylate (OMA) and D-polylactic acid (DMA). The OMA / DMA melt blend is obtained by melt blending OMA, DMA, and an initiator. By introducing the OMA / DMA blend, the SMA homopolymer forms a microphase-separated structure with PLLA. The SMA homopolymer forms a soft phase region, improving the toughness of PLLA. Simultaneously, the stereocomplex formed by the PDLA and PLLA molecular chains "anchors" the PLLA matrix to the soft phase of the SMA homopolymer, thereby improving mechanical properties.

This invention belongs to the field of casting binder technology, and particularly relates to an environmentally friendly water glass casting binder with anti-aging function. The raw material composition of this invention includes: sodium water glass, lithium water glass, polymethyl methacrylate, and lithium carbonate, which enables: 1. Polymethyl methacrylate combined with lithium carbonate to provide more hydrogen bonds to the water glass binder system, changing the surface potential energy and solvation ability of the water glass, improving the stability of the water glass, and thus obtaining better "anti-aging" ability; 2. Lithium carbonate itself has the effect of a dispersant, and combined with water glass at a specific modulus, it can further improve the dispersibility of the sand mold; 3. Polymethyl methacrylate itself has basic bonding strength, and by limiting the modulus of the water glass, it can also appropriately improve the bonding strength of the entire binder; 4. The amount of organic polymethyl methacrylate added to this binder is sufficiently small, ensuring that the binder has sufficient safety and environmental protection advantages.

The present invention addresses the problem of providing an anaerobic adhesive composition for an electromagnetic steel sheet, said anaerobic adhesive composition having excellent peel strength and more particularly excellent cohesion disruption resistance. [Solution] An anaerobic adhesive composition for an electromagnetic steel sheet, characterized by comprising: 100 parts by weight of a polymerizable (meth) acrylic monomer (A) containing (a-1) a hydroxyalkyl (meth) acrylate and (a-2) a (meth) acrylic acid as main components; 1 part by weight to 15 parts by weight; 0.01 to 10 parts by weight of a hardening accelerator (C); and 0.1-30 parts by weight of a poly (meth) alkyl acrylate (D).

A mixture contains at least one amino-regulated polyether block amide (PEBA) and at least one poly(meth)acrylate selected from poly(meth)acrylimides, polyalkyl(meth)acrylates, and mixtures thereof. The mass ratio of PEBA to poly(meth)acrylate is 95:5 to 60:40. The polyalkyl(meth)acrylate contains 80% by weight to 99% by weight of methyl methacrylate (MMA) units and 1% by weight to 20% by weight of C1-C10-alkyl acrylate units, based on the total weight of polyalkyl(meth)acrylate. The mixture can be processed to give foamed mouldings. The mouldings can be used in footwear soles, stud material, insulation or insulating material, damping components, lightweight components, or in a sandwich structure.

The application provides a high drug loading slow-release embolism microsphere with rough surface. The microsphere is composed of a double-layer core-shell structure, the core layer comprises cross-linked poly-N-isopropyl acrylamide, a polysiloxane framework and nano-clay, and the shell layer comprises cross-linked polymethyl methacrylate-N, N-dimethyl amine ethyl ester, octavinyl-POSS nanoparticles and polylactic acid macromolecules; the rough structure on the surface of the microsphere can promote the rapid and stable embolism of the microsphere in blood vessels, the core layer and the shell layer can simultaneously load a large amount of different types of anticancer drugs, and the slow-release can be sustained for 60 days, and the microsphere has significant potential in the embolism treatment field.

The invention discloses a dispersing agent and a preparation method thereof as well as negative electrode slurry and application thereof, and relates to the technical field of dispersing agents. The dispersing agent disclosed by the invention is prepared from the following components: a styrene-N-vinyl pyrrolidone-vinylamine segmented copolymer and poly (methacrylic acid polyethylene glycol ester) laurate; the mass ratio of the styrene-N-vinyl pyrrolidone vinyl amine segmented copolymer to the poly (methacrylic acid polyethylene glycol ester) laurate is (3 to 6): 1. The steric hindrance effect of the styrene-N-vinyl pyrrolidone-vinylamine block copolymer and the dynamic wettability of the poly (methacrylic acid polyethylene glycol ester) laurate cooperate with each other, the dispersing and wetting effects are achieved at the same time, the dispersing performance is remarkably improved, and the obtained dispersing agent is suitable for being used in negative electrode slurry and can be used as a negative electrode material. The dispersion stability of the sizing material is improved.

Fluorescent core-shell particles comprising a core, a first shell disposed on a surface of the core, and a second shell disposed on a surface of the first shell, wherein the core comprises a first polymer selected from a group consisting of a poly(alkyl acrylate), a poly(alkyl methacrylate), and copolymers thereof, the first shell comprises a first polyamine and a second polymer selected from a group consisting of a poly(alkyl acrylate), a poly(alkyl methacrylate), and copolymers thereof, and the second shell comprises a second polyamine and a plurality of carbon dots, wherein at least a portion of the first polyamine is grafted to the second polymer; methods of use and preparation thereof.

This invention discloses a red pigment paste for color photoresist and its preparation method, relating to the field of photoresist technology. The red pigment paste for photoresist comprises the following materials: modified pigment red 177, propylene glycol methyl ether acetate, poly(methacrylic acid-co-acrylate) copolymer, acrylate resin, styrene-maleic anhydride copolymer, and antioxidant. This invention, by adding modified pigment red 177, works synergistically with the poly(methacrylic acid-co-acrylate) copolymer and polydimethyldiallyl ammonium chloride to inhibit pigment particle agglomeration, ensuring uniform dispersion of the pigment in the propylene glycol methyl ether acetate solvent, thus guaranteeing uniform and fine dispersion of the pigment paste. The antioxidant in this invention includes β-cyclodextrin, which can coat pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and UV-327, improving the compatibility of the pigment paste system and extending the storage life of the pigment paste.

The present application relates to sewage treatment technical field, provide a kind of magnetic multi-effect polymer inorganic composite amphiphilic particle and its preparation method and application.It includes core-shell separation magnetic Fe3O4 Particle core and silica shell, and the silica shell exists micro-pore structure;The outer surface of the silica shell includes hydrophilic part and hydrophobic part, the hydrophilic part has amino, the amino grafts polydopamine, and the polydopamine is combined with gallic acid;The inner surface of the silica shell and the surface of the magnetic Fe3O4 Particle core graft poly methacrylic acid diethylaminoethyl ester.The magnetic multi-effect polymer inorganic composite amphiphilic particle provided by the present application has excellent emulsifying performance, can realize oil-water separation;It also has selective adsorption characteristics, and can efficiently treat oil-containing wastewater containing partially hydrolyzed polyacrylamide in one step.

The invention relates to the field of metal heat treatment quenching oil, and discloses cooling speed stable type overspeed quenching oil and a preparation method thereof. The cooling speed stable type overspeed quenching oil is prepared from the following raw materials in parts by weight: 85-95 parts of base oil, 2-4 parts of a cooling accelerant, 2-3 parts of a stabilizer, 1-3 parts of a dispersing agent, 0.5-1.5 parts of an antioxidant and 0.5-1 part of a brightener, the stabilizer is composed of ricinoleic acid polyester and polyalkyl methacrylate, and the dispersing agent is composed of stearoyl methacrylate and polyisobutylene succinimide. The overspeed quenching oil is used under the conditions of long-term high temperature and the like, has better quenching cooling stability, is not easy to deteriorate, and is suitable for industrial continuous heat treatment operation.