45 results about "Antimicrobial polymer" patented technology

Methods of and apparatuses for the manufacture of biomimetic physical antimicrobial polymer foils are disclosed. An example method of manufacturing includes providing a substrate. The method additionally includes depositing an aluminum-containing layer on the substrate. The method yet further includes anodizing an exposed surface of the aluminum-containing layer in a first bath so as to form a plurality of pores in the exposed surface of the aluminum-containing layer. Moreover, the method includes immersing the exposed surface of the aluminum-containing layer in a second bath, further etching the plurality of pores in the exposed surface of the aluminum-containing layer. Methods also include formation of templated polypropylene and cellulose films.

An antibacterial polymer having a molecular weight above a certain level, which is highly miscible with other polymers compared to a monomolecular type antibacterial agent and can be added during the melt extrusion process. Further the antibacterial polymer has the advantage of exhibiting excellent antibacterial properties against Gram-negative bacteria and does not elute over time.

The invention relates to an odorless antibacterial polymer-based composite material and a preparation method thereof. The odorless antibacterial polymer-based composite material comprises the following components in parts by weight: 20-30 parts of modified water-borne epoxy resin, 5-20 parts of a water-borne epoxy resin curing agent, 5-10 parts of a dispersing agent, 5-10 parts of a defoaming agent, 5-10 parts of a flatting agent, 5-10 parts of a coalescing agent, 5-10 parts of modified glass fibers, 20-30 parts of filler, 5-10 parts of an antibacterial agent, 3-8 parts of an antioxidant and 20-30 parts of water. The coating has excellent properties, such as good adhesiveness, corrosion resistance, good mechanical properties, good antibacterial property, good weather resistance, water resistance and the like. And the modified tetrapod-like zinc oxide whisker is compounded with the ethylene bis-dithiocarbamic acid zinc, so that the problem of poor compatibility with the odorless antibacterial polymer-based composite material when the modified tetrapod-like zinc oxide is independently added is solved, the surface hardness of the odorless antibacterial polymer-based composite material is increased, and the service life of the odorless antibacterial polymer-based composite material is prolonged.

The present application discloses an antimicrobial nylon material, along with its preparation method and application. The present application relates to the technical field of antimicrobial polymer materials and addresses the limitations of existing antimicrobial nylon 6, particularly its insufficient antimicrobial efficacy and challenges in scalability for industrial production. In the present application, a seven-membered cyclic lysine-derived monomer is copolymerized with a lactam via hydrolytic copolymerization using water as an initiator, yielding a copolyamide. The resulting copolyamide is then subjected to a protonation reaction through heating and stirring in an acidic solution, followed by purification to obtain the final antimicrobial nylon material. The seven-membered cyclic lysine-derived monomer may be an unprotected cyclic lysine monomer, a mono-protected cyclic lysine monomer, or a salt form cyclic lysine monomer. The present invention exhibits broad applicability in antimicrobial-sensitive fields such as textiles, plates, pipes, packages or panels.

The present invention relates to the field of polymer materials. Disclosed are an isobutylene-based cationic salt ionic polymer, a preparation method therefor, and the use thereof. The polymer comprises a structure represented by formula (2) and / or formula (3), and optionally, a structural unit A represented by formula (1), a structural unit B represented by formula (4) and a structural unit C represented by formula (5), Q being formula (6), formula (7), formula (8) or formula (9). The side group and the main chain of the polymer both contain cationic salt groups, so that the polymer has a high polyionic degree and thus can be used as an antibacterial agent for preparing antibacterial polymer materials, such as antibacterial plastics, antibacterial rubber, antibacterial fibers and antibacterial coatings.

Disclosed herein are PEG-maximin H5 peptide conjugates and methods for using the same in the treatment or prevention of biofilms and biofouling.

The present invention provides an antibacterial structure comprising: a polymeric support layer carrying an antibacterial component; and an antibacterial polymeric layer applied onto the support layer. The antibacterial structure according to the present invention exhibits an excellent antibacterial effect, shows a contact angle of 150° or higher with a solvent even if the antibacterial component is carried, and has antifouling properties.

Antibacterial compositions, such as antibacterial masterbatches, powders, liquid dispersions, may include a mixture of at least one antibacterial metal compound and at least one synergistic compound. For example, the antibacterial composition may include at least one antibacterial metal compound and a boron compound, a mixture of powders, or a liquid dispersion blended into a masterbatch. The composition may further include at least one pH adjuvant that creates an acidic environment inside or outside the composition. It has been surprisingly found that these components produce a synergistic relationship within the composition that provides a more tailored antimicrobial polymer composition or article.

The application provides a guanidine-containing antibacterial polymer, a preparation method and application thereof, and has the structure shown in the following formula I. When a nanofiber membrane prepared from the guanidine-containing antibacterial polymer is used to filter PM in air, the nanofiber membrane has good filtering effect, and has good bacteriostatic effect on staphylococcus aureus and escherichia coli, and even has better bacteriostatic effect when stored for a long time.

The present disclosure relates to an antibacterial polymer composition, more specifically, to an antibacterial polymer composition enabling preparation of a coating layer exhibiting excellent antibacterial property. The antibacterial polymer composition may use a polymer including a specific number of repeat units as an antibacterial agent. Accordingly, unlike coating compositions using antibacterial monomers / antibacterial oligomers, elution of an antibacterial agent from the coating layer may be prevented even after time passes, and thus, it can continuously exhibit antibacterial property, and yet, is difficult to be absorbed in human body.

The present application relates to a kind of odorless antibacterial polymer-based composite and its preparation method.The odorless antibacterial polymer-based composite includes the following components, by weight parts:20~30 parts modified waterborne epoxy resin, 5~20 parts waterborne epoxy resin curing agent, 5~10 parts dispersing agent, 5~10 parts defoaming agent, 5~10 parts leveling agent, 5~10 parts film forming aid, 5~10 parts modified glass fiber, 20~30 parts filler, 5~10 parts antibacterial agent, 3~8 parts antioxidant, 20~30 parts water.The present application has excellent performance, such as good adhesion, corrosion resistance, good mechanical properties, good antibacterial property, good weather resistance, water resistance, etc.Because modified four acicular zinc oxide whisker is compounded with zinc ethylene bisdithiocarbamate, the problem of poor compatibility with odorless antibacterial polymer-based composite when modified four acicular zinc oxide is added alone is also changed, and the surface hardness is also increased, thereby increasing the service life.

The invention "Manufacturing an antibacterial nanocomposite coating based on water-based polyurethane / double hydroxide layer reinforced with an antimicrobial copolymer with the ability to prevent bacterial growth" relates to the field of the medical industry, coatings and coverings; and also relates to the field of medical equipment for the production of antibacterial polymer nanocomposites that inhibit bacterial growth. This nanocomposite coating consists of three different layers with antibacterial properties, each layer performing a different function in destroying bacteria. The first layer uses water-based polyurethane modified with chitosan and polyvinyl alcohol; the second layer uses layered double hydroxide modified with the antibacterial agent cetyltrimethylammonium bromide (cetolone); and finally, the third layer uses an antimicrobial polypropylene-ethylene copolymer (PP-R), which are mixed together to form an antibacterial nanocomposite coating.

This invention relates to the field of medical polymer materials technology, specifically disclosing an antibacterial and antifouling medical coating material and its preparation method. The medical coating material comprises raw materials: a hydrophilic monomer, a fluorinated low surface energy monomer, an antibacterial polymer, a crosslinking agent, a photoinitiator, and a mixed solvent. The antibacterial polymer is obtained by reacting ε-polylysine sequentially with glycidyl methacrylate, 1-bromododecane, and hyaluronic acid oligomers. This invention utilizes in-situ copolymerization cured by ultraviolet light to covalently integrate the functional components into a chemically crosslinked polymer network. The resulting coating surface is highly hydrophilic, effectively resisting non-specific adhesion of proteins and bacteria. It also exhibits specific enzyme responsiveness, displaying low activity and high biocompatibility under normal physiological conditions, but being activated in a microenvironment rich in hyaluronidase caused by bacterial infection, demonstrating a highly efficient bactericidal ability exceeding 99.5% against Staphylococcus aureus and Escherichia coli.

The present invention discloses an anti-biofouling ultrafiltration membrane containing a natural antibacterial material derivative, and its preparation method and application. The preparation method of the anti-biofouling ultrafiltration membrane of the present invention is as follows: (1) synthesizing an antibacterial material capsaicin derivative and transforming the membrane matrix through atom transfer radical polymerization (ATRP); (2) combining the capsaicin derivative with the transformed membrane matrix through an esterification reaction to obtain an antibacterial polymer; (3) subjecting the above polymer to non-solvent induced phase separation (NIPS) to prepare an anti-biofouling ultrafiltration membrane. The process of the present invention is simple, easy to operate, and cost-controlled, and can achieve large-scale industrial production. The anti-biofouling ultrafiltration membrane prepared by the present invention uses a natural antibacterial material derivative. While ensuring safety and friendliness to the environment and humans, it exhibits excellent ability to resist the growth and proliferation of microorganisms on the membrane surface and has good application prospects in water treatment processes.

The present invention relates to the field of polymeric materials and discloses an isobutylene-based cation salt ionic polymer, and its preparation and use. The polymer comprises a structure represented by formula (2) and / or formula (3), optionally including a structural unit A having a structure represented by formula (1), a structural unit B having a structure represented by formula (4), and a structural unit C having a structure represented by formula (5). By containing cation salt functional groups in both the side groups and the main chain of the polymer, the polymer has a high degree of polyionization and can be used as an antibacterial agent to prepare antibacterial polymeric materials such as antibacterial plastics, antibacterial rubber, antibacterial fibers, and antibacterial paints. [Formula 1] TIFF2025535581000053.tif68169 (Q is [chemical 2] TIFF2025535581000054.tif33169 )

The invention discloses a hydrophilic antifogging film which comprises a base material layer and a hydrophilic antifogging layer which are stacked, and the hydrophilic antifogging layer is formed by coating the surface of the base material layer with hydrophilic antifogging coating liquid and carrying out thermocuring. The hydrophilic antifogging coating liquid comprises 1-6 parts of an antibacterial polymer, 7-17 parts of polyvinyl alcohol, 1-3 parts of a silane coupling agent, 0.05-0.2 part of a cross-linking agent, 0.02-0.1 part of a curing agent, 1-4 parts of an auxiliary agent and 80-90 parts of deionized water; the antibacterial polymer is obtained by carrying out protonation reaction on a prepolymer obtained by reacting dimethylaminoethyl methacrylate and acrylic acid and 1-bromo-n-alkane; and the carbon chain length of alkane in the 1-bromo-n-alkane is 7-12. The antibacterial polymer and the polyvinyl alcohol are compounded, so that the hydrophilic anti-fog layer is endowed with good antibacterial property, antifouling property and wear resistance; the crosslinking agent and the curing agent are combined, so that the polymerization crosslinking density of the hydrophilic anti-fog layer is improved, and the durability, the wear resistance and the adhesive force of the anti-fog function are further improved.

The present application provides an exosome-integrated antimicrobial polymer material and its preparation method, belonging to the field of intelligent biomimetic materials. The method comprises: introducing a benzimide bond into the molecular structure of a polylysine-chitosan copolymer to obtain a first copolymer; covalently coupling D-glutamic acid and electrostatically adsorbing a lipoteichoic acid-binding peptide to obtain a second copolymer; mixing a phosphate buffer solution of aldehyded methylcellulose and a phosphate buffer solution of amino-modified chitosan to obtain a first mixture; adding a mixture of protocatechualdehyde and FeCl3 solution to the first mixture to obtain a second mixture; and adding the second copolymer, placental mesenchymal stem cell exosomes, and Ag@rGO nanoparticles to the second mixture under stirring, and allowing the mixture to stand to obtain the exosome-integrated antimicrobial polymer material. This method simultaneously improves the antimicrobial, repair, mechanical, and environmental responsiveness of the exosome-integrated antimicrobial polymer material.

The present disclosure relates to an antibacterial polymer composition, and more particularly, to an antibacterial polymer composition that enables the preparation of a coating layer exhibiting excellent antibacterial properties.

The present invention relates to an antibacterial polymer composition containing a polymer compound in which a cationic monomer and a fluorine-based acrylic monomer are graft-polymerized in a fluorine-based copolymer. A fluorine-based polymer composition according to the present specification exhibits an antibacterial effect of 99.9% or more, exhibits a contact angle of 150 degrees or greater with respect to a solvent, and thus can be applied to a coating agent exhibiting high air permeability, contamination resistance, and antibacterial effect.

The invention relates to the technical field of ornamental flower seeds, in particular to an antifungal biological coating agent for ornamental flower seeds and a preparation method thereof.The antifungal biological coating agent for ornamental flower seeds is prepared from, by weight, 1.5-3 g of polymer film-forming agent, 0.7-1.5 g of antibacterial polymer powder, 0.1-0.3 g of composite antifungal agent and the balance water, 2-5 g of an auxiliary agent, 90-95 g of an inorganic mineral filler and 0.5-1.5 g of a binder. The coating agent provided by the invention can realize multiple functions of disease prevention, growth promotion and water retention through one-time coating, reduces the labor and material cost of subsequent topdressing and pesticide spraying, and has a good application prospect.

The present disclosure is generally directed to antimicrobial polymers, and methods of preparation thereof. In embodiments, an antimicrobial polymer may comprise a polymeric moiety, an aromatic moiety comprising a naphthoic acid derivative bonded to the polymeric moiety, a pendant group comprising a cation and a linking group bonded to the pendant group and aromatic moiety. Methods of preparation include reacting naphthoic acid or a derivative thereof with a polymer to form a primary intermediate, reacting an alcohol group on the primary intermediate with an acyl halide to form a secondary intermediate, reacting a terminal halide on the acyl halide to form a cationic group on the secondary intermediate.

Molded polymeric articles, extruded polymeric articles, and polymeric films or coatings include a mixture of at least one antimicrobial metal compound and at least one synergistic compound. For example, the molded polymer article, the extruded polymer article, and the polymer film or the coating may include at least one antibacterial metal compound and a boron compound, a mixture of powders, or a liquid dispersion blended into a masterbatch. These polymeric articles may further include at least one pH adjuvant that creates an acidic environment inside or outside the composition. It has been surprisingly found that these components produce a synergistic relationship within the composition that provides a more tailored antimicrobial polymer composition or article.

The invention relates to a method for producing an antimicrobial polymer surface, in particular an antimicrobial biopolymer surface, wherein a surface containing at least one polymer, in particular a biopolymer, is provided and the provided surface is treated exclusively with high-energy electrons in the presence of an oxygen-containing atmosphere, preferably air, and in the absence of further substances, wherein a specified electron energy is applied to the surface at a specified total dose in sequences at specified process dose rates. The invention further relates to a material having such an antimicrobial polymer surface.

The present application relates to the technical field of polymer preparation, in particular to an antibacterial polymer nanocomposite material and a preparation method thereof.The material takes polyhydroxybutyrate and polybutylene adipate terephthalate as a matrix, fuses a non-metallic organic framework antibacterial agent, a non-peptide antibacterial mimic and a photothermal response nanomaterial, wherein the non-metallic organic framework antibacterial agent and the non-peptide mimic synergistically play a chemical sterilization role, and the photothermal response nanomaterial improves the sterilization efficiency through physical thermal effect, so that the material provided by the present application can realize broad-spectrum, efficient and persistent antibacterial effect through the organic combination of multiple antibacterial mechanisms.The material provides a high-efficiency antibacterial solution of multiple mechanism synergy in view of the defects of single antibacterial mechanism and non-persistent effect of traditional materials, and is suitable for medical and packaging fields, and has significant economic value and application prospect.

One aspect of the present invention includes, in antibacterial polymer particles, a crosslinked copolymer having a structural unit derived from a monofunctional monomer having an antibacterial group, and a structural unit derived from a polyfunctional monomer. A water absorption capacity of the antibacterial polymer particles is 3 g / g or more.

The invention discloses an ear canal disinfectant containing isopropanol and a preparation method of the ear canal disinfectant. The ear canal disinfectant comprises isopropanol, octenidine and a guanidyl-containing antibacterial polymer. The auditory meatus disinfectant disclosed by the invention has a good inhibition effect on Gram negative and positive bacteria such as candida albicans, staphylococcus aureus, escherichia coli and the like, and can effectively relieve and treat diseases such as auditory meatus itching and the like.

The present invention relates to an antibacterial composition comprising a cationic polymer and at least one anionic surfactant.