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564 results about "Polyhexamethylene guanidine" patented technology

Polyhexamethylene guanidine (PHMG) is a guanidine derivative that is used as a biocidal disinfectant, often in the form of its salt polyhexamethylene guanidine phosphate (PHMG-P). Studies have shown that PHMG in solution has fungicidal as well as bactericidal activity against both Gram-positive and Gram-negative bacteria. The substance also has detergent, anti-corrosive, and flocculant properties and prevents biofouling. PHMG-P is a white powdered solid, and as all polyguanidine salts, readily soluble in water.

Composite antibacterial polyurethane block polymer and preparation and application thereof

The invention relates to a composite antibacterial polyurethane block polymer and preparation and application thereof. A double-component solvent-free synthesis method is mainly adopted, and polyisocyanates, a mixed hydroxyl polymer, a liquid diamine chain extender, hyamine and guanidinium composite reaction type antibacterial functional monomers and s-triazine are subjected to copolycondensationto synthesize the composite antibacterial polyurethane block polymer. According to the preparation method, di-hydroxyl hyamine and polyhexamethylene guanidine are grafted into a polyurethane main chain, the two types of antibacterial agents are compounded in use, and the advantages of the two antibacterial agents are given full play to respectively. While the polyurethane material modified throughthe complex of the hyamine and the guanidinium reserves the original advantages of polyurethane, the antibacterial property and the lasting antibacterial performance of the polyurethane are improved,but the mechanical property is slightly reduced; in order to solve the problem that the mechanical property is reduced, the antibacterial agent s-triazine is added, the s-triazine contains three hydroxy groups which can react with -NCO, the mechanical property of the PU can be improved, and safe, nontoxic and long-acting antibacterial effects are achieved.
Owner:SHANTOU UNIV

Compound quaternary ammonium salt disinfection solution, and preparation method and application thereof

The invention discloses a quaternary ammonium salt disinfection solution, and a preparation method and application thereof. The quaternary ammonium salt disinfection solution comprises the following components: hexamethylenetetramine, benzalkonium bromide, benzalkonium chloride, polyhexamethylene guanidine, Tween 80, octadecyldimethylbenzyl chloride, isopropanol and sterile water. The invention further discloses a method for preparing the disinfection solution. According to the invention, hexamethylenetetramine, benzalkonium bromide, benzalkonium chloride, polyhexamethylene guanidine, octadecyldimethylbenzyl chloride and Tween 80 are combined together according to a specific mixing proportion, and the components have synergistic effects, so a variety of disadvantages of a single disinfectant variety or a simply-mixed disinfectant are overcome, and a variety of bacteria, fungi, spores and viruses can be thoroughly killed; meanwhile, the disinfection solution is safe to human body, is free of toxicity and stimulation, is convenient to use, can be directly used by being diluted with water, realizes one-step completion of disinfection and cleaning, has no corrosion to equipment and no harm on the environment, and is biodegradable.
Owner:GENERAL HOSPITAL OF CHINESE PEOPLES ARMED POLICEFORCES

Method for producing adipic acid, hexamethylenediamine hydrochloride and polyhexamethylene (di)guanidine chloride from nylon-66 through depolymerization

The invention discloses a method for producing adipic acid, hexamethylenediamine hydrochloride and polyhexamethylene (di)guanidine chloride from waste nylon-66 serving as a raw amerial through depolymerization, which is characterized by comprising the following steps of: depolymerizing the waste nylon-66 by using hydrochloric acid to obtain refined adipic acid and hexamethylenediamine hydrochloride; polymerizing the hexamethylenediamine hydrochloride and dicyandiamide (in a molar ratio of 1:1) at the temperature of between 170 and 190DEG C for 1 to 3 hours to obtain a white or pale yellow solid polyhexamethylene diguanidine chloride; and adding dicyandiamide and ammonium chloride powder in a molar ratio of 1:2 into a reactor, performing reaction at high temperature for 1 to 3 hours, slowly adding hexamethylenediamine hydrochloride powder, continuously reacting for 3 to 7 hours to obtain a white or pale yellow solid polyhexamethylene guanidine chloride. The method improves production efficiency, reduces production cost, and solves the problems of difficult separation of the product hexamethylenediamine due to depolymerization, low yield and poor benefit; and the technological process is environment-friendly, simple and convenient, and is suitable for industrial production.
Owner:NINGBO UNIV

Disinfectant special for inspection instrument in inspection department and preparation method of disinfectant

ActiveCN104026173AExtended broad-spectrum sterilizationBroad-spectrum bactericidalBiocideFungicidesSmoked PlumDisinfectant
The invention discloses a disinfectant special for an inspection instrument in the inspection department and a preparation method of the disinfectant. The disinfectant is prepared mainly by the following steps of crushing pawpaw, fructus aurantii immaturus, schisandra chinensis, pericarpium citri reticulatae, smoked plum, chinese holly, pomegranate bark, exocarpium, eucalyptus robusta smith, dogwood, folium eriobotryae, selfheal, myrobalan, corn silk, ligusticum wallichii, glossy privet fruits and pericarpium citri reticulatae viride, soaking, heating and reflowing, wherein an auxiliary material is a filter liquor which is prepared by heating poinsettia, radix angelicae, hemp fimble stem-fibre, subprostrate sophora and fungus-infected rice spike with ethanol and extracting, wherein an additive of polyhexamethylene guanidine is added. The disinfectant is faintly acid, and the environmental acidity can be changed, so that most bacteria which grow best within a PH range of 6.0 to 8.0, have the strongest enzymatic activity and strongly grow and breed cannot exist, and the bacterial growth is effectively inhibited; the disinfectant is easily dissolved in water, and the disinfectant is easily washed out without residues after being used; the disinfectant has the advantages of being small in corrosivity, good in stability and simple in preparation process, can be widely applied to disinfecting the inspection instrument in the inspection department and is suitable for mass production.
Owner:湖州纯一生物科技有限公司

Compound polyhexamethylene guanidine complexing iodine disinfector and preparation method thereof

The invention relates to a compound polyhexamethylene guanidine complexing iodine disinfector and a preparation method thereof. The compound polyhexamethylene guanidine complexing iodine disinfector comprises the following components in percentage by mass: 0.1-0.5 percent of polyhexamethylene guanidine, 0.5-5 percent of PVP-I (polyvinylpyrrolidone iodine), 30-70 percent of ethanol, 0.1-1 percent of non-ionic surface active agent, 0.5-3 percent of skin-protecting agent, 0.05-0.2 percent of citric acid and the balance of water. The preparation method of the compound polyhexamethylene guanidine complexing iodine disinfector comprises the following steps of: adding polyvinylpyrrolidone iodine into the water according to the content and the components, and stirring the mixture to dissolve; sequentially adding the non-ionic surface active agent, the skin-protecting agent and the citric acid, and stirring the mixture to dissolve; adding and stirring ethanol to the mixture uniformly; and adding and stirring polyhexamethylene guanidine to the mixture uniformly to obtain the compound polyhexamethylene guanidine complexing iodine disinfector. The compound polyhexamethylene guanidine complexing iodine disinfector has the characteristics of stable characteristics, quick and lasting sterilization function, low simulation to skins, quick drying and convenient use.
Owner:SHANGHAI LIKANG DISINFECTION HIGH TECH

Compound polyhexamethylene guanidine antibacterial hand sanitizer and preparation method

The invention relates to an antibacterial hand sanitizer containing polyhexamethylene guanidine, in particular to a compound polyhexamethylene guanidine antibacterial hand sanitizer. The compound polyhexamethylene guanidine antibacterial hand sanitizer is characterized in that: the antibacterial hand sanitizer comprises the following ingredients by weight percentage: 0.1-1.0 of PHMB (polyhexamethylene biguanidine), 0.1-0.5 of cationic surface active agent, 0.5-1.0 of cellulose, 4.0-7.0 of non-ionic surface active agent, 1.0-3.0 of lipotropic agent, 4.0-8.0 of amphoteric surfactant, 1.0-2.0 of glycerol, 0.5-1.5 of citric acid and the balance water. The preparation method of the antibacterial hand sanitizer comprises the following steps: enough water is added in an agitated reactor, and the temperature is heated to 60-80 DEG C, cellulose is added in water under stirring, after the cellulose is completely swelled, the non-ionic surface active agent, the lipotropic agent, the amphoteric surfactant and the glycerol are sequentially added, after the mixture is mixed evenly, bromogeramine and the PHMB are added and are stirred for five minutes, when the temperature of a feed liquid in the agitated reactor is reduced to room temperature, a proper amount of citric acid is added to adjust the pH value of the feed liquid to be neutral, and filling can be carried out on the mixture subjected to standing and defoaming. In the antibacterial hand sanitizer provided by the invention, a cationic surface active agent is compounded as a sterilization ingredient and has synergy function, and the antibacterial hand sanitizer is used for washing easily without irritation.
Owner:SHANGHAI LIKANG DISINFECTION HIGH TECH

Antibacterial and bacteria-isolation SMMS composite non-woven fabric

The invention relates to an antibacterial and bacteria-isolation SMMS composite non-woven fabric. The SMMS composite nonwoven fabric is formed by compounding a first spunbond non-woven fabric layer, afirst meltblown layer, a second meltblown layer, and a second spunbond non-woven fabric layer, wherein the first spunbond non-woven fabric layer and the second spunbond non-woven fabric layer are respectively an upper surface layer and a lower surface layer, the first meltblown layer and the second meltblown layer are intermediate layers, the spunbond non-woven fabric layers and the meltblown layers are all obtained by using polypropylene as a raw material and adding an antibacterial agent for processing, and the antibacterial agent is a chemical and biological compound antibacterial agent ofpolyhexamethyleneguanidine and gamma-polyglutamic acid. The SMMS composite non-woven fabric has the antibacterial and bacteria-isolation functions, the use of the spunbond non-woven fabric layers asthe upper and lower surfaces can ensure that the non-woven fabric has certain strength, good tear resistance, and good wear resistance, the intermediate layers adopt double-layer meltblown, permeability resistance is ensured while the air-permeability and bacteria-isolation performance are good, the resistance to bacteria is not produced, and the use is safe and reliable.
Owner:江阴金凤特种纺织品有限公司

High temperature-resistant acid-resistant anti-corrosion priming paint

The invention relates to paint, and particularly relates to high temperature-resistant acid-resistant anti-corrosion priming paint. The high temperature-resistant acid-resistant anti-corrosion priming paint is prepared from the following raw materials in parts by weight: 12-14 parts of E-12 epoxide resin, 20-24 parts of organic silicon resin, 10-12 parts of amine resin, 3-5 parts of mica powder, 1-2 parts of polyhexamethylene guanidine hydrochloride, 25-30 parts of epoxy acrylate, 2-3 parts of hydroxyethyl methacrylate phosphate, 5-8 parts of isobornyl acrylate, 1-2 parts of triethanolamine, 3-4 parts of p-tert-pentylphenol, 3-4 parts of methyl acrylate, 1-2 parts of cross-linking agents TAIC (Triallyl Isocyanurate), 8-10 parts of isoamyl butyrate, 24-28 parts of nanometer diatomite powder, 7-9 parts of linseed alkyd resin, 1-2 parts of anti-aging agents NBC, 2-3 parts of isocyanate, 2-3 parts of zinc naphthenate, 5-6 parts of auxiliary agents, 10-12 parts of dimethylbenzene and 10-12 parts of butyl acetate. The high temperature-resistant acid-resistant anti-corrosion priming paint disclosed by the invention has the advantages of high paint adhesive force, brightness in paint film colour and lustre, fast drying, high-temperature damage endurance, acid resistance, anti-corrosion and long service life and is priming paint with excellent comprehensive property.
Owner:BENGBU ZHENGYUAN ELECTRONICS TECH
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