168 results about "Benzisothiazolinone" patented technology

The present invention relates to an antimicrobial composition comprising an isothiazolinone, such as 1,2-benzisothiazolin-3-one, and a zinc compound selected from zinc salts, zinc oxides, zinc hydroxides or combinations thereof. Useful zinc salts include for example, oxides, sulfates, chlorides, and combinations thereof. In use, the zinc from the zinc compound enhances the antimicrobial activity to the isothiazolin-containing composition. This enhancement permits achieving the desired antimicrobial activity at a lower usage rate than is achieved using the isothiazolinone in the absence of the zinc compound. The antimicrobial composition can also contain co-biocides, such as pyrithiones, including zinc pyrithione or copper pyrithione.

The environment protecting composite antifouling paint is prepared with organic resin, hot natural plant material, non-toxic mildew-preventing disinfectant, inorganic pigment, stuffing, assistant, exudation aid and solvent, and through physical mixing. The environment protecting composite antifouling paint has no toxicity, no pollution to marine environment and wide application range. It has the functions of resisting bacteria and preventing marine organism from attaching.

The invention discloses an extreme-pressure metalworking liquid. The extreme-pressure metalworking liquid uses recovered oil as base oil, which not only enables cost to be saved but also allows environmental pollution to be reduced; the chlorine-containing extreme pressure agent chlorinated paraffin S52 and the sulfur-containing extreme pressure agent RC4801 are used as extreme pressure agents for the metalworking liquid, so the extreme-pressure metalworking liquid is suitable for machining with a great processing temperature range; benzisothiazolone and 3-iodine-2-propenyl-butylcarbamate are used as antiseptics, which enables the service life of a product to be prolonged. The metal processing liquid provided by the invention is suitable for a wide variety of machining, such as complex processing technologies like cutting, turning, drilling, grinding, boring and milling.

The invention relates to a reverse osmosis membrane scale inhibitor for reusing non-phosphorus reclaimed water and a preparation method of the reverse osmosis membrane scale inhibitor. The reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water comprises the following components: a sulfonate copolymer, polyepoxysuccinic acid, polyaspartic acid, benzisothiazolinone and deionized water. The invention also relates to the preparation method of the reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water. According to the reverse osmosis membrane scale inhibitor for reusing the non-phosphorus reclaimed water and the preparation method of the reverse osmosis membrane scale inhibitor, phosphorus and carboxylic acid homopolymers are not contained, thus the environment can be protected well on the premise that the scale inhibiting effect is ensured, and the generation of the calcium phosphate scale and the calcium gel is avoided.

The invention discloses an anti-aging traditional Chinese painting pigment. The anti-aging traditional Chinese painting pigment is prepared from a color matrix, a dispersing agent, salicylic acid phenyl ester, a colloid, a light stabilizer, acrylic resin, a surfactant, a waterborne wetting agent, benzisothiazolone and deionized water, wherein a mixture of carrageenan and locust bean gum is adopted as the colloid. According to the anti-aging traditional Chinese painting pigment and a preparation method thereof, the anti-aging property of the pigment is improved by mainly adding the light stabilizer and adopting melamine resin with the anti-aging and antibacterial effects as a wall material of the pigment; by adding the mixture of the carrageenan and the locust bean gum which generate the synergistic effect, the moisture retention of the pigment can be improved.

The invention relates to a washing agent with stain removal and softening functions and a preparation method thereof. The washing agent takes sodium fatty alcohol polyoxyethylene ether carboxylate, 1-methyl-2-butter-3-ethyl amide-imidazoline ammonium sulfate methyl ester, dihydro butter acid methyl ester dimethyl ammonium, alkyl polyglucoside, laurylamidopropyl betaine, cocoamidopropyl ammonium oxide, fatty alcohol-polyoxyethylene (9) ether, fatty alcohol-polyoxyethylene (7) ether, fatty alcohol-polyoxyethylene (5)ether, essence, 1,2-benzisothiazolinone-3-ketone, citric acid monohydrate and de-ionized water as raw materials; the softening function of cations on fabrics and the high stain removal, emulsification and degreasing performances of non-ions are utilized and are rationally combined so as to form a stable ion system; and the washing agent simultaneously has high stain removal capacity and good softening function, is applied to the washing of underwear, the clothing of infants, silk, sweaters, bed sheets and quilt covers, makes washing and softening finished at one time, has no toxicity and irritation and saves use cost.

A stable, low VOC, low viscosity biocide formulation comprising an effective amount of at least one biocide, 1,2-benzisothiazolin-3-one (BIT), and a polyglycol liquid carrier of formula (I): R—O-(AO)_n—O—R1, wherein n is 4-25, R and R′ are hydrogen, C₁-C₃ alkyl groups, O═C—CH₃ group, or O═C—C₂H₅ group, and AO is a) CH₂CH₂O, or b) CH₂CH₂O/CH₂CHMe-O block or random copolymer; with proviso that when R and R′ are both hydrogen, AO is a block or random copolymer. A method of making such a formulation.

The invention relates to polyacrylate antifouling copolymerization resin with a side chain comprising benzisothiazolinone and a preparation method thereof. The clear and transparent polyacrylate antifouling copolymerization resin with the side chain comprising the benzisothiazolinone can be obtained by performing solution copolymerization reaction on a N-substituted propenyl acyloxy methyl benzisothiazolinone functional monomer and other one or two or three alkenyl-containing monomers in an organic solvent. The sterilizing copolymerization resin is used as a film forming agent of antifouling paint and has excellent antifouling performance and self-polishing performance; and the resin preparation process is simple and easy to operate.

The invention discloses a water-based polyacrylate antibacterial emulsion, which is obtained by reaction of the following raw materials: 3-6 g of an isothiazolinone group-containing monomer, 24-30 g of an acrylate monomer, 0.5-1g of nonylphenol polyoxyethylene (4) ether ammonium sulfate, 7.0-8.0g of ammonium persulfate and 60-80g of deionized water. The isothiazolinone group-containing monomer isobtained by reaction of 1, 2-benzisothiazolin-3-one, 2-bromoethanol and methacryloyl chloride. The invention also discloses a preparation method of the water-based polyacrylate antibacterial emulsion.The water-based polyacrylate emulsion obtained by pre-emulsification, polymerization, curing, post-treatment and other steps on the isothiazolinone group-containing monomer and the acrylate monomer by taking water as a solvent is uniform in dispersion, good in particle size distribution, stable in compatibility and good in compatibility, and meanwhile, has good antibacterial property and mold resistance, the antibacterial rate is greater than 99.9%, and the mold-proof grade can reach 0 grade; the water-based polyacrylate emulsion can be directly used as a bactericide in water-based paint, andcan also be compounded with common emulsions for water-based paint, like polyacrylic acid, polyurethane or epoxy resin, so that the additive amount of the bactericide is greatly reduced.

The present invention provides novel antimicrobial immobilized 1,2-benzisothiazolin-3-one/zinc oxide (BIT/ZnO) complexes useful as antimicrobial agents because of their resistance to being leached from the substrate to which they are attached. The present invention is also directed to methods for preparing the BIT/ZnO complexes, to BIT/ZnO complexes prepared by the novel methods, to methods for using the BIT/ZnO complexes to inhibit microbial growth or reduce the level of bacteria on the surface of a substrate, and to substrates protected from microbial attack by being treated with the BIT/ZnO complexes. The present invention is further directed to compositions comprising 1,2-benzisothiazolin-3-one which has been immobilized with zinc oxide.

The invention discloses a method for preparation of zinc acrylate resin by grafting modified benzisothiazolinone, the method comprises preparation of a modified benzisothiazolinone derivative and preparation of zinc acrylate resin, in the preparation process of the modified benzisothiazolinone derivative, dicarboxylic anhydride, a solvent and deionized water, in the preparation process of the zinc acrylate resin, a zinc containing material and acrylic resin are used, by the method, the zinc acrylate resin containing the modified benzisothiazolinone can be obtained, the zinc acrylate resin containing the modified benzisothiazolinone has an anti-fouling structure similar to a tributyltin side chain, marine bacteria growth inhibition test shows that: the zinc acrylate resin not only has antibacterial function, but also can inhibit the adhesion and growth of marine organisms, has hydrolyzing polishing function, can delay the release of an antifouling agent, and can effectively prolong the antifouling service life of the coating.

The invention discloses a preparation method for 1,2-benzo isothiazolinone, which comprises the following steps of adding sodium sulphide and sulphur into water and reacting so as to prepare sodium disulfide solution; dissolving chlorobenzonitrile into organic solvent so as to prepare chlorobenzonitrile solution; adding a catalyst into the chlorobenzonitrile solution, then dropping the sodium disulfide solution for reaction, and standing for layering, wherein the oil phase product is double sulfo-cyanophenyl solution; and adding water into the double sulfo-cyanophenyl solution for cooling, then aerating oxidant for reacting, heating at the later stage of the reaction, and finally preparing the product of 1,2-benzo isothiazolinone. According to the preparation method for 1,2-benzo isothiazolinone, one the one hand, the production cost for 1,2-benzo isothiazolinone is lowered, on the other hand, the production environment is improved and the preparation method is beneficial to environment protection.

The invention discloses a method for synthesizing an N-substitued benzo-isothiazolone derivative. The method comprises the following steps: using 2, 2'-dithiodibenzoic acid and triphosgene as raw materials to carry out acylating chlorination, reacting 2, 2'-dithiodibenzoyl chloride with an amine compound to obtain an amide compound, and then performing disproportionation cyclization reaction on the amide compound and an oxidant in a micro-channel reactor under alkaline conditions to obtain the N-substitued benzo-isothiazolone derivative. The synthesizing method has the advantages of 98% above selectivity, 62% above raw material conversion rate, 54% above yield rate, 99% above product purity, strong technical path operability, safe and simple operation process, stable product quality and high yield rate and is suitable for industrial production.

Environmental friendly water-borne coating is disclosed. The coating comprises following raw materials by weight: 100-120 parts of water-soluble epoxy resin emulsion, 10-20 parts of water, 6-7 parts of dipropylene glycol n-butyl ether, 25-35 parts of a composite filler, 0.1-0.3 part of BYK346, 1-2 parts of methylpentanol, 1-3 parts of magnesium stearate, 0.3-0.4 part of polyvinyl alcohol, 0.1-0.2 part of polyacrylamide, 0.2-0.4 part of an emulsifier 6100, 0.1-0.2 part of an organosilicone type efficient defoamer Tego901W, 0.05-0.07 part of polydimethylsiloxane, 0.1-0.2 part of propylene glycol, 0.01-0.03 part of an antiseptic DL702, 0.01-0.02 part of eucalyptus oil, 0.02-0.04 part of 1,2-benzisothiazolin-3-one and 0.4-0.5 part of a leveling agent. Raw materials of the composite filler comprise modified attapulgite, diatomite, activated carbon and kaolin.

The invention discloses corrosion-resistant long-acting antirust liquid. Raw materials of the corrosion-resistant long-acting antirust liquid comprise, by weight, 35-45 parts of compound corrosion inhibitor, 0.1-0.3 parts of a surface active agent, 0.2-0.4 part of hydroxy propyl cellulose, 0.3-0.5 part of polyethylene glycol, 0.1-0.3 part of a defoaming agent, 1-3 parts of sodium gluconate, 0.2-0.3 part of benzisothiazolones and 50-54 parts of water, wherein raw materials of the compound corrosion inhibitor comprise phytic acid, sodium molybdate, diethanol amine, monoethanolamine borate and 2-methyl benzimidazoline. According to the corrosion-resistant long-acting antirust liquid, by means of cooperation of the phytic acid, the sodium molybdate, the diethanol amine, the monoethanolamine borate and the 2-methyl benzimidazoline, the film forming speed of a protective film is increased, the corrosion speed is decreased, the thickness of the protective film is increased, corrosion media are prevented from making contact with metal, and the corrosion-resistant long-acting antirust liquid is made to have good corrosion-resistant performance and long-acting antirust performance.

The invention relates to decorative paper used for veneering indoor floor or furniture. According to the decorative paper used for floor or furniture, the back face of raw paper is provided with a mildew-proof antibacterial layer, and the mildew-proof antibacterial layer is formed by drying a mildew-proof antibacterial complex liquid photogravured on the back face of the raw paper. The mildew-proof antibacterial complex liquid comprises the following components by mass percentage: deionized water, alcohol, propylene glycol methyl ether, a thickening agent, an antibacterial agent CMIT(Chloromethylisothiazolinone) or MIT (Methylisothiazolinone), a bacteriacide BIT (Benzisothiazolinone), a mildew-proof agent OIT (Ocyl-isothiazolinone) and a pH regulating agent, and the pH value of the mildew-proof antibacterial complex liquid is 8.0-8.3. The decorative paper used for floor or furniture has the advantage of good mildew-proof and antibacterial effects.

The invention belongs to the field of detergent compositions and particularly relates to a cosolvent-free high-power concentrated detergent and a preparation method thereof. According to the detergent, the raw material contains sodium sec-alkane sulfonate, anionic surfactants, alkyl glycoside, nonionic surfactants, zwitterionic surfactants, 1,2-benzisothiazolinone-3-one, essence and deionized water. According to the detergent and the preparation method of the detergent, when no cosolvent is added into the raw material, a stable high-concentrated system is obtained by utilizing reasonable compounding among the surfactants, a washing standard is reached at an extremely low concentration, the dissolving problem of the high-content surfactants is solved, and the detergent is good in water solubility and rich in foams and is free of toxin and stimulation; the effective content of the detergent is 5-8 times higher than that of a normal detergent, more than 30% of production cost, packaging cost and transportation cost is reduced, and the resources are lowered; and the material sources are wide, and the preparation process is simple and convenient, thus being convenient for popularization and use.

The embodiment of the invention relates to the field of industrial corrosion prevention and mildew prevention, particularly relates to an isothiazolinone type compound micro-emulsion type sterilization mildew preventive as well as a preparation method and application thereof and more particularly relates to a 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) and 1,2-benzisothiazolin-3-one (BIT)compound micro-emulsion type sterilization mildew preventive as well as a preparation method and application thereof. The DCOIT and BIT compound micro-emulsion type sterilization mildew preventive provided by the embodiment of the invention is prepared from: DCOIT, BIT and auxiliary agents for a micro-emulsion preparation; the preparation method of the DCOIT and BIT compound micro-emulsion type sterilization mildew preventive comprises the following step: preparing the DCOIT, the BIT and the auxiliary agents for the micro-emulsion preparation into the DCOIT and BIT compound micro-emulsion typesterilization mildew preventive. The DCOIT and BIT compound micro-emulsion type sterilization mildew preventive provided by the embodiment of the invention is a stable, efficient and environment-friendly compound micro-emulsion type sterilization mildew preventive of slightly soluble fungicides including the DCOIT and the BIT, can be diluted randomly by water and is not separated out; respectiveadvantages of the DCOIT and the BIT in the aspects of sterilization, corrosion prevention and mildew prevention also can be sufficiently expressed; the DCOIT and BIT compound micro-emulsion type sterilization mildew preventive has high efficiency, low toxicity and high application value.

The invention relates to an acrylic ester grafted epoxy resin containing a benzisothiazolinone structure and a preparation method thereof. In an organic solvent, a mixed monomer composed of N-substituted acryloxymethyl benzisothiazolinone functional monomer and other one or two or three alkenyl-containing monomers is applied to graft copolymerization reaction of the epoxy resin to obtain the clear and transparent acrylic ester grafted epoxy resin containing the benzisothiazolinone structure. The anti-fouling resin serves as the film-forming agent of the anti-fouling coating, and has excellent anti-fouling performance and self-polishing performance; and the resin preparation process is simple and feasible.

The invention discloses a preparation method and application of an anti-bacterial finishing agent for textiles. A reaction type benzisothiazoline anti-bacterial finishing agent is prepared by taking benzisothiazoline derivatives as main anti-bacterial groups, tri-nitrogen benzene rings in triazole derivatives as auxiliary anti-bacterial groups and active substituent groups of the triazole derivatives as potential reactive groups to complete reaction by a one-step method at 0-40 DEG C in the presence of a catalyst. 8-20% of anti-bacterial agent emulsion prepared from the anti-bacterial agent is used for anti-bacterial finishing of cotton fabrics. The cotton fabrics carry out thermal reaction for 40 minutes at 40-80 DEG C, then sodium carbonate is added, reaction is continued for 40 minutes, and then the fabrics are taken out, washed with water and dried in the air, thus completing the finishing processes. The cotton fabrics after undergoing anti-bacterial finishing have a good anti-bacterial effect on escherichia coli and staphylococcus aureus and have higher washability. The preparation method of the anti-bacterial agent is simple, is sufficient in raw material source and is suitable for industrial popularization.

The invention relates to the application of a biodegradable rolling emulsion composite in an aluminum alloy plate strip hot rolling technology. The biodegradable rolling emulsion composite is prepared from, by weight, 60-80 parts of vegetable oil and synthetic ester, 2-10 parts of at least one of oleic acid, triethanolamine and tall oil acid, 0-15 parts of at least one of petroleum sodium sulfonate, modified castor oil polyoxyethylene ether and alkylphenol polyoxyethylene ether, 0-5 parts of 12-14 alcohol, 0-10 parts of at least one of phosphite ester and phosphate ester, 1-5 parts of at least one of acid phosphate ester and isostearic acid, 0.5-2 parts of butylated hydroxytoluene, 0.05-1 part of octyl diphenylamine, 0.05-0.2 part of organosiloxane and 0.5-3 parts of at least one of methylene dimorpholine, iodo-n-butylproparglycarbamate and benzisothiazolones.