389 results about "Mercaptobenzimidazol" patented technology

The invention discloses a preparation method of a heat / ozone / compressive deformation resistant rubber material for an automobile sealing element, and the method comprises a formula and a preparation process. In the invention, nitrile rubber / polyvinyl chloride resin and rubber are adopted; in the formula, a vulcanizing system of dicumyl peroxide and N,N'-m-phenylene dimaleimide is adopted, the anti-aging agents of 2,2,4-trimethyl-1,2-dihyaroquinoline polymer and 2-mercaptobenzimidazole are added, the anti-aging agent of N-isopropyl-N'-phenyl-p-phenylenediamine and a paraffin lubricating agent with ozone resistance are added, and the technical scheme of the corresponding preparation process is provided, thus the problems and defects of low temperature / ozone / permanent compressive deformation resistances in the prior art are overcome, and through the heat / ozone / compressive deformation resistant rubber material prepared by the method, the manufactured rubber article of an automobile oil tank pumping hole sealing element achieves the purpose of improving the heat / ozone / compressive deformation resistances to conform to the Nissan NES M707 standard.

The invention relates to a method of enhancing the tear resistance, tensile strength, and the aging properties of a latex product by adding an antioxidant synergist with an antioxidant to a latex compound comprising of a polymer and a curing system comprised of an activator, crosslinker and accelerator and to the latex products formed therefrom. Antioxidant synergists which can be used with the present invention include 2-mercaptobenzimidazole (MBI), 2-mercaptotoluimidazole (MTI), zinc 2-mercaptobenzimidazole (ZMBI) and zinc 2-mercaptotoluimidazole (ZMTI). The latex products formed may be gloves but can also include threads, balloons and other latex-related products.

The invention relates to a method of enhancing the tear resistance, tensile strength, and the aging properties of a latex product by adding an antioxidant synergist with an antioxidant to a latex compound comprising of a polymer, a stabilizing system, a film surface conditioner and a curing system comprised of an activator, crosslinker and accelerator and to the latex products formed therefrom. Antioxidant synergists which can be used with the present invention include 2-mercaptobenzimidazole (MBI), 2-mercaptotoluimidazole (MTI), zinc 2-mercaptobenzimidazole (ZMBI) and zinc 2-mercaptotoluimidazole (ZMTI). The latex products formed may be gloves but can also include threads, balloons and other latex-related products.

Moisture curable flame retardant insulation compositions for wire and cable having improved adhesion are provided. The compositions are comprised of an ethylene-silane copolymer, high density polyethylene resin, halogenated flame retardant, silanol condensation catalyst and stabilizer combination consisting of a zinc mercaptobenzimidazole and aromatic secondary amine.

The invention discloses a method for recovering nickel in a chemical nickel-plating ageing liquid, and the method comprises the following steps: (1) adding 1100-1300 parts by weight of the chemical nickel-plating ageing liquid into an electrolytic cell, and regulating the pH value of the ageing liquid to 8-10 by use of solid sodium hydroxide; (2) dissolving 0.01-0.03 part by weight of polyethylene glycol, 0.01-0.02 part by weight of 2-mercapto benzimidazole, 0.03-0.06 part by weight of thiourea, 0.005-0.03 part by weight of hide glue and 0.3-0.5 part by weight of sodium hypophosphite into 40-70 parts by weight of water, adding the mixture into the electrolytic cell, and adding 1-3 parts by weight of 5mol / L hydrochloric acid solution; (3) at normal temperature, on the basis of taking a stainless steel plate as a cathode and a reticular plate plated with iridium oxide titanium alloy as an anode, reacting for 8-10 hours at constant reaction current of 0.6-1.0A, thus obtaining a recoveredmetal nickel on the cathode. The method has the advantages of high recovery rate, simple equipment, low cost and the like, works at normal temperature and is easy to realize.

The invention discloses an oil-resistant and low-temperature-resistant material for shoe soles and a method for preparing the oil-resistant and low-temperature-resistant material. The oil-resistant and low-temperature-resistant material comprises, by weight, 60-80 parts of nitrile rubber, 40-50 parts of brominated butyl rubber, 5-8 parts of fluorine-based alkyl polyether-modified polysiloxane, 8-12 parts of zinc oxide, 20-25 parts of white carbon black, 3-5 parts of N, N'-bicyclo-caproyl-2-benzothiazole sulfonamide, 3-5 parts of tetramethyl thiuram disulfide, 2-4 parts of dioctyl phthalate, 6-12 parts of wood powder, 4-6 parts of 2-mercapto benzimidazole, 1-3 parts of sulfur, 1-3 parts of stearic acid and 1-2 parts of percarbamide. The oil-resistant and low-temperature-resistant material for the shoe soles and the method have the advantages that the oil-resistant and low-temperature-resistant material for the shoe soles is excellent in oil resistance, the oil resistance (the expansion rate of the oil-resistant and low-temperature-resistant material after the oil-resistant and low-temperature-resistant material is soaked in oil) can reach 5%-6.8%, the tensile strength of the oil-resistant and low-temperature-resistant material at the temperatures of minus 50 DEG C is 18-22 Mpa, the rebound rate of the oil-resistant and low-temperature-resistant material is 48-51%, the oil-resistant and low-temperature-resistant material is excellent in abrasion resistance, and a friction coefficient of the oil-resistant and low-temperature-resistant material is 1.45-1.65.

The invention relates to a Cu(I) metal gel and chitosan composite magnetic microsphere adsorption agent with good acid resistance and oxido-reduction responsiveness as well as a preparation method and application of the adsorption agent. The method comprises the following steps: (1), preparing Cu(I)-2-mercapto benzimidazole (Cu(I)-2-MBIm) metal gel powder; (2), preparing single-coated magnetic SiO2 nano-particles; (3), preparing the magnetic SiO2 nano-particle and Cu(I)-2-MBIm gel powder coated chitosan microsphere. The preparation method provided by the invention is simple in process and mild in condition and is very suitable for large-scale commercialized production; besides, prepared magnetic composite not only has good acid resistance. but also has good detoxicating and removing property to Cr(VI) ions; the used adsorption agent can be effectively regenerated by an ascorbic acid solution very easily.

Reducing inhibition of the photochemical crosslinking by including in the photosensitive polyimide precursor composition a metal inhibitor selected from 1H-tetrazole, 1,2-cyclohexenediamine tetraacetic acid hydrate and 5-mercaptobenzimidazole.

The invention relates to a method of enhancing the tear resistance, tensile strength, and the aging properties of a latex product by adding an antioxidant synergist with an antioxidant to a latex compound comprising of a polymer, a stabilizing system, a film surface conditioner and a curing system comprised of an activator, crosslinker and accelerator and to the latex products formed therefrom. Antioxidant synergists which can be used with the present invention include 2-mercaptobenzimidazole (MBI), 2-mercaptotoluimidazole (MTI), zinc 2-mercaptobenzimidazole (ZMBI) and zinc 2-mercaptotoluimidazole (ZMTI). The latex products formed may be gloves but can also include threads, balloons and other latex-related products.