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540 results about "Diphenyl phosphate" patented technology

PET (polyethylene glycol terephthalate) fiber/teflon fiber composite sound absorbing cotton and preparation method of PET fiber/teflon fiber composite sound absorbing cotton

The invention discloses PET (polyethylene glycol terephthalate) fiber/teflon fiber composite sound absorbing cotton, which is prepared from the following ingredients in parts by weight: 70 to 80 parts of PET fibers, 40 to 50 parts of teflon fibers, 10 to 15 parts of emulsifying agents OP-30, 5 to 10 parts of peregal O-20, 80 to 100 parts of PP (propene polymer), 30 to 40 parts of HIPS (high impact polystyrene), 15 to 20 parts of activated clay, 10 to 15 parts of modified kieselguhr, 2 to 3 parts of stearic acid, 5 to 8 parts of dioctyl adipate, 4 to 6 parts of cresyl diphenyl phosphate, 2 to 3 parts of liquid paraffin, 1 to 2 parts of 3-aminopropyltrimethoxysilane, 2 to 3 parts of calcium stearate, 1 to 2 parts of barium stearate, 0.5 to 1.5 parts of anti-aging agents RD and 1 to 2 parts of antioxidants DLTP (dilauryl thiodipropionate). The sound absorbing cotton prepared by the invention has the advantages that the appearance evenness is good, the thickness is uniform, the hand feeling is soft, the product bonding degree is good, the tensile performance is high, the sound absorbing performance is excellent, the flame retardant effect is good, and the like.
Owner:芜湖跃飞新型吸音材料股份有限公司

Method for preparing combustion inhibitor bisphenol A bis(diphenyl phosphate)

The invention relates to a preparation method for flame retardant bisphenol A bi(diphenyl phosphate). The preparation method comprises the following steps: taking phosphorus oxychloride, bisphenol A and phenol as raw materials, adopting anhydrous zinc chloride or anhydrous aluminum chloride as a main catalyst, and adopting anhydrous calcium chloride or calcium phosphate as a promoter; adding the phosphorus oxychloride, the main catalyst and the promoter into a reactor for intensive stirring, when the materials are heated up to 73 to 78 DEG C, continuously adding bisphenol A, after the addition of bisphenol A is completed within 2.5 to 3 hours, heating up to and maintaining the temperature of 110 to 115 DEG C, and continuing the reaction for 1.5 to 2 hours; leaking out excessive phosphorus oxychloride under the normal and reduced pressure; and cooling down the intermediate product to 100 DEG C, continuous dropping phenol into the intermediate product, heating up to 140 DEG C 2 hours later, carrying out the reaction for 3 to 4 hours, monitoring the content of phenol through the liquid chromatography, and complementing phenol till the phenol content in the crude product is less than 0.5 percent. The yield reaches 98 percent; the content of triphenyl phosphate is less than 1.5 percent; and the acid number is 0.03mgKOH/g.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Non-halogen flame-proof polyvinyl composite and method of producing the same

The invention provides a non-halogen flame-retardant polyethylene composition and a preparation method thereof, which relates to the field of the flame-retardance modification of resins. The composition contains 100pbw (parts by weight) of polyethylene resin, 35 parts to 55 parts of non-halogen fire retardants and 8 parts to 20 parts of flame-retardant synergists. The non-halogen fire retardant is compounded by ammonium polyphosphate, melamine cyan urate and hydroxyphenol (diphenyl phosphate), wherein, the total amount of the ammonium polyphosphate and the melamine cyan urate accounts for 32pbw to 50pbw, and the weight ratio of the ammonium polyphosphate and the hydroxyphenol is 1:1 to 4:1; the hydroxyphenol (Diphenyl phosphate) accounts for 3pbw to 5pbw. The flame-retardant synergist can be graft copolymer of vinyl acetic ester and maleic anhydride, or graft copolymer of maleic anhydride and ethylene / octane, or ethylene / octane copolymer or polyphenyl ether. All components are mixed according to the parts by weight and then melted to obtain the polyethylene composition. Under the condition that FV-0 grade is ensured to reached, the polyethylene composition has high flame-retardant efficiency, generates no molten drop, creates small volume of smoke during burning and has good comprehensive mechanical properties.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Flame-retardant PC (Poly Carbonate)/ABC composite material capable of shielding high-frequency electromagnetic wave and preparation method thereof

ActiveCN104262929AGood compatibilityAvoid the disadvantage of easy oxidationFiberCarbon fibers
The invention relates to the technical filed of PC (Poly Carbonate)/ABC composite materials and particularly relates to a flame-retardant PC/ABC composite material capable of shielding high-frequency electromagnetic wave and a preparation method thereof. The flame-retardant PC/ABC composite material capable of shielding high-frequency electromagnetic wave comprises PC, ABS, a surface-treated silver-coated copper fiber, a carbon fiber, conductive carbon black, bromotriazine, bisphenol A bis(diphenyl phosphate), polytetrafluoroethylene, an antioxidant 168, an antioxidant 1076, pentaerythritol stearate, an ethylene vinyl acetate copolymer, a silicone-acrylic copolymer toughening agent and gamma-aminopropyl triethoxysilane. Due to the silver-coated copper fiber, the disadvantages that not only the copper fiber is easily oxidized but also silver powder is relatively expensive are avoided, the same effect is achieved and the cost is reduced; the conductivity and the shielding effectiveness are more stable and the flame retardancy is significantly improved. The preparation method disclosed by the invention is simple and mature and high in production efficiency and is conducive to being universally popularized and applied.
Owner:SILVER AGE ENG PLASTICS DONGGUAN

High weather resistant, halogen-free and flame retardant PC/ABS alloy material special for outdoor telecommunication box and preparation method thereof

The invention discloses a high weather resistant, halogen-free and flame retardant PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) alloy material special for an outdoor telecommunication box and a preparation method thereof. The PC / ABS alloy material is prepared from the following raw materials by weight percentage: 60%-80% of polycarbonate resin; 0.1%-10% of acrylonitrile-butadiene-styrene resin; 0.1%-5% of a compatibilizer; 2%-10% of triphenyl phosphate; 2%-10% of resorcinol (diphenyl phosphate); 0.1%-1% of an anti-dripping agent; 0.1%-2% of a light stabilizer; and 0.1%-2% of assistants. According to the invention, the PC and ABS resin with good weather resistance are adopted as the matrix, and through synergy of the compatilizer, the halogen-free flame retardants and the light stabilizer, the halogen-free and flame retardant PC / ABS alloy material with high heat resistance and high performance can be obtained, and can be widely used in the communications industry, the automobile industry, building materials, decoration materials, cables and the electrical industry. The preparation method of the alloy material adopts existing equipment, is simple to operate, and is suitable for industrialized production.
Owner:SHANGHAI AUSELL CHEM TECH

Anti-flaming aging-resistant rubber material

The invention discloses an anti-flaming aging-resistant rubber material which comprises the following constituents in parts by weight: 40 parts to 45 parts of butadiene styrene rubber, 30 parts to 36 parts of polyurethane elastomer, 10 parts to 15 parts of chlorinated butyl rubber, 2 parts to 3 parts of vulcanizing agent BPO, 1.2 parts to 1.8 parts of sulphur, 2 parts to 4 parts of divinyl carboxylic acid sodium, 20 parts to 30 parts of calcite powder, 9 parts to 11 parts of kieselguhr, 5 parts to 7 parts of aluminum silicate, 14 parts to 15 parts of carbon black N660, 14 parts to 15 parts of carbon black N330, 10 parts to 12 parts of magnesium hydroxide, 3 parts to 5 parts of quartz powder, 5 parts to 7 parts of zinc oxide, 2 parts to 4 parts of calcium stearate, 5 parts to 8 parts of barium stearate, 5 parts to 7 parts of diphenyl phosphate ester, 2 parts to 4 parts of melamine, and 1.5 parts to 2.5 parts of silane coupling agent KH450. The anti-flaming aging-resistant rubber material has an excellent anti-flaming aging-resistant performance, so that smog is effectively prevented from generating during a combustion process; besides, the ozone resistance and the weather resistance of the anti-flaming aging-resistant rubber material are excellent; moreover, the anti-flaming aging-resistant rubber material further has the advantages of high elasticity, high hardness and high strength.
Owner:南通鹏达体育用品有限公司

Industrial preparation method of bisphenol A bis(diphenyl phosphate) with low triphenyl phosphate content

The invention discloses an industrial preparation method of bisphenol A bis(diphenyl phosphate) with low triphenyl phosphate content. BDP is short for bisphenol A bis(diphenyl phosphate). The industrial preparation method comprises the following steps: firstly, reacting part of bisphenol A and excessive phosphoryl chloride in the existence of a catalyst to generate a bisphenol A phosphoryl chloride polycondensate containing excessive phosphoryl chloride; removing phosphoryl chloride through vacuum distillation; then, adding the left bisphenol A into the bisphenol A phosphoryl chloride polycondensate containing a small quantity of phosphoryl chloride; and reacting the obtained bisphenol A phosphoryl chloride polycondensate containing a trace amount of phosphoryl chloride and phenol to prepare a crude product of BDP, dissolving the crude product of BDP into a solvent, carrying out acid pickling, alkaline pickling and washing, and then, carrying out reduced-pressure distillation to obtain the BDP product. According to the industrial preparation method, the bisphenol A bis(diphenyl phosphate) with low triphenyl phosphate content is obtained by blowing down the residual phosphoryl chloride by creatively utilizing vacuum under the assistance of hydrogen chloride gas generated by a reactant on the premise that the equipment is not additionally arranged or changed.
Owner:ZHEJIANG WANSHENG
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