167 results about "Antimony compounds" patented technology

This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.

Titanium oxide containing borosilicate glasses, which have been produced without the use of arsenic and antimony compounds, are provided. An environmentally friendly refining method for providing titanium oxide containing borosilicate glass is also provided. The method includes using oxygen containing selenium compounds as refining agents to provide glasses with good transmittance values in the infrared range and show no disturbing discolorations. The glasses of the present disclosure are particularly suitable for the production of IR light conductors, cover glasses for photo sensors, and UV filters.

This invention recognizes the hazards of beryllium and beryllium oxide in automotive applications and offers alternative material solutions. In particular, commercial electrochromic mirrors use beryllium comprising alloys for busbars and may also use beryllium oxide for the electronics used to power and control these mirrors. Further, this can be combined by reducing other known hazards such as mercury, cadmium, lead and antimony compounds.

PCT No. PCT / JP97 / 03541 Sec. 371 Date Jun. 5, 1998 Sec. 102(e) Date Jun. 5, 1998 PCT Filed Oct. 2, 1997 PCT Pub. No. WO98 / 15596 PCT Pub. Date Apr. 16, 1998A polyester-type resin composition which has sufficient anti-static property and flame-retardant property, in addition to maintaining mechanical strength and thermal resistance and which is useful for, in particular, electrical and electronic mechanical parts field. The flame-retardant anti-static polyester-type resin composition of the present invention comprises 100 parts by weight of a thermoplastic polyester (A), from 1 to 35 parts by weight of a bromine-type flame-retardant (B), from 0.1 to 5 parts by weight of an antimony compound (C) and from 3 to 12 parts by weight of conductive carbon black (D), wherein the Br / Sb weight ratio in said polyester-type resin composition is in a range from 5.5 / 1 to 35.0 / 1. Moreover, a reinforcing filler (E), a crystallizing accelerator (F) and a multifunctional compound (G) can be added in further to the said polyester-type resin composition.

An epoxy resin composition contains (A) an epoxy resin having an epoxy equivalent of at least 185 and possessing a skeleton having a structure in which two benzene rings are conjugable to each other directly or via an aliphatic unsaturated double bond, carbon atoms having an atomic orbital of SP2 type accounting for at least 50% of the carbon number, (B) a phenolic resin having a hydroxyl equivalent of at least 160, carbon atoms having an atomic orbital of Sp2 type accounting for at least 85% of the carbon number, (C) a polyimide resin in an amount of 1-20 parts by weight per 100 parts by weight of components (A) and (B) combined, and (D) 70-85% by volume of the entire composition of an inorganic filler. The composition cures into products having flame retardancy and high-temperature reliability even though it is free of bromine compounds and antimony compounds.

The antistatic fireproof composite polyethylene pipe is made of the material comprising bromated fire retardant 5-15 wt%, antimonial compound 3-10 wt%, conducting carbon black 5-8 wt%, polyethylene wax 1-3 wt% and antioxidant 0.5-3 wt% except polyethylene. The conducting carbon black is preferably conducting carbon black modified through heating at 100-300 deg.c at vacuum degree of 1000 Pa for over 10 min. The polyethylene is preferably the mixture of low density polyethylene 15-30% of the total pipe material weight and high density polyethylene 30-70% of the total pipe material weight. The pipe has excellent and lasting antistatic performance, good fireproof performance and excellent physical and chemical performance, and its may be used in coal mine resulting in high safety.

A fire retardant polyamide composition comprising: 20 to 85% by weight of a polyamide (A) of 280° C. or higher melting point, comprising repeating units constituted of: dicarboxylic acid component units (i) consisting of 30 to 100 mol % of terephthalic acid component units, 0 to 70 mol % of component units of an aromatic dicarboxylic acid other than terephthalic acid and 0 to 70 mol % of component units of an aliphatic dicarboxylic acid having 4 to 20 carbon atoms, provided that the sum of these dicarboxylic acid component units is 100 mol %, and diamine component units (ii) composed of aliphatic diamine component units and / or alicyclic diamine component units; 5 to 50% by weight of an inorganic reinforcement (B); 5 to 40% by weight of a brominated fire retardant additive (C) obtained by copolymerizing brominated polystyrene with an olefin having an epoxy group; and 0.1 to 10% by weight of an antimony compound and / or a zinc compound oxide (D), provided that the sum of components (A), (B), (C) and (D) is 100% by weight. This fire retardant polyamide composition is excellent in fire retardant properties, flowability, toughness and reflow heat resistance.

A biaxially oriented polyester film to be laminated on a metal plate and molded, which comprises an aromatic polyester composition comprising:(A) an aromatic polyester which comprises ethylene terephthalate as the main recurring unit and a titanium compound and a phosphorus compound both of which satisfy at least one of the following expressions (1) and (2):wherein Ti is the amount (mmol %) of elemental titanium of the titanium compound contained in this aromatic polyester and P is the amount (mmol %) of elemental phosphorus of the phosphorus compound contained in the aromatic polyester, and the following expression (3):wherein Ti is as defined hereinabove, and which contains alkali metal compounds, germanium compound and antimony compound in a total amount of not more than 3 ppm in terms of the total of elemental alkali metals, elemental germanium and elemental antimony; and(B) 0.05 to 5.0 wt % based on the aromatic polyester composition of inert fine particles having an average particle diameter of 2.5 mum or less.

A flame-retardant metal-coated cloth having a high degree of flame retardancy and a soft feeling without the use of any halogen compound or antimony compound is provided. In the flame-retardant metal-coated cloth, a flame-retardant film comprising a mixture (E) of a phosphorus compound (A), a metal hydroxide (B), a phosphoric ester (C), and a thermoplastic resin (D), is formed on at least one surface of a metal-coated cloth, and the ratio of (A):(B):(C):(D) is 20 to 200:100 to 950:10 to 250:100 in terms of a weight ratio.

A preparation method for a CZTS nano-particle material belongs to the technical field of materials. The method comprises the following steps: first, respectively preparing a reaction system A (dissolving copper salt, antimonic salt and elemental sulfur in ethylene diamine in an ultrasonic manner) and a reaction system B (a water solution of zinc salt and tin salt); then, mixing the system A and the system B in an ultrasonic manner, sealing and heating to 200 DEG C; keeping the the temperature for 7-24 hours for reaction; finally, taking black powder at the lower layer, and obtaining a target product through centrifugation and washing. According to the invention, a moderate amount of an antimony compound is added to allow copper ions and Sb ions to react with the sulfur so as to generate a mobile-phase copper-antimony-sulfur compound and to promote the growth of Cu2ZnSnS4; meanwhile, the crystal grain dimensions of the Cu2ZnSnS4 nano particles are more uniform. The prepared CZTS nano-particle is good in crystallinity, has no other impurity phase, and is more uniform in dimension distribution; the reaction time is greatly shortened under the action of the mobile phase; only sealing and heating equipment is required during the preparation process, so that the preparation steps are simple, and mass production is achieved.

The present invention discloses a new type of organic antimony compound bearing a nitrogen-bridged ligand. The structural formula of the ligand is [PhCH2]N[R][CH2Ph], wherein R is a substituent on nitrogen atom; group X that directly links antimony is an anion with strong charge pulling ability; and in this antimony compound, Sb<3+> not only forms bonds with the two carbon atoms of the ligand but also forms a coordinate bond with the nitrogen atom of the ligand and an ionic bond with the corresponding anion. The present invention also provides the preparation method of this organic antimony compound, as well as its application in organic synthesis as a catalyst.

The invention discloses a preparation method and an application of an Sb-doped Cs2AInCl6 double perovskite material. In the Sb-doped Cs2AInCl6 double perovskite material, A is Na, K and Rb, a cesium-containing compound, an A-containing compound, an antimony-containing compound and an indium-containing compound are used as reaction reagents, concentrated HCl is used as a solvent, the Sb-doped Cs2AInCl6 double-perovskite material is prepared, and the influence of the reaction temperature on the luminous efficiency of the Cs2AInCl6 double-perovskite material is explored. The Sb-doped Cs2AInCl6 double-perovskite material prepared by adopting a solvothermal method is good in crystallinity, high in quality, and capable of being rapidly synthesized in quantity and simple in process; and doping ofdifferent concentrations can be effectively realized by adjusting the feeding ratio of Sb. The material provided by the invention has good stability and high quantum efficiency (PLQY), is suitable for industrial production, and has a wide application prospect in the fields of illumination, backlight batteries, display screens, solar cells and the like.

Substrates, which may be either flexible or rigid, are coated with a flame retardant composition containing an organic polymer, a filler and a zeolite. Good flame retardant properties are obtained even where the composition contains low levels of conventional flame retardant additives such as antimony compounds, brominated compounds and zinc compounds. The flame retardant composition may also be used to adhere different substrates together.

The invention belongs to the technical field of polymer modification, and provides a flame-retardant PBT / PET (polybutylece terephthalate / polyethylene terephthalate) alloy, a preparation method and application thereof. The flame-retardant PBT / PET alloy is prepared from the following components in parts by weight: 30 to 50% of PBT resin, 5 to 15% of PET resin, 15 to 20% of brominated flame retardant, 0.5 to 2% of antimony compound, 4 to 10% of kaolin, and 20 to 40% of reinforcing material, wherein the synergistic agent is a compound synergistic agent; the compound synergistic agent consists of the antinomy compound and the kaolin; the sum of the percentages of the components by weight is 100%. Compared with the traditional art, the preparation method of the flame-retardant PBT / PET alloy hasthe advantages that the V-0 flame-retardant grade of UL-94 and the IEC 60335 safety standard can be simultaneously reached, the loss of mechanical property is very small, the adding amount of the antinomy compound is very low, and the material cost is lower.

The invention discloses a zinc oxide pressure-sensitive resistor raw material. The zinc oxide pressure-sensitive resistor raw material contains the following components in percentage by mole: 91-97% of ZnO, 0.1-3% of Bi2O3, 0.1-2% of Cr2O3, 0.1-1.5% of manganese-containing compound, 0.1-1.5% of cobalt-containing oxide and 0.1-1.5% of Nb2O5. According to the zinc oxide pressure-sensitive resistor raw material, a zinc oxide powder material is adopted as a main material, a stibium-containing compound as one of the traditional additive components is removed, and a variety of metal oxide components are added as additives; and the pressure-sensitive resistor manufactured by the raw material can make up various performance defects caused by the removal of the stibium-containing compound, the properties such as electrical property, mechanical property and reliability and the like are greatly improved, the pressure-sensitive voltage can be controlled in a wider range at the same time, and good comprehensive performance is gained.

A method of manufacturing a glazing panel having a solar factor (FS) of less than 70% and being composed of a vitreous substrate and a tin / antimony oxide coating layer provided on the vitreous substrate and having a Sb / Sn molar ratio ranging from 0.01 to 0.5, preferable 0.03 to 0.5, the method including the steps of providing reactants in gaseous phase which comprise tin and antimony compounds, which are present in an amount effective to form the tin / antimony oxide coating layer; and forming the tin / antimony oxide coating layer pyrolytically on the vitreous substrate from the reactants in gaseous phase to provide the glazing panel having a solar factor (FS) of less than 70%.

The present invention relates to a process for preparation of polyester resin in the presence of a novel catalyst system comprising an antimony compound and inorganic tin compound. The present invention also relates to a catalyst system for the preparation of polyester comprising an antimony compound and inorganic tin compound which reduces the polymerization time at all stages of polyester synthesis and reduces the generation of degradation product. This invention further relates to polyester resin with improved L color having significant importance in end-use applications.

The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation in a gaseous phase via methods of contacting any one of the antimony compound, the molybdenum compound, and the vanadium compound with hydrogen peroxide prior to combining with source compounds for the remaining elements in the catalyst.

Disclosed are compositions comprising: a flame retardant composition comprising (i) an acrylonitrile-styrene-acrylate graft copolymer (ASA) or acrylate-modified ASA, (ii) at least one rigid thermoplastic polymer comprising structural units derived from styrene and acrylonitrile; alpha-methylstyrene and acrylonitrile; alpha-methylstyrene, styrene, and acrylonitrile; styrene, acrylonitrile, and methyl methacrylate; alpha-methyl styrene, acrylonitrile, and methyl methacrylate; or alpha-methylstyrene, styrene, acrylonitrile, and methyl methacrylate, or mixtures thereof, (iii) at least one halogenated flame retardant, (iv) at least one antidrip additive, (v) optionally at least one additive which comprises an inorganic or organic antimony compound, and (vi) optionally at least one acid scavenger. Articles made from said compositions are also disclosed.

A water-soluble catalytic cracking multifunctional deactivator is disclosed. The deactivator comprises following components by weight: 6-30% of an antimony compound and 2-10% of a ligand, with the balance being water. In addition, a preparing method of the deactivator is disclosed. The deactivator has characteristics of capability of deactivating a plurality of metals simultaneously, good dispersity, high activity, low toxicity, miscibility with water, high deposition efficiency of effective components, and significant deactivating effects.

A doping method includes: a first step of depositing a material solution containing an antimony compound containing elements selected from the group consisting essentially of hydrogen, nitrogen, oxygen, and carbon together with antimony to a surface of a substrate; a second step of drying the material solution to form an antimony compound layer on the substrate; and a third step of performing heat treatment so that antimony in the antimony compound layer is diffused into the substrate.

A process for removing Ni from the used etching Ni-containing FeCl3 solution includes adding iron powder or fraky iron scales, reduction reaction, heating to 55-95 deg.C, adding iron powder and sulfur powder, precipitating 2-valence Ni, adding iron powder and sulfur or As compound or Sb compound for further precipitation, and filtering. Its advantages are high effect on recovering Ni and regenerating FeCl3 solution and low cost.

This invention provides a novel polycondensation catalyst using no antimony compound, polyester produced by using the same, and a process for producing polyester. A novel catalyst comprising an aluminum compound and a phosphorus compound is used as the polycondensation catalyst in producing polyester. The polyester of this invention can be applied to fibers for clothes, fibers for industrial materials, various films, sheets and molded articles such as bottles and engineering plastics, as well as coatings and adhesives.

A polymerization catalyst for polyester production which consists mainly of ingredients other than antimony compounds and germanium compounds, has excellent catalytic activity, and gives a polyester which, even without undergoing catalyst deactivation or removal, is effectively inhibited from thermally deteriorating during melt processing and has excellent thermal stability; a polyester obtained by using the catalyst; and a process for producing a polyester with the catalyst. The catalyst contains neither antimony nor germanium, has an activity parameter (AP) satisfying AP (min) < 2T (min), gives polyethylene terephthalate having an index of thermal stability (TD, %) satisfying TD<25, and comprises a metallic ingredient and an organic compound ingredient containing an Ar-O- and / or Ar-N< unit. The polyester is usable as, e.g., various molded articles such as a fiber, film, sheet, and hollow molding.