54results about How to "Small contamination" patented technology

With respect to a substrate conveyor apparatus that, being a substrate conveyor apparatus that carries substrates on which patterns are formed, carries the substrates in a state protected by a protective cover when the substrate is not used, a substrate conveyor apparatus having a cover protection means that conceals the inner surface of the protective cover when the substrate is used.

A method for producing a ZnO single crystal by a liquid phase growth technique, comprising the steps of: mixing and melting ZnO as a solute and PbF₂ and PbO as solvents; and putting a seed crystal or substrate into direct contact with the obtained melted solution, thereby growing a ZnO single crystal on the seed crystal or substrate.

The invention relates to the technical field of coatings, in particular to a high temperature-resistant fireproof coating and a preparation method thereof. The high temperature-resistant fireproof coating is prepared from the following raw materials in parts by weight: acrylic resin, inorganic filler, a thickener, a flame-retardant agent, a ceramic additive, fireproof short fibers, a crosslinkingagent, a coupling agent, a flatting agent, a defoaming agent, a wetting agent, a film forming additive, other additives and solvents. The high temperature-resistant fireproof coating has the advantages that high temperature can be endured, the flame-retardant property is good, the propagation of fire condition is well blocked, and the fireproof property is excellent; the effect of resisting long-time impact by 1100 DEG C hydrocarbon high-temperature fire hazard is realized; the weather-resistant property and waterproof property are realized, the shrinkage is avoided, the coating strength is high, and the surface is flat.

Container bag which comprises, when the container bag is filled, a cylindrical wall part forming a first central filling space; a number of accessories fixed thereto forming additional filling spaces; and a bottom, wherein the above-mentioned accessories are provided on the outside of the cylindrical wall part.

The invention discloses a preparation method of low-contamination lignosulfonate. The method comprises the steps as follows: after precipitating slurrying waste liquor for 0.5-2 h, removing water insoluble matter and cellulose impurities by a filter; condensing the slurrying waste liquor by membrane filter equipment to increase the concentration of the slurrying waste liquor from 8wt%-15wt% to 15wt%-30wt%; putting a sulfonating agent accounting for 5wt%-40wt% of concentrated liquor and a condensing agent accounting for 5wt%-40wt% of concentrated liquor once, conducting a reaction at 70-100 DEGC for 1-6 h, and performing sulfonation and polycondensation on the concentrated liquor; adding 0-10wt% of a reaction reagent to the concentrated liquor after sulfonation and polycondensation reaction, and conducting a reaction at 40-80 DEG C for 1-5 h; performing spray drying by a hot blast stove reaction solution to obtain lignosulfonate powder with finer particles. The invention also relates to lignosulfonate prepared with the preparation method. The low-contamination lignosulfonate is prepared from the slurrying waste liquor, particularly soda process slurrying waste liquor, waste utilization is realized, and the lignosulfonate has high thermal stability, good dispersity and low contamination while environmental pollution is reduced.

The invention provides a disperse dye as well as a preparation method and an application thereof and a disperse black dye composition with high sublimation fastness. The disperse dye comprises the composition. Based on the total weight of the composition, the composition comprises 30-50wt% of component A in the formula (I) in the specification, 35-70wt% of component B in the formula (II) in the specification and 0-15wt% of component C in the formula (III) in the specification, wherein in the formulas, R1 is Cl or Br; R2 and R3 are respectively and independently -CH2CH2OCOCH3 or -CH2COOCH3; Q is shown in the structural formula in the specification; X1 is Cl or Br; R4 is H, -NHCOR7 or C1-C4 alkyl; R5 and R6 are respectively and independently C1-C4 alkyl, C1-C4 alkyl with one hydrogen replaced by cyano group or -CH2CH2OCOCH3; and R7 is C1-C4 alkyl.

The invention discloses a disperse blue dye composition and a disperse blue dye and a preparation method and an application thereof. Based on the total weight of the disperse blue dye composition, the disperse blue dye composition comprises 60-90 percent of a component A and 10-40 percent of a component B, wherein the component A is the compound shown in the formula (I), and the component B is one or two of the compounds shown in the formula (II), wherein R1 is Cl or Br. The disperse blue dye comprises the disperse blue dye composition and auxiliary materials, and has good washing fastness and less staining to polyester/polyurethane cotton or blended fabrics thereof.

The invention relates to a dispersed black dye composition, dispersed black dye, and a preparation method and application thereof. Based on the total weight of the dispersed black dye composition, the dispersed black dye composition comprises 5 to 15 weight percent of component A shown as a formula (I), 35 to 60 weight percent of component B shown as a formula (II), 20 to 35 weight percent of component C shown as a formula (III) and 5 to 15 weight percent of component D shown as a formula (IV). The dispersed black dye consists of the dispersed black dye composition and auxiliary materials, has high washing fastness and sublimation fastness and has low contamination property on polyester ammonia cotton and blended fabric thereof. R in the formula (I) is alkyl of C1-C2 and R2 in the formula (II) is Cl or Br.

The invention provides a reactor for the manufacture of silicon by chemical vapour deposition (CVD), the reactor comprises a reactor body that can rotate around an axis with the help of a rotation device operatively arranged to the reactor, at least one sidewall that surrounds the reactor body, at least one inlet for reaction gas, at least one outlet for residual gas and at least one heat appliance operatively arranged to the reactor. The reactor is characterised in that during operation for the manufacture of silicon by CVD, the reactor comprises a layer of particles on the inside of at least, one sidewall.