44results about How to "Reduce tendency to aggregate" patented technology

The present invention relates to a new method for purifying acrylic acid. It uses tetrafluoroethylene single coboiling agent or tetrafluoroethylene and aromatic hydrocarbon compounded cobiling agent, in the light-removing tower adopting parallel-flow jet tray it adopts azeotropic rectification process to remove the water and acetic acid from acrylic acid aqueous solution. Said process method has higher dewatering rate and acrylic acid removing rate and lower acrylic acid carrying-out rate.

The invention relates to a microcapsule dispersion stabilizer, which comprises a dispersing agent, a lubricating agent and a humectant, wherein the mass ratio of the dispersing agent to the lubricating agent to the humectant is 0.02-1.6: 1-60: 20. When the microcapsule dispersion stabilizer is stirred into microcapsule emulsion, the microcapsule dispersion stabilizer is dispersed between microcapsule particles so as to keep stability of the microcapsule emulsion and dispersion uniformity of the microcapsule particles, wherein through components of the dispersing agent, a gathering trend of the microcapsule particles is reduced and stability of the microcapsule emulsion is kept; components of the humectant have water-lock and moisturized functions, so that the speed of loss of core materials of the microcapsule particles can be reduced, and stability of performances of the microcapsule particles can be ensured in a long-term storage process; and components of the lubricating agent are beneficial to reduce damage of technique processes on microcapsules, such as spraying of the microcapsule emulsion and the like, and improve usability of the microcapsule emulsion. The invention further relates to the microcapsule emulsion and paper for daily use utilizing the microcapsule dispersion stabilizer.

The present invention relates to antigen-binding compounds that inhibit CD39. The invention also relates to cells producing such compounds; methods of making such compounds, and antibodies, fragments, variants, and derivatives thereof; pharmaceutical compositions comprising the same; methods of using the compounds to diagnose, treat or prevent diseases, e.g. cancer.

The invention discloses a nodular cast iron manhole cover casting method for preventing cold shut defects. Molten iron component selection is controlled, microelements exceeding general standards arenot allowed, reasonable nodulizing agents and nucleating agents are added, lanthanum can eliminate graphite deterioration and graphite floatation, the tendency of blooming graphite aggregation is decreased, the number of graphite nodules can be increased, nodulizing rate is increased, shrinkage porosity tendency is decreased, high-quality nodular cast iron liquid is provided, and the cold shut defects of a formed cast iron manhole cover are decreased. By strictly controlling casting temperature and casting modes, the probability of casting defects such as sand burning, shrinkage and deformation is reduced, and each casting mould is uniformly filled with molten iron. The cold shut defects are prevented by the aid of component control, casting temperature and mode control and the like in thecasting process, the nodular cast iron manhole cover is excellent in quality and mechanical property and worthy of popularization, and the process is conveniently controlled.

The present invention relates to a primary composition that includes at least one carotenoid-containing extract, concentrate or oleoresin enriched in cis-isomers of the carotenoid compound, and process of forming the same. It also relates to an oral composition that contains the primary composition in a foodstuff, in a food supplement, in a cosmetic preparation or in a pharmaceutical preparation.

The invention provides a high-weatherability aqueous wall coating. The high-weatherability aqueous wall coating is prepared from, by weight, 30-38 parts of a pure acrylic emulsion, 18-24 parts of a PEVE emulsion, 8-10 parts of CPVC, 4-6 parts of a pigment, 10-16 parts of a filler, 15-21 parts of water, 0.2-0.4 parts of a wetting agent, 0.2-0.5 parts of a dispersant, 2-2.5 parts of a film forming assistant, 0.1-0.6 parts of a thickener, 0.1-0.3 parts of a mildew inhibitor, 0.5-0.6 parts of glycol and 9-14 parts of aluminum doped zinc oxide. The invention also provides a preparation method of the high-weatherability aqueous wall coating. The high-weatherability aqueous wall coating has the advantages of very good ozone ageing resistance, very good infrared reflection performance, and very good weatherability.

The invention relates to the field of light component removal towers, specifically to an acrylic acid purification and light component removal tower. The acrylic acid purification and light componentremoval tower comprises an acrylic acid purification and light component removal tower body, a rectification section sieve plate, a filter screen mechanism, a cooling mechanism and a separation mechanism, wherein a feeding pipe communicating with the interior of the acrylic acid purification and light component removal tower body is fixedly connected to the middle part of the acrylic acid purification and light component removal tower body, and a gas outlet pipe is arranged at the top of the acrylic acid purification and light component removal tower body; the rectification section sieve plateis mounted in the acrylic acid purification and light component removal tower body, and is positioned above the feeding pipe; the filter screen mechanism is mounted in the acrylic acid purification and light component removal tower body, and is positioned above the feeding pipe; the cooling mechanism is connected with the acrylic acid purification and light component removal tower body; and the separation mechanism is connected to the interior of the acrylic acid purification and light component removal tower body. The acrylic acid purification and light component removal tower provided by the invention has the advantages of short acrylic acid production period and capability of reducing the blockage probability of the rectification section sieve plate.

A steel slag powder grinding aid for improving particle aggregation comprises, by weight, 45-48 parts of water, 4-6 parts of industrial salt, 2-3 parts of anhydrous sodium sulfate, 4-5 parts of sodiumnitrite, 2-4 parts of urea, 15-17 parts of compound alcohol amine, 17-20 parts of glycerol and 4-5 parts of sugar. The steel slag powder grinding aid can improve the grinding efficiency, improve theyield, reduce the power consumption of a mill, save energy and reduce the cost.

The invention provides a high-W-content high-Mo-content nickel-base high-temperature alloy. The high-W-content high-Mo-content nickel-base high-temperature alloy comprises the following element components in percentage by mass of 0.013-0.018wt% of C, 20-21wt% of Cr, 7.9-8.1wt% of W, 7.9-8.1wt% of Mo, 0.6-0.75wt% of Al, 0.6-0.75wt% of Ti, 0.28-0.33wt% of Mn, 0.15-0.20wt% of Si, 0.002-0.013wt% of P,0.001-0.013wt% of S, 0.11-0.19wt% of Fe, 0.002-0.005wt% of B, 0.02-0.05wt% of Ce, 0.02-0.06wt% of Zr, and the balance Ni. According to the high-W-content high-Mo-content nickel-base high-temperaturealloy disclosed by the invention, the elemental composition compounding ratio is optimized, so that deposition tendency of carbides is reduced, the distribution of the carbides is more uniform, and gathering tendency is reduced.

An antibody or antigen-binding portion thereof which binds to PSMA and comprises a heavy chain variable domain comprising the sequence given in SEQ ID NO:33, wherein SEQ ID NO:33 is: EVQLVQSGX9E X11KKPGASVKV SCKX24SGYTFT EYTIHWVX38QA X41 GKGLEWIGN INPNX55GGTTY NOKFEDRX68TX70 TVDKSTSTAY MELSSLRSED TAVYYCAAGW NFDYWGOGTT VTVSS wherein: X9 is A or P X11 is V or L X24 is A or T X38 is R or K X41 is P or H X55 is N or Q X68 is V or A; and X70 is I or L whereby the heavy chain variable domain comprises up to 3 amino acid sequence modification(s) between positions 1-30, 36-49, 67-98 and 105-115 of SEQID NO: 33. The invention also provides compounds that include the antibody or antigen-binding portion thereof, such as conjugates, and their use in the treatment or diagnosis of diseases, in particular cancers, particularly prostate cancer.

The invention relates to a high-heat-insulation ultra-thin coating for a centrifugal casting cylinder liner. The coating is prepared from, by weight, 20-30 parts of cryolite powder, 18-22 parts of bentonite, 20-30 parts of high-alumina powder, 13-17 parts of coke powder, 4-6 parts of glaze powder, 1.5-2.5 parts of flour, 0.8-1.3 parts of soap powder, 6-8 parts of water glass and proper amount of water. The invention also discloses a production process of the high-heat-insulation ultra-thin coating. The high-heat-insulation ultra-thin coating has the advantages that in the centrifugal casting process of the cylinder liner, a high-heat-insulation adhesion layer is formed in an inner cavity of a die, a small amount of coating is added every time, when the thickness of the coating on the outersurface of a cylinder liner blank is only 0.2-0.3mm, normal production can be realized, the internal quality of the cylinder liner can be improved, the cost is reduced, the rejection rate is reduced,the cooling speed in the centrifugal casting process is remarkably reduced, A-type graphite is realized, the dendrite and aggregation tendency is reduced, the internal quality of the cylinder liner is improved, and the service life of the die is prolonged.

The invention discloses a preparation method of a high-temperature-resistant anti-foaming agent, and belongs to the technical field of anti-foaming agent preparation. Poplar wood is used as raw materials and is subjected to crushing, extraction, lignin removal and ultrasonic crushing to obtain lignin nanometer cellulose; then, methylsilicone oil soaking is performed; high-speed dispersion is performed with fumed silica to obtain the high-temperature-resistant anti-foaming agent; the wettability with an organic phase and the dispersibility are improved; at a high temperature, the oil phase diffusion speed of the nanometer cellulose is accelerated; the outer surface energy of surrounding bubbles is reduced, so that bubble breaking is caused; under the high-temperature conditions, the anti-foaming speed of the methylsilicone oil is accelerated to a certain extent; the methylsilicone oil achieving the anti-foaming effect has better chemical stability and cannot easily react with substancesin a foaming system; the affinity of the methylsilicone oil on cellulose is better than the affinity of water; the viscosity is high; the dissolution degree in the water is very low, so that the anti-foaming time of equivalent anti-foaming agent is longer; the pore structure of the cellulose is favorable for conversion of big foam into small bubbles, so that the anti-foaming effect of the anti-foaming agent is enhanced; the foam inhibition time is long; the application prospects are wide.

The present invention provides an acrylic acid purification light-removing tower whose lower stage adopts macroporous sieve-plate and upper stage adopts parallel flow jet tray. Said tower can effectively raise separation power and reduce temp. of tower bottom, reduce energy consumption and reduce the polymerization tendency of acrylic acid of tower bottom.

The invention discloses a viscosity reducer for ultra-high-performance concrete, which is prepared by using phthalic anhydride, polyol polymer and phosphorylation reagent as raw materials and reacting with a catalyst; the polyol polymer is polyethylene glycol or Polypropylene glycol; the phosphorylation reagent is one of phosphoric acid, phosphorus pentoxide, polyphosphoric acid, and sodium phosphate; the molar ratio of phthalic anhydride, polyol polymer, and phosphorylation reagent is 1:(1.1~1.5) : (1.1~1.7). The preparation method of the viscosity reducer is as follows: step 1, add polyol polymer into a four-necked flask, control the temperature at 30°C to 40°C, stir, add phthalic anhydride, then add catalyst, and stir for 1 to 2 hours; Step 2: Add the phosphorylation reagent aqueous solution to step 1, control the temperature at 50°C-60°C, stir and react for 2-3 hours, and cool to room temperature to obtain the viscosity reducer. The viscosity reducer is used in ultra-high-performance concrete with a water-binder ratio of 0.12 to 0.2, and can significantly reduce the viscosity of the concrete and improve the workability of the concrete.