39results about How to "Neutral pH" patented technology

This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.

A thickened composition and process useful for removing paint, comprising: a carbonate such as propylene carbonate or ethylene carbonate, a thickener such as polyvinyl pyrrolidone (PVP), hydrogen peroxide and water. The composition may include additional cosolvents such as glycol ethers and alcohols such as benzyl alcohol, and/or dibasic ester (DBE).

A method of operating an iron redox flow battery system may comprise fluidly coupling a plating electrode of an iron redox flow battery cell to a plating electrolyte; fluidly coupling a redox electrode of the iron redox flow battery cell to a redox electrolyte; fluidly coupling a ductile plating additive to one or both of the plating electrolyte and the redox electrolyte; and increasing an amount of the ductile plating additive to the plating electrolyte in response to an increase in the plating stress at the plating electrode. In this way, ductile Fe can be plated on the negative electrode, and the performance, reliability and efficiency of the iron redox flow battery can be maintained. In addition, iron can be more rapidly produced and plated at the plating electrode, thereby achieving a higher charging rate for all iron flow batteries.

The invention belongs to the field of wallpaper accessories and particularly relates to a nano-silver wallpaper primer which is prepared by mixing the following raw materials in part by weight: 350 to 415 parts of deionized water, 10 to 15 parts of ethylene glycol, 0.5 to 1 part of nano-silver, 0.5 to 1 part of pH control agent, 100 to 200 parts of transparent adhesive, 250 to 350 parts of odorless latex, 8 to 10 parts of film-forming adjuvant, and 6 to 8 parts of alkali-swelling thickener. The nano-silver wallpaper primer product can inhibit the growth of bacteria on the surface of a wall body and prevent mildew of wallpaper, increases the density of the wall surface, solves the problems of wall body chalking and water molecule lateral seepage, and keeps the pH of the wall body balanced to ensure that the pH value of the wall surface trends to be neutral.

The invention belongs to the technical field of high polymer materials and preparation thereof, and particularly relates to primer-free polyurethane glass cement. The primer-free polyurethane glass cement comprises the following components in percentage by weight: 19-20% of dioctyl phthalate, 35-40% of polyurethane prepolymer, 17-20% of calcium carbonate, 5.0-6.0% of spherical silica powder, 2.5-3.0% of titanium dioxide, 1.0-5.0% of calcium oxide, 10.0-14.0% of carbon black, 5.0-6.0% of gas-phase silica, 0.03-0.06% of dibutyltin dilaurate and 0.3-0.6% of glycidoxy propyl trimethoxy silane KH560. The primer-free polyurethane glass cement provided by the invention can be adhered in a primer-free manner, thereby being environmental-friendly, economical and solvent-free, and the primer-free polyurethane glass cement has the advantages of high bonding strength, high curing speed, high thixotropy, etc. The primer-free polyurethane glass cement is widely used for adhering and sealing windshield glass and side window glass of railway vehicles, cars and ships with matrix iron plates and aluminum plates.

In accordance with this invention a binder composition for treating particulate material to form a solid aggregate matrix is prepared by providing a urea formaldehyde precondensate; a polar solvent; additional urea; an acid or salt thereof, the acid or salt thereof being selected such as to render the pH of the binder composition to a value from 2.0 to 5.3; providing a sugar; providing a binding promoter for enhancing the binding between the binder composition and the particulate material; and mixing the above so as to form a binder composition. The binder composition is mixed with particulate material and allowed to set into a solid aggregate matrix over a period of longer than 30 minutes from being mixed with the said particulate material.

An organic light-emitting diode comprising a substrate having a first opposing surface and a second opposing surface; a first electrode layer overlying the first opposing surface; a light-emitting element overlying the first electrode layer, the light-emitting element comprising a hole-transport layer and an emissive/electron-transport layer, wherein the hole-transport layer and the emissive/electron-transport layer lie directly on one another, and the hole-transport layer comprises a cured polysiloxane prepared by applying an organosilicon composition to form a film and exposing the film to moisture to form the cured polysiloxane, wherein the organosilicon composition comprises at least one silane having a group selected from carbazolyl, fluoroalkyl, and pentafluorophenylalkyl; and a second electrode layer overlying the light-emitting element.

Fiberfill fibers are treated with aqueous dispersions of organopolysiloxanes obtained by reaction of condensation-curable organopolysiloxanes with silanes

(R³O)₃SiCR²₂—Y

• or their hydrolyzates,
• where R² is hydrogen or a monovalent lower alkyl radical, R³ is an alkyl radical, Y is —NHR⁴, —NR⁴₂ or —NR⁵ in the presence of water, emulsifier and optionally further silanes

(R³O)_xR_3-xSi—R⁶-Z

• or their hydrolyzates,
• where R⁶ is a divalent C_2-18 hydrocarbyl radical and Z is an amino or aminoalkylamino, epoxy, or (meth)acryloyloxy radical, and x is 1, 2 or 3, and optionally further materials which do not take part in the reaction, wherein no metal-containing catalysts are used and that the organopolysiloxanes and silanes are used in such amounts that the organopolysiloxanes, after removal of water, form elastomeric films insoluble in toluene.

The invention discloses an organic nutrient soil for fruits and vegetables and a preparation method thereof and relates to the technical field of nutrient soil. The nutrient soil contains modified jade red soil, rotten leaf soil, kelp ash, silkworm excrement, refined pond slag, modified biochar, rotten organic matter, wheat bran, boric acid, bamboo vinegar liquid, mannitol, diammonium phosphate and EM bacteria. The preparation method comprises the steps that the rotten leaf soil, the kelp ash, the silkworm excrement, the refined pond slag, the modified biochar, the rotten organic matter, the boric acid, the EM bacteria and the wheat bran are evenly mixed with water; the evenly mixed materials are fermented to obtain an organic mixture; then, the organic mixture and residual raw materials are mixed and granulated. The nutrient soil is high in organic matter content, nutrients are sufficient, the preparation cost is low, the method is convenient to implement, the nutrients are not easy to lose, breathable and draining properties are good, a good root base environment is provided for growth and development of fruit and vegetable plants, the yield and quality of fruit and vegetable products are effectively improved, and the development of the fruit and vegetable industry is promoted.

An apparatus for producing reducing water that maintains a neutral range of pH and exhibits superior reducing force. The apparatus for producing reducing water includes an electrolytic bath including a cathode chamber provided with a cathode, an anode chamber provided with an anode, and an intermediate chamber interposed between the cathode chamber and the anode chamber, wherein the cathode chamber and the intermediate chamber are provided with an inlet through which water is supplied, and an outlet through which water is discharged, a cation exchange membrane is provided between the cathode chamber and the intermediate chamber, and the intermediate chamber includes a cation exchange resin that dissociates hydrogen ions when the cation exchange resin reacts with water.

The invention provides material cleaning equipment and a material cleaning method. The equipment comprises a scrubbing device, a soaking device and a first rinsing device. The scrubbing device is usedfor scrubbing a to-be-cleaned material; the feeding end of the soaking device is matched with the discharging end of the scrubbing device, and the soaking device is used for containing a citric acidsolution and is also used for soaking the scrubbed material in the citric acid solution; the feeding end of the first rinsing device is matched with the discharging end of the soaking device and the first rinsing device is used for rinsing the soaked material. Puree is eliminated by scrubbing and metal ions are eliminated by citric acid. The cleaning process is carried out automatically without human participation, so that the equipment is high in safety and efficiency, low in cost and lossless to material. As the citric acid is mild in property, the material cleaning equipment is very small in harm to the human body and damage to the environment. In addition, in the cleaning process, no exhaust gas is generated. The generated waste water which is only neutralized by acid and alkali simplycan be discharged, the waste water is simple and convenient to treat and the cost is low.

The invention discloses a shampoo rich in algae extract. The shampoo comprises the following components in parts by weight: 55-75 parts of a surfactant, 3-4.5 parts of the algae extract, 1.2-2.4 partsof a thickener, 1.5-2.5 parts of a pearling agent, 1-2 parts of a foam stabilizer, 1.2-2.6 parts of a humectant, 3-5 parts of an anti-dandruff agent, 0.4-0.8 part of a conditioner, 0.4-0.8 part of apigment, 0.1-0.3 part of an acidity regulator, 0.8-1.6 parts of essence and 12-16 parts of de-ionized water. The shampoo disclosed by the invention is scientific and reasonable in structure and safe and convenient to use; and the pH value of the prepared shampoo is closer to 7, the damage of the pH value of the shampoo to the hair quality can be reduced, the phenomenon that the actual use effect of the shampoo and the defective product probability of the shampoo are influenced due to excessive bacterial colonies contained in the prepared shampoo is avoided, the content of effective substancesin the shampoo is increased, the cleaning effect of the prepared shampoo on hairs is enhanced, and the cost of the prepared shampoo is indirectly reduced, so that the market competitiveness of the prepared shampoo is improved.

The invention discloses an STM ultra-membrane wastewater treatment process flow. The treatment process flow comprises the following steps: A, putting wastewater into a flocculation basin for flocculation treatment; B, putting the flocculated wastewater into an anaerobic tank for anaerobic treatment; and C, putting the wastewater subjected to anaerobic treatment into a biological contact oxidation pond for aerobic treatment. According to the invention, the wastewater is firstly subjected to flocculation treatment, so that granular impurities in the wastewater can be flocculated and precipitated, then the wastewater is sequentially subjected to anaerobic and aerobic treatment, anaerobic and aerobic microorganisms in the wastewater can be further removed, and then the wastewater is subjected to acid-base neutralization treatment and disinfection treatment. The pH value of wastewater can be ensured to tend to be neutral, various germs in the wastewater can be killed, finally, the wastewater is subjected to multiple filtration treatment, the germs and various tiny impurities in the wastewater can be effectively filtered, and the filtered wastewater is subjected to high-temperature sterilization treatment, so that the sanitation of a water body is further ensured, and the wastewater treatment effect is effectively improved.

The invention discloses a medium special for soilless culture of Chinese mallow and a preparation method thereof, and relates to the technical field of Chinese mallow culture media. The medium is prepared from agrocybe cylindracea residues, illite, limonitum, volcanic ash of five lotus ponds of Amur River, sepiolite amianthine, peat, natto gum, avocado oil, common yam rhizome size and pure plantextract. According to the preparation method, the medium is prepared through mixing granulation of the raw materials. The medium special for soilless culture of the Chinese mallow is easy and convenient to prepare and low in cost, and the aim of improving the quality of the Chinese mallow and increasing the yield of the Chinese mallow is achieved.