41 results about "Catatonic reaction" patented technology

A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. The hydrogel may be used as biocompatible viscoelastic filler for implant applications. Both the hydrogel and nonwoven materials are also suitable for use as tissue engineering scaffolds.

A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. Another use for the hydrogel is as a biocompatible viscoelastic filler for implant applications.

The invention discloses an ester compound containing oxetane group. The compound has polyfunctionality, high stability and high cationic reaction activity and is simple and convenient to prepare and high in yield. The ester compound which is applied to a cationic photo-curing formula can represent a very excellent photo-curing property and is extremely short in curing time and obviously superior to the existing similar compound, and moreover, the product has excellent flexibility and hardness.

The invention discloses a free radical-positive ion mixed type photo cured composition, which comprises an anthracene ester sensitizer selected from compounds having a structure represented by the formula (I) and / or macromolecular compounds taking the structure represented by the formula (I) as the main structure; positive ion reaction type compounds, free radical reaction type compounds, wherein the two reaction type compounds comprise at least one compound containing unsaturated double bonds and at least one compound containing epoxy groups; a positive ion type photoinitiator; and optionally comprises a free radical type photoinitiator. Through component optimization, the advantages of a free radical photo cured system and a positive ion photo cured system are combined; the photo cured composition can well respond to a light source with a wavelength of 200 to 500 nm; the curing speed is quick, the shrinkage rate is little, the developing property is excellent, the image is complete, moreover, the hardness of cured film is high, and the adhesive force on a basic material is strong.

The invention discloses a method for membrane electrolysis of mineralized CO2 co-produced strong acid. The method comprises the following steps of: placing an anion-exchange membrane in an electrolytic bath to ensure that the electrolytic bath is separated into a positive area and a negative area; adding a mineralized raw material and a negative electrode solution into the negative area, charging carbon dioxide gas into the negative area at the same time; adding a positive electrode solution into the positive area; and applying a direct current supply between a positive electrode and a negative electrode, wherein the negative electrode reduces hydrogen ions in the negative electrode solution into hydrogen gas to ensure that the carbon dioxide in the solution is transformed into carbonate radicals or bicarbonate radicals which react with positive ions in the mineralized raw material to realize the mineralization of the CO2 and obtain a mineralized product, and negative ions in the mineralized raw material permeate through the anion-exchange membrane and enter the positive area under the action of current to combine with the hydrogen ions generated by the positive electrode so as to generate the strong acid. The method has the characteristics operation at normal temperature and pressure, simple process, low energy consumption and suitability for industrial production.

Stable and substantially filled cationic dental compositions are described which include:(1) at least one cationically reactive compound (A);(2) at least one dental filler (B);(3) optionally, at least one dispersant (C) composed of at least one organic polymer or copolymer;(4) at least one cationic photoinitiator (D); and(5) optionally, at least one photosensitizer (E). The dental filler (B) is treated with at least one organosilicon coupling agent (F), andat least one compound (G). The organosilicon coupling agent (F) has at least one reactive function (rfA) directly linked to a silicon atom forming after activation of a chemical bond with the dental filler, and at least one reactive function (rfB) not directly linked to a silicon atom, forming after activation, a chemical bond with a reactive function (rfC) of the compound (G).

Stable, highly filled cationic dental compositions useful for the production of dental prostheses and dental restoration materials contain: (1) at least one compound which is reactive cationically when activated, advantageously at least one UV-and cationically reactive oxirane-functionalized silicone; (2) at least one dental filler, advantageously SiO2; (3) at least one organic polymer or copolymer dispersant having an amine index less than or equal to 100 mg of potassium hydroxide per gram of dispersant, advantageously a polyurethane / acrylate copolymer or alkylammonium salt thereof; (4) at least one cationic photoinitiator, advantageously iodonium borate; and (5) optionally, at least one photosensitizer.

A modified alkali silicate composition for forming an inorganic network. The modified alkali silicate matrix is made by reacting an alkali silicate (or its precursors such as an alkali hydroxide, a SiO2 source and water), an acidic oxoanionic compound such as phosphoric acid, water and optionally one or more multivalent cation(s) selected from Groups 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 or 16 of the periodic table such as an alkaline earth salt, water and optional processing aids. An inorganic matrix composite can be prepared by applying a slurry of the modified aqueous alkali silicate composition to a reinforcing medium and curing the composite at a temperature from about 15° C. up to 1000° C. and a pressure of up to 20,000 psi for typical high-performance organic polymer processing (temperatures about 15° C. to about 200° C. and pressures <200 psi). The composite can be shaped by compression molding as well as other known fabrication methods.

The invention discloses a cationic reactive Gemini polyurethane surfactant and a preparation method thereof and belongs to the technical field of fine chemicals. The cationic reactive Gemini polyurethane surfactant is obtained by enabling excess diisocyanate to sequentially react with fatty amine polyoxyethylene ether and a chain extender, further adding a blocking agent to block remaining isocyanate groups, then neutralizing and dispersing in water. A series of surfactants with different performances, uses and unblocking temperatures can be obtained by selecting the types of fatty amine polyoxyethylene ether, the chain extender and the blocking agent. The cationic reactive Gemini polyurethane surfactant disclosed by the invention can solve the problem that the traditional surfactant is easy to migrate and precipitate on the one hand, and improve the compatibility of the cationic reactive Gemini polyurethane surfactant and the traditional surfactant, as well as water resistance, dielectricity, optical transparency and other performances on the other hand; furthermore, the cationic reactive Gemini polyurethane surfactant can realize the effects of strengthening, toughening, reducing surface tension and the like for a matrix, and shows broad application prospects in the fields of preparation of polymer emulsions, finishing of leather and synthetic leather, textile coating and the like.

A controlled fusion process is provided that can produce a sustained series of fusion reactions: a process that (i) uses a substantially higher reactant density of the deuterium and tritium gases by converging cationic reactants into the higher reaction density at a target cathode rather than relying on random collisions, the converging producing a substantially higher rate of fusion and energy production; (ii) uses a substantially lower input of energy to initiate the fusion; (iii) can be cycled at a substantially higher cycle frequency; (iv) has a practical heat exchange method; (v) is substantially less costly to manufacture, operate, and maintain; and, (vi) has a substantially improved reaction efficiency as a result of not mixing reactants with products.

A process for preparing the adhesive used to making die pressed paper board with used paper pulp includes such steps as copolymerization of acrylate, vinyl acetate, cationic emulsifier, deionized water and H2O2 to obtain emulsion, proportionally mixing it with cationic polyamide and epoxy chloropropane to obtain colloid, adding ionic starch and water, heating while stirring and adding the aqueous solution of ammonium sulfate, and diluting.

A method of emulsifying a substituted cyclic dicarboxylic acid anhydride sizing agent such as alkenyl succinic anhydride (ASA), primarily for papermaking operations, uses a cationic reaction polymer synthesized from an epihalohydrin and a polyamine, preferably a polyalkyleneamine. The synthesis of the reaction product is controlled to obtain a polymer end product viscosity, by Brookfield, ranging between 50 and 300 cps at 25° C. and at 30 to 35% solids. Alternatively, the preferred cationic polymers can be described as having an intrinsic viscosity value in a 0.2M NaCl solution of 0.18 to 0.35 dL / gm at 30° C. The polyamine-epihalohydrin polymers can also be optionally used in combination with a surfactant for further emulsifying of the ASA size.

The invention relates to a radiation-curable precious-metal preparation, in particular a bright-gold preparation, that contains in addition to a gold compound, which in particular is soluble in the printing medium, and further customary organometallic compounds a radiation curable, in particular UV-curable, printing medium, the polymerisation being initiated by the UV radiation and proceeding in accordance with a cationic mechanism which may optionally be assisted by the process that takes place simultaneously in accordance with a radical mechanism. The invention also relates to a transfer picture containing the precious-metal preparation, and to a process for decorating substrates that are suitable for decoration firing by direct application / printing and indirect printing (decalcomania).

A salt-like, hydrophobic structured silicate is disclosed. The cation of the salt-like structured silicate is a low-molecular organic cation or a combination thereof with an NH4<+>, H3O<+>, alkali metal, alkaline earth metal, earth metal and / or transition metal ion. The anion of the salt-like structured silicate is an island, ring, group, chain, band, layer or tectosilicate, or a combination thereof. The structured silicate is produced by (a) reacting a structured silicate whose cation is an NH4<+>, H3O<+>, alkali metal, alkaline earth metal, earth metal and / or transition metal ion or a combination thereof, and whose ion is an island, ring, group, chain, band, layer or tectosilicate, or a combination thereof, in an aqueous dispersion with a low-molecular organic cation; by (b) adding to and intensively blending with the aqueous structured silicate dispersion a hydrophobic compound from the group of waxes and metal soaps, in a quantity ranging from 0.2 to 200 % by weight of the salt-like structured silicate in step (a), before, during and / or after step (a) is carried out; and by (c) optionally removing, drying and isolating in the form of a powder the salt-like, hydrophobic structured silicate produced during step (b).

The invention discloses a preparation method of a positive ion reaction type environment-friendly fabric stiffening agent. According to the stiffening agent, waterborne polyurethane is taken as a main body and can have a cross-linking reaction with fiber when used for the fabric finishing process, and a good stiff effect is obtained. No environmental pollution is caused in the production process, no formaldehyde is produced in the use process, and harm to a human body is avoided. Besides, the stiffening agent adopts a positive ion type stiffening agent and has better compatibility with most of feeling agents, one-bath afterfinish can be realized, the production procedure is simplified, energy can be saved, and the production efficiency is improved.

The invention discloses a group of platinum (II) coordinated complex having effective anticancer activity, which is represented by the structural formula (1) disclosed in the specification, wherein R groups are the same, which are hydrogen atoms or C1-5 alkyl, the cyclohexane diamine is 1,2-trans-cyclohexane diamine, R3 and R4 in formula (3) can be identical or different, which are hydrogen atom or C1-5 alkyl, or can connect with a carbon atom to form a cycloalkyl.

The invention discloses a novel positive ion photo curing system. The novel positive ion photo curing system comprises an anthracene ester sensitizer which is selected from a compound with the structure as shown in the formula (1) and / or a macromolecular compound taking the compound as shown in the formula (1) as the main structure, a positive ion reaction type compound and a positive ion type photoinitiator. Compared with the conventional positive ion photo curing system, the composition is low in cost, and has extremely high response to the light source within the wavelength range of 200-500nm, high curing speed, excellent developing and picture completeness, high curing film hardness, and strong adhesive force on a substrate, can be applied in the fields of oil paint, coating, printing ink, a forming material and the like, and has relatively high technological and market competitiveness.

The invention relates to the field of coatings in the petrochemical industry, and particularly relates to a formula of a cationic reaction type undercoat. The cationic reaction type undercoat aims atthe defect that a coating for an external wall causes saltpetering and fades within a short period of time as the maintenance time and the maintenance degree of the cement base material are not enoughand the alkalinity or the salinity of a base material is too high. The technical scheme is as follows: the cationic reaction type undercoat comprises the following components: 51-60 wt% of water, 36-45 wt% of cationic emulsion, 1-2 wt% of a coalescing agent, 0.1-0.2 wt% of a wetting agent, 0.1-0.2 wt% of a defoaming agent, 1-1.5 wt% of an antifreezing agent, 0.1-0.3 wt% of an anticorrosion bactericide, and 0.3-0.5 wt% of a thickener. The cationic emulsion is a styrene / acrylate compound emulsion, and further comprises a cationic emulsifier. The cationic reaction type undercoat is suitable forcoating the external wall of a building.

The invention discloses a preparation method of modified montmorillonoid and modified montmorillonoid prepared by virtue of same as well as a modified montmorillonoid composite material. The modifiedmontmorillonoid is prepared by culturing montmorillonoid and microorganisms in a microorganism culture medium, separating solid from liquid, and finally drying the montmorillonoid. The montmorillonoidis expanded in a microorganism culture solution, the microorganisms, metabolites of the microorganisms (extracellular polymeric substances) and metal ions among the montmorillonoid layers react withone another, the distance among the montmorillonoid layers is increased, the montmorillonoid layers are even separated from one another, and the microorganisms and the metabolites form a compact organic membrane on the surface of a nanometer layer, so that the surface lipophilicity can be improved; and in addition, after the microorganisms are immobilized on the surface of the montmorillonoid, themicroorganisms react with cations, so that dense pores are formed on the surface and inside the montmorillonoid, the surface roughness can be improved, the porosity and the specific surface area canbe increased, and the activity of the montmorillonoid can be improved.

The invention discloses a paper water-resistant moisture-proof agent which comprises a monomer, a positive ion reaction type monomer, a non-ionic reaction type monomer, a positive ion emulgator, a non-ionic emulgator and hydrophobicity aids. The mass of the positive ion reaction type monomer is 5-20% that of the monomer, the mass of the non-ionic reaction type monomer is 2-4% that of the monomer, the mass of the positive ion emulgator is 1-3% that of the monomer, the mass of the non-ionic emulgator is 1-3% the mass of the monomer, and the mass of the hydrophobicity aids is 3-10% that of the monomer. The paper water-resistant moisture-proof agent prepared according to the ratio is good in performance, the inking performance is ensured, the paper product waterproofness is ensured, and the paper water-resistant moisture-proof agent is more suitable for modern papermaking technologies.

Stable, highly filled cationic dental compositions useful for the production of dental prostheses and dental restoration materials contain:(1) at least one compound which is reactive cationically when activated, advantageously at least one UV-and cationically reactive oxirane-functionalized silicone;(2) at least one dental filler, advantageously SiO2;(3) at least one organic polymer or copolymer dispersant having an amine index less than or equal to 100 mg of potassium hydroxide per gram of dispersant, advantageously a polyurethane / acrylate copolymer or alkylammonium salt thereof;(4) at least one cationic photoinitiator, advantageously iodonium borate; and(5) optionally, at least one photosensitizer.

Skin detergent hitherto available comprises a mixture of cream and powder, and coagulates and sets due to evaporation of water content to become an eraser's waste-like object, so that the eraser's waste-like object embraces the dirt and sets, thereby showing an effect of cleaning. But, this type of skin detergent has such defect that it causes users to feel mere setting of cream and does not enable users to readily fully feel the effect of cleaning.The present invention provides skin detergent which is applied on skin and rubbed to become an eraser's waste-like matter, so that dirt of skin, stale or old keratin, or the like are removed together with the eraser's waste-like matter, the skin detergent comprising at least water, polymer having a reactive group to react with cation, and cationic surface active agent.

The invention discloses a high-performance glass fiber coating and a preparation method thereof and aims to solve the technical problems of poor alkaline resistance and poor storage stability of the conventional urea-formaldehyde resin coating. The glass fiber coating comprises raw materials in parts by mass as follows: 40-70 parts of water, 20-30 parts of acrylic monomers, 1-5 parts of acrylic functional monomers, 10-30 parts of a modified urea-formaldehyde resin adhesive, 0.5-5 parts of a polymerization stabilizer, 0.1-1.5 parts of 2,2'-azobis(2-methylpropionamidine) dihydrochloride, 0.1-0.5parts of azobisisobutyronitrile, 0.1-3 parts of a cationic emulsifier or a cationic reactive emulsifier, 4-7 parts of cationic starch dispersion, 0.05-0.5 parts of an acid-base buffer agent and 0.1-5parts of a chain transfer auxiliary. According to the technical scheme, water resistance, alkaline resistance and storage stability of the coating can be improved effectively, the coating further hasperformance and advantages of urea-formaldehyde resin and acrylate resin, and overall performance of a polymer is improved.

The invention discloses a type of platinum (II) coordination compound with effective anti-cancer activity, which is characterized by using camphorate as a complex anion and a new platinum (II) coordination compound formed by reacting with a platinum amine complex cation, and its preparation method is disclosed. and the in vitro inhibitory effects of typical compounds on human leukemia cells, ovarian cancer cells, liver cancer cells, and lung cancer cells. The composition of this type of compound is represented by the following formula: ∴∴∴The camphorate radical in formula (1), formula (2) and formula (3) can be its DL racemate and D-type optical isomer [(1R , 3S)-(+)-camphorate] or L-type optical isomer [(1S, 3R)-(-)-camphorate]. The R groups in formula (1) are the same, which are hydrogen atoms and C 1-5 Alkyl or C 1-8 Oxaalkyl; cyclohexanediamine in formula (2) is 1,2-trans-cyclohexanediamine, two chiral carbon atoms (marked with * The absolute configuration of No.) is R configuration or S configuration; 4,5-di(aminomethyl)-2-alkyl-1,3-dioxolane in formula (3) represents R 1 and R 2 Same or different, respectively hydrogen atom or C 1-5 Alkyl group, or can be linked to one carbon atom to form a cycloalkyl group, two chiral carbon atoms (marked with * The absolute configuration of No.) is R configuration or S configuration. The platinum complex of the present invention includes all stereoisomers represented by the above chemical formula and mixtures thereof.

Skin detergent hitherto available comprises a mixture of cream and powder, and coagulates and sets due to evaporation of water content to become an eraser's waste-like object, so that the eraser's waste-like object embraces the dirt and sets, thereby showing an effect of cleaning. But, this type of skin detergent has such defect that it causes users to feel mere setting of cream and does not enable users to readily fully feel the effect of cleaning.The present invention provides skin detergent which is applied on skin and rubbed to become an eraser's waste-like matter, so that dirt of skin, stale or old keratin, or the like are removed together with the eraser's waste-like matter, the skin detergent comprising at least water, polymer having a reactive, group to react with cation, and cationic surface active agent.