131 results about "CHROMIUM COMPLEX" patented technology

A method for inhibiting drug-induced insulin resistance is provided which includes administering a dietary chromium complex to an individual receiving a contemporaneous dose of a drug that induces insulin resistance, wherein the amount of chromium complex administered is an amount effective to inhibit the development of insulin resistance. Advantageously, the amount of chromium complex administered per day is between about 300 and 1,000 micrograms per day. Compositions including a drug which induces insulin resistance in combination with a chromium complex are similarly described.

A composition for the treatment, prevention or management of a condition in primates, especially humans comprising a phenolic antioxidant-chromium complex.

The invention provides a sulfate trivalent-chromium chromeplate electroplating solution and an application method thereof. Amine compounds and organic compounds containing nitrogen, sulfur, acetylenicalcohol and the like, which are used as brighteners, are added into a basic electroplating solution containing chromium sulfate and conducting salt; hydroxylamine hydrochloride or ascorbic acid is added for stabilizing trivalent chromium in the electroplating solution, substances such as polyethers and polyalcohols are added as surfactants, and low carbon chain material complexing agents such asoxalic acid, propionic acid, glycine and succinic acid are added for complexing trivalent chromium ions, so that the cathodic reduction of the trivalent chromium complex ions is greatly promoted, andthe tolerance of the electroplating solution to impurities and the stability of the electroplating solution are further improved; the brighteners and the surfactants also can promote the cathodic reduction of the trivalent chromium ions, and appropriate processing parameters are cooperatively set, so that the reaction effects of all components can be greatly improved; the sulfate trivalent-chromium chromeplate electroplating solution can enable plating to have excellent appearance, morphology, structure, binding force and corrosion resistance, and enables the plating not to have surface defects such as pinholes and stripes.

Complex metal-containing matrices, and especially chromium-containing matrices are produced from a water soluble preparation that is derived from an item suitable for animal (and most typically human) consumption. In particularly contemplated aspects, the water soluble preparation is an extract or filtrate of disintegrated brewer's yeast, and the so prepared complex mixture is combined with a chromium-3⁺ ions.

Provided is photosensitive silver paste, comprising an organic carrier, and aluminum powder dispersed in the organic carrier. The organic carrier comprises organic resin, an active diluent, a photoinitiator and a solvent, and also comprising an adhesion promoter which comprises one or more than one selected from the group of a phosphorus containing compound, a chromium complex coupling agent, a titanate coupling agent, and an aluminate coupling agent. The photosensitive silver paste is provided with the adhesion promoter, thereby effectively improving the adhesive force of silver paste on a substrate surface, accordingly reducing a reject ratio in the preparation of a conducting circuit by common photosensitive silver paste, increasing a yield rate, and reducing cost. In addition, the invention provides the touch screen prepared by the photosensitive silver paste, and the electronic apparatus employing the touch screen.

The invention relates to a preparation method of a trivalent chrome complex, in particular to a passivation processing solution for an environment-friendly hot dip aluminum-zinc plate and a passivation processing solution with excellent corrosion resistance. The trivalent chrome complex for the hot dip aluminum-zinc plate is prepared from water, hexavalent chromium, reducing agents and acidic materials according to the molar ratios of 100:0.2-1.5:0.1-4.5:0.2-7.5. The trivalent chrome complex for the hot dip aluminum-zinc plate has excellent corrosion resistance. Corrosion resistance of a solidified coating reaches the passivation level of hexavalent chromium, the requirement for environmental friendliness can be met, harmful elements like hexavalent chromium are not contained, and the trivalent chrome complex does not harm the environment or human bodies.

The invention relates to a production method of a colorful waterborne mental paint. The method comprises the following steps: step 1. acrylate and/or styrene-acrylic resin are/is provided as main material; step 2. any one or more than one mental chromium complex dye, bronze powder, aluminium silver powder and pearls powder is provided as main color; step 3. either ethanol or methanol is provided as solvent; step 4. a certain amount of main color is added in certain amount of solvent to form a colorful solution; step 5. a certain amount of the main material is added in the colorful solution and evenly stirred.

The invention discloses a multi-element gas co-infiltration strengthening system and a process thereof, and belongs to the technical field of workpiece heat treatment. According to the multi-element gas co-infiltration strengthening system and the process thereof, the problems of poor environmental protection, poor infiltration effect and single infiltration layer of traditional heat treatment aresolved. The multi-element gas co-infiltration strengthening system comprises a feeding unit, an air exchange unit, a heating pre-infiltration unit, a multi-element gas co-infiltration strengthening unit, a cooling protection unit and a discharge unit connected in sequence. By means of the multi-element gas co-infiltration strengthening system and a process thereof the, through the cooperation ofeach unit, a traditional acid anticorrosion process is replaced, so that the environmental protection is improved; through the air exchange unit, the air participation is avoided, so that the sufficiency of polyatomic infiltration is improved; through the combination of the heating pre-infiltration unit and microwave radiation, the structure of the surface of a lamp post is changed, so that the infiltration speed and depth of subsequent nitrogen, sulfur and chromium elements are improved; and in the strengthening treatment of multi-element gas co-infiltration, firstly, ammonia atmosphere nitriding treatment is adopted, and then gaseous carbon sulfur chromium complex is released by an accelerating infiltration ball B, so that the carburizing, sulphurizing and chromizing co-infiltration treatment is achieved, the structure of the infiltration layer is complex and diversified, and the hardness of the lamp post is improved.

Compositions having hypoglycemic and/or hypolipidemic activity are isolated from natural sources including yeast and Saltbush (Atriplex halmus). In addition, synthetic chromium complexes were prepared. Compositions possessing hypoglycemic and/or hypolipidemic activity with or without chromium containing natural and synthetic compounds are formulated for use in animals and humans. Methods for use of the compositions alone, or in combination with antioxidant agents, for regulating glucose and lipid levels in diabetes, cardiovascular diseases, inflammatory and cell proliferative diseases and in skin conditions, are presented.

Compositions comprising chromium complexes such as chromium picolinate or chromium nicotinate are administered to a subject presenting with Polycystic Ovary Syndrome. The compositions may further comprise at least one of a chelating agent, cyclooxygenase inhibitor, a mucolytic, and/or a salicin-containing herb.

The invention relates to a process for producing a low-chromium complex alloy grinding ball. The process comprises the steps of melting, pouring, casting a metal mold and tempering, chemical components of the low-chromium complex alloy grinding ball are reasonably designed, and metal mold casting and tempering are carried out, so that the internal and external quality of the grinding ball can be improved, the product does not have the casting defects, such as sinkholes, pores, looseness and the like, the broken rate and no circularity of the grinding ball can be reduced, the fatigue impact resistance and wear resistance of the grinding ball can be improved, the product yield can be remarkably improved, the production process can be simplified, and the production cost can be reduced.

The invention relates to a caliper type chromium complex and a preparation method and application thereof, and belongs to the technical field of catalysts. The caliper type chromium complex is a [NCN]-ligand-based caliper type chromium complex. The preparation method comprises the following steps of: adding hexane solution of butyl lithium into tetrahydrofuran solution of a ligand dropwise for reaction; adding a tetrahydrofuran adduct of chromium trichloride or chromium dichloride; and heating the mixture to room temperature naturally and reacting to obtain the caliper type chromium complex. The ligand can be 2,6-bis(N-2,6- phenyl)imido bromobenzene. The caliper type chromium complex, alkyl aluminum and organic boron salt serving as catalysts are used for catalyzing selective polymerization of isoprene or butadiene. The caliper type chromium complex has high stability and is convenient to prepare; the catalytic system can be used for selectively catalyzing polymerization of the isoprene or the butadiene, and has low using amount of a cocatalyst, high polymerization speed, high conversion rate and high anti-1,4 selectivity; and the caliper type chromium complex can be applied actually by replacing natural trans-1,4 rubber.

The invention discloses an insulating binder for coating amorphous and nanocrystalline magnetic powder. The insulating binder comprises an inorganic binder, an inorganic binder and a surface modification material, wherein the surface modification material is one or more of an organic chromium complex, silanes, titanate esters and an aluminate compound. The invention further discloses a method for carrying out coating on the amorphous and nanocrystalline magnetic powder by the insulating binder. The method comprises a pretreatment step, a primary baking step, a powder insulating coating treatment step and a secondary drying step. According to the insulating binder and the coating method disclosed by the invention, the overall performance of an amorphous and nanocrystalline magnetic powder core is improved; and the insulating binder has the advantages of high magnetic conductivity and low loss at a high frequency; and in addition, the amorphous and nanocrystalline magnetic powder core obtained by the method has excellent heat stability and mechanical strength.

The invention relates to a dual-core chromium catalyst for ethylene oligomerization and a preparation method thereof; the dual-core chromium catalyst contains a transition metal chromium complex with a dual-core structure and an organic metal compound activator, the transition metal chromium complex with the dual-core structure is a compound having the general formula (I) defined in the specification, wherein R1, R2, R3 and R4 are connection groups and can be arbitrarily selected from alkyl, naphthenic group, aryl or heteroatomic groups containing O and S having a chain base structure with 1-6 atoms, R4, R5 and R6 are arbitrarily arene or alkane substituents, and CrX is CrCl2, CrCl3, Cr(acac)3, chromium 2-ethylhexanoate or Cr(CO)6. The catalyst has the catalytic activity of greater than 4.92*10<6> g polymerization product*mol<-1> Cr*h<-1>, and the selectivity of linear alpha-olefin in products is more than 98%. The catalyst composition has the characteristics of simple preparation method, high catalytic activity, and fewer C1-C4 alkanes and high-polymerized products in the products.

The invention discloses an outdoor overhead ageing-resistant insulating polyolefin cable material and a preparation method thereof. The outdoor overhead ageing-resistant insulating polyolefin cable material comprises, by weight, 60-80 parts of ethylene-vinyl acetate copolymer, 30-40 parts of chlorosulphonated polyethylene, 4-6 parts of isopropyl phenyl diphenyl phosphate, 4-5 parts of acetyl tri-n-butyl citrate, 8-10 parts of magnesium hydroxide, 40-50 parts of di-iso-decylphthalate, 6-8 parts of butadiene triethoxy silane, 2-4 parts of organic chromium complex, 6-8 parts of lead sulfate tribasic, 5-7 parts of p-phenylenediamine, 30-40 parts of nano calcium carbonate, 6-10 parts of beta-diketone, 12-14 parts of ammonium polyphosphate, 7-8 parts of silicone emulsion, 5-7 parts of fluoro-alkyl polyether modified polysiloxane, 7-9 parts of zinc stearate, 5-8 parts of nano calcium superoxide, 6-9 parts of paraffin and 8-12 parts of hexadecyl dimethyl amine. According to the outdoor overhead ageing-resistant insulating polyolefin cable material and the preparation method thereof, the added di-iso-decylphthalate plasticizer and the ethylene-vinyl acetate copolymer are matched, in this way, the aging resistance is improved, the processability is also improved, and the flexibility of a cable is improved; meanwhile, the ammonium polyphosphate has the condensation and phase neutralizing functions, and an extremely good frame retardant effect is achieved through the combination of the ammonium polyphosphate and the magnesium hydrate; the added chlorosulphonated polyethylene has the wear resistance, electric insulation resistance and other characteristics.