6511 results about "Divalent" patented technology

An organic electroluminescent device having a pair of electrodes and at least one organic layer interposed between the pair of electrodes, in which the at least one organic layer contains at least one compound represented by formula (I):

• • wherein, Z¹ and Z² each independently represent a nitrogen-containing aromatic six-membered ring coordinated to the platinum through a nitrogen atom; Q¹ represents a group of atoms necessary for forming, together with the —C—C—, a nitrogen-containing aromatic five-membered ring; L¹ represents a single bond or a divalent linking group; and n is 0 or 1.

Provision of a novel platinum complex which is useful as a material for a light-emitting device of good light emission characteristic and light emission efficiency, and a novel light-emitting material that may be utilized in various fields.

A platinum complex represented by the following general formula (1):

(in which two rings of ring A, ring B, ring C, and ring D represent nitrogen-containing heterocyclic rings which may have a substituent and the remaining two rings of them represent aryl rings or hetero aryl rings which may have a substituent, the ring A and the ring B, the ring A and the ring C or/and the ring B and the rind D may form condensed rings. Two of X¹, X², X³, and X⁴ represent nitrogen atoms coordination bonded to a platinum atom and the remaining two of them represent carbon atoms or nitrogen atoms. Q¹, Q², and Q³ each represents a bond, oxygen atom, sulfur atom or bivalent group, two of Z¹, Z², Z³, and Z⁴ represent coordination bonds, and the remaining two of them represent covalent bonds, oxygen atoms or sulfur atoms), and a light-emitting device containing the platinum complex.

The invention relates to an aqueous emulsion polymerization of fluorinated monomers using perfluoropolyethers of the following formula (I) or (II). In particular, the perfluoropolyether surfactants correspond to formula (I) or (II)

CF₃—(OCF₂)_m—O—CF₂—X  (I)

wherein m has a value of 1 to 6 and X represents a carboxylic acid group or salt thereof,

CF₃—O—(CF₂)₃—(OCF(CF₃)—CF₂)_z—O-L-Y  (II)

wherein z has a value of 0, 1, 2 or 3, L represents a divalent linking group selected from —CF(CF₃)—, —CF₂— and —CF₂CF₂— and Y represents a carboxylic acid group or salt thereof. The invention further relates to an aqueous dispersion of a fluoropolymer having the aforementioned perfluoropolyether surfactant(s).

The present invention relates to heterocyclic radicals or diradicals, the dimers, oligomers, polymers, dispiro compounds and polycycles thereof, to the use thereof, to organic semiconductive materials and to electronic and optoelectronic components.

A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, where said pseudo-living polymer is characterized by having greater than about 85 percent of the polymer in the cis microstructure and less than about 3 percent of the polymer is in the 1,2- or 3,4-microstructure, and reacting the pseudo-living polymer with at least one functionalizing agent defined by the formula (I) or (II)

where Z is a substituent that will react or interact with organic or inorganic fillers; R¹ is a single bond or a divalent organic group; R² is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R¹³ or R¹⁴; R³ is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R⁴ or R⁵; R¹³ is a single bond, a divalent organic group, or a trivalent organic group that forms a cyclic organic group with R² or R¹⁴; R⁴ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R³ or R⁵; R¹⁴ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R² or R¹³; and R⁵ is a monovalent organic group or a divalent organic group that forms a cyclic organic group with R³ or R⁴; with the proviso that each group attached to the imino carbon is attached via a carbon atom and R¹, R², R³, R⁴, R⁵, R¹³, R¹⁴ and Z are substituents that will not protonate a pseudo-living polymer.

A triazine compound of the formulawherein Ar1, Ar2, Ar3, and Ar4 are each an aryl, aliphatic, or a mixture of aryl and aliphatic; R1 and R2 are selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, halogen, and cyano; and L is L(n) wherein n is zero or 1, said L being a divalent group.

A liquid crystal composition comprises liquid crystal molecules and an alignment promoter. The alignment promoter is represented by the formula (I). <paragraph lvl="0"><in-line-formula>(Hb-L1-)nBl (I) </in-line-formula>In the formula (I), Hb is an aliphatic group having 4 to 40 carbon atoms, an aromatic group having 6 to 40 carbon atoms or an aliphatic substituted oligosiloxanoxy group having 1 to 40 carbon atoms. L1 is a single bond or a divalent linking group, and n is an integer of 2 to 12. Bl is an n-valent group comprising at least two rings.

The invention relates to compounds and methods for targeting radionuclide-based imaging agents to cells having receptors for a vitamin, or vitamin receptor binding derivative or analog thereof, by using such a vitamin as the targeting ligand for the imaging agent. The invention provides a compound of the formula

for use in such methods. In the compound, V is a vitamin that is a substrate for receptor-mediated transmembrane transport in vivo, or a vitamin receptor binding derivative or analog thereof, L is a divalent linker, R is a side chain of an amino acid, M is a cation of a radionuclide, n is 1 or 0, K is 1 or 0, and the compound can be in a pharmaceutically acceptable carrier therefor. The vitamin-based compounds can be used to target radionuclides to cells, such as a variety of tumor cell types, for use in diagnostic imaging of the targeted cells.

The water absorbent resin composition and the production method thereof according to the present invention are characterized by including: water absorbent resin particles having an internal cross-linked structure obtained by polymerizing a water-soluble unsaturated monomer; a nitrogenous ketone compound (A) (containing no carboxyl group) having a structure represented by formula (1); and a bivalent and/or trivalent and/or tetravalent water-soluble metal salt, wherein a total amount of the nitrogenous ketone compound (A) and the bivalent and/or trivalent and/or tetravalent water-soluble metal salt ranges from 0.01 to 100 parts by mass with respect to 100 parts by mass of the water absorbent resin particles, thereby providing a water absorbent resin composition, having an excellent absorption capacity represented by a centrifuge retention capacity (CRC), an absorbency against pressure of 4.83 kPa (AAP) etc., having excellent liquid permeability and liquid diffusion properties, having excellent fluidity at the time of moisture absorption, having an excellent damage resistance property, effectively suppressing occurrence of dusts, hardly bringing about permeation of added metal compounds into water absorbent resin particles, hardly bringing about segregation of added metal compounds.

This invention relates to the field of recombinant antibody technology. It provides novel recombinant IgY antibody constructs for diagnostic and therapeutical applications. The bivalent antibody constructs display a heterotetrameric or homodimeric format stabilized by disulfide bonds. The constant heavy chain domains C_H2-C_H4 are partly or completely of avian origin, whereas the V_H, V_L, C_L, and C_H1 domains as well as the hinge region may be of avian origin or derived from any other species. The invention allows to combine the advantages of IgY antibodies with those of established mammalian monoclonal antibodies. IgY antibody constructs comprising nonglycosylated IgY constant heavy chain domains allow to reduce unwanted interactions with C-type lectins, e.g., in human sera. Furthermore, chimeric IgY antibody containing mammalian V_H, V_L, C_L, and C_H1 domains as well as a mammalian hinge region provide a higher molecular stability than IgY antibodies in acidic conditions and, thereby, are especially suited for peroral therapeutic applications.

The invention describes a vitamin receptor binding drug delivery conjugate, and preparations therefor. The drug delivery conjugate consists of a vitamin receptor binding moiety, a bivalent linker (L), and a drug. The vitamin receptor binding moiety includes vitamins, and vitamin receptor binding analogs and derivatives thereof, and the drug includes analogs and derivatives thereof. The vitamin receptor binding moiety is covalently linked to the bivalent linker, and the drug, or the analog or the derivative thereof, is covalently linked to the bivalent linker, wherein the bivalent linker (L) includes components such as spacer linkers, releasable linkers, and heteroatom linkers, and combinations thereof. Methods and pharmaceutical compositions for eliminating pathogenic cell populations using the drug delivery conjugate are also described.

A process and system for purifying water is disclosed. For example, in one embodiment, the process may be used to remove a divalent salt, such as calcium sulfate, from a water source in order to prevent the divalent salt from precipitating during the process. The water source, for instance, may be fed to an ion separating device, such as an electrodialysis device. In the electrodialysis device, an ion exchange takes place between the divalent salt and another salt, such as a monovalent salt to produce two concentrated salt streams that contain salts having greater solubility in water than the divalent salt. In one embodiment, the two salt streams that are produced may then be combined to precipitate the divalent salt in a controlled manner. During the process, various other components contained within the water feed stream may also be removed from the stream and converted into useful products. In one particular embodiment, the process is configured to receive a byproduct stream from a reverse osmosis process.

A platinum complex represented by the general formula (1) below, useful as a phosphorescence emission material, a tetradentate ligand useful for synthesizing the platinum complex, and a light-emitting device containing at least one of the platinum complex.

wherein ring B represents a nitrogen-containing aromatic heterocyclic ring; rings A, C and D each independently represent an aromatic or aromatic heterocyclic ring, while either of the rings C and D represents five-membered ring, the other represents a five- or six-membered ring; R^A, R^B, R^C, and R^D respectively represent substituents on the rings A, B, C, and D; two of X^A, X^B, X^C, and X^D represent a nitrogen atom that may be bound with the platinum atom by a coordinate bond, the others each independently represent a carbon atom or nitrogen atom that may be bound with the platinum atom by a covalent bond; Q represents a bivalent atom or atomic group bridging the rings B and C; and Y^C and Y^D each independently represent a carbon atom or nitrogen atom.

Ansa bis( mu -substituted) Group 4 metal and aluminum compounds comprising a single Group 4 metal atom and two aluminum metal atoms corresponding to the formula: wherein: L' is a pi -bonded group, M is a Group 4 metal, J is nitrogen or phosphorus; Z is a divalent bridging group causing the complex to have an ansa structure, R' is an inert monovalent ligand; r is one or two; X independently each occurrence is a Lewis basic ligand group able to form a mu -bridging ligand group, and optionally the two X groups may be joined together, and A' independently each occurrence is an aluminum containing Lewis acid compound that forms an adduct with the metal complex by means of the mu -bridging groups, and optionally two A' groups may be joined together thereby forming a single difunctional Lewis acid containing compound, and a method of preparation comprising contacting a charge-neutral Group IV metal coordination complex having at least two Lewis basic groups with at least two molar equivalents of charge-neutral aluminum coordination complexes having Lewis acidic aluminum atoms such that at least two of the aluminum atoms of the aluminum coordination complexes bond to at least two of the Lewis basic groups of the Group IV coordination complex.

A compound of formula (IV): O is a solid support; L is a linking group or a single bond; X' is selected from CO, NH, S, or O; A is O, S, NH, or a single bond; R2 and R3 are independently selected from: H, R, OH, OR, =O, =CH-R, =CH2, CH2-CO2R', CH2-CO2H, CH2-SO2R, O-SO2R, CO2R, COR, CN and there is optionally a double bond between C1 and C2 or C2 and C3; R6, R7, and R9 are independently selected from H, R, OH, OR, halo, nitro, amino, Me3Sn; R11 is either H or R; Q is S, O or NH; R10 is a nitrogen protecting group; and Y is a divalent group such that HY=R, and other related compounds and collections of compounds.

A method of thermally processing a tobacco material is provided, the method including the steps of (i) mixing a tobacco material, water, and an additive selected from the group consisting of lysine, glycine, histidine, alanine, methionine, glutamic acid, aspartic acid, proline, phenylalanine, valine, arginine, di- and trivalent cations, asparaginase, saccharides, phenolic compounds, reducing agents, compounds having a free thiol group, oxidizing agents, oxidation catalysts, plant extracts, and combinations thereof, to form a moist tobacco mixture; (ii) heating the moist tobacco mixture at a temperature of at least about 60° C. to form a heat-treated tobacco mixture; and (iii) incorporating the heat-treated tobacco mixture into a tobacco product. Heat-treated tobacco composition prepared according to the method are also provided, such as heat-treated smokeless tobacco composition comprising a tobacco material, water, flavorant, binder, and filler, the heat-treated smokeless tobacco composition having an acrylamide content of less than about 2000 ppb.

The invention discloses a precipitation method for preparing nanometer level iron phosphate lithium coated with carbon. The method comprises the following steps: firstly, weighing iron salt, deionized water and a compound of metallic elements; after the stirring and the mixing are performed, adding a phosphorous compound and citric acid diluted with water to the mixture; after the stirring is performed again, adding a precipitation agent to the mixture and controlling to the neutrality; stirring to react in a container, and after the static placement, respectively adding the deionized water, a carbon source and lithium salt to mix uniformly after the precipitate is filtered and washed; stirring again to react, and drying the water at 30 to 160 DEG C and warming up at the heating rate under the protection of non-oxidized gas after a product is crashed; baking at a constant temperature of 450 to 850 DEG C, cooling down to a room temperature at a cooling rate or with a stove, and finally obtaining the nanometer level ferric phosphate lithium coated with the carbon after crashing is performed. The precipitation method has the advantage that the raw material cost and the processing cost are low because bivalent iron is taken as the raw material. The iron phosphate lithium prepared by using the process has the characteristics of good physical processing performance and good electrochemistry performance, and is suitable for industrialized production.

A stable solid pharmaceutical composition consisting essentially of an effective amount of a salt of formula (II)

together with an alkaline-reacting component maintaining the pH preferably above 8, or a salt with a divalent metal cation; and at least one pharmaceutical excipient; said salt of formula (II) being essentially stable during storage at room temperature for a period of at least 3 years. A process for stabilizing the salt of formula (II). A crystalline salt of formula (II) and a process for preparing said salt.

Novel two-phase yellow phosphors are disclosed having a peak emission intensity at wavelengths ranging from about 555 nm to about 580 nm when excited by a radiation source having a wavelength ranging from 220 nm to 530 nm. The present phosphors may be represented by the formula a[Sr_x(M1)_1-x]_zSiO₄●(1-a)[Sr_y(M2)_1-y]_uSiO₅:Eu²⁺D, wherein M1 and M2 are at least one of a divalent metal such as Ba, Mg, Ca, and Zn, the values of a, x, y, z and u follow the following relationships: 0.6≦a≦0.85; 0.3≦x≦0.6; 0.85≦y≦1; 1.5≦z≦2.5; 2.6≦u≦3.3; and Eu and D each range from 0.001 to about 0.5. D is an anion selected from the group consisting of F, Cl, Br, S, and N, and at least some of the D anion replaces oxygen in the host silicate lattice of the phosphor. The present yellow phosphors have applications in high brightness white LED illumination systems, LCD display panels, plasma display panels, and yellow LEDs and illumination systems.