130results about How to "Improve solution stability" patented technology

In its many embodiments, the present invention provides certain iminothiadiazine dioxide compounds, including compounds Formula (a) and include tautomers, solvates, prodrugs, esters, and deuterates thereof, and pharmaceutically acceptable salts of said compounds, tautomers, solvates, prodrugs, esters, and deuterates, wherein each of R1, R2, R3, R4, R5, R9, ring A, ring B, ring C, m, n, p, q, -L1-, -L2-, L3-, and L4- is selected independently and as defined herein. The compounds of the invention have, surprisingly and advantageously, improved solution stability. Pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other active agents), and methods for their preparation and use in treating pathologies associated with amyloid beta (Aβ) protein, including Alzheimers Disease, are also disclosed.

Graded absorption silicon based antireflective coating compositions are described.

The invention provides a multi-antenna attitude determining method based on a Beidou system. With the establishment and improvement of the Beidou satellite regional navigation system, the use of the Beidou satellite system for high-precision attitude determination has become one of the hot spots in the field of navigation. The method is based on the realization of the Beidou receiver hardware embedded platform and based on the three-antenna carrier phase data simultaneously observed by the Beidou receiver, the double-difference model is constructed and finally the high-precision attitude information is obtained. The present invention mainly makes innovation and improvement of the satellite selection strategy, the cycle slip detection method, the rough error rejecting and fuzziness calculation method, the base line verification method in the attitude determination flow. The method is highly modularized, supports various platforms, is particularly suitable for the embedded receiver platform, and has a wide application prospect.

In its many embodiments, the present invention provides certain iminothiadiazine dioxide compounds, including compounds Formula: (I) and tautomers and stereoisomers thereof, and pharmaceutically acceptable salts of said compounds, said tautomeros and said stereoisomers, wherein each of ring A, ring B, ring C, R2, R3, R4, m, n, p, and -L1- is as defined herein. The novel compounds of the invention may be useful as BACE inhibitors and / or for the treatment and prevention of various pathologies related thereto. Pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other active agents), and methods for their preparation and use, including Alzheimer's disease, are also disclosed.

A method is provided for preparing spray dried powder containing vancomycin hydrochloride. The method comprises providing a vancomycin hydrochloride solution with a chromatographic purity of at least 95%, adding an excipient to the vancomycin hydrochloride solution to form a mixture solution of the vancomycin hydrochloride solution and the excipient, concentrating the mixed solution of the vancomycin hydrochloride solution and the excipient to form a 20% to 30% vancomycin concentrate, filtering the vancomycin concentrate to form a final filtrate, and spray drying the final filtrate to form a spray dried vancomycin hydrochloride powder with EP impurity B level of not more than 1.5%.

The invention discloses an optical push-broom satellite in-orbit stepwise geometric calibration method based on a probe element direction angle. A probe element direction angle-based in-orbit geometric calibration model and a stepwise calibration resolving method are included. According to the method, a probe element direction angle model is used as a camera calibration model; calibration parameters comprise internal calibration parameters and external calibration parameters; and the external calibration parameters are resolved first and then the internal calibration parameters are resolved by using a stepwise calibration method, so that the condition that a reliable calibration result cannot be obtained due to strong correlation existing between the calibration parameters is avoided. By the effective optical push-broom satellite in-orbit geometric calibration method, in-orbit geometric calibration can be effectively performed on an optical push-broom satellite, and the geometric quality of image products is improved. Practice proves that the calibration method is feasible and effective, and the calibration result is stable, reliable and high in precision.

The present invention provides a conductive polymer material including (A) a π-conjugated polymer, (B) a dopant polymer which contains a repeating unit having a sulfo group and has a weight-average molecular weight in the range of 1,000 to 500,000, and (C) either or both of sulfonium salt compounds represented by the following general formulae (1-1) and (1-2). There can be provided a conductive polymer material that has low acidity, can suppress the gradual agglomeration of particles, and has excellent solution-stability.

The present invention provides a cellulose ester in which heat resistance under wet condition is compatible with both releasability and spinnability even when the amount of the residual solvent is small in a casting process. The cellulose ester fulfills the following formula: 0.5<(B) / (A)<1.5 wherein (A) and (B) represent the total amount (in terms of molar amount) of residual sulfuric acid in 1 gram of the cellulose ester and the total amount (in terms of molar amount) of calcium contained in 1 gram of the cellulose ester, respectively.

Methods for enhancing biocidal efficacies and product stability of lens care solutions comprising packaging such solutions in containers fabricated from poly(ethylene terephalate).

A conductive polymer material includes a π-conjugated polymer, dopant polymer which contains a repeating unit having a sulfo group and has a weight-average molecular weight in the range of 1,000 to 500,000, and amphoteric ion compound represented by the following general formula (1),wherein RC1 and RC2 independently represent a linear, branched, or cyclic alkyl group having 1 to 10 carbon atoms, a linear, branched, or cyclic alkoxy group having 1 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms, an acyloxy group having 2 to 10 carbon atoms, an alkoxycarbonyl group having 2 to 10 carbon atoms, a hydroxyl group, a nitro group, a halogen atom; and “m” and “n” are each an integer of 0 to 4. A conductive polymer material with low acidity that suppresses the agglomeration of particles with overtime, with an excellent stability in a solution state can be provided.

The invention relates to an antireflective coating composition comprising a crosslinker and a crosslinkable polymer capable of being crosslinked by the crosslinker, where the crosslinkable polymer comprises a unit represented by structure (1):A-Bn  (1)where A is a fused aromatic ring and B has a structure (2),where R1 is C1-C4alkyl and R2 is C1-C4alkylThe invention further relates to a process for forming an image using the composition.

An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye in the form of a complex of at least one azo dye denoted by general formula (1) and at least one metal ion:wherein, in general formula (1), Q1 denotes an atom group forming a ring with two adjacent carbon atoms and a carbon atom bonded to —N═N-group, G1 denotes a heterocyclic group or carbocyclic group, and R1 denotes an alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.

The invention relates to an antireflective coating composition comprising a crosslinker and a crosslinkable polymer capable of being crosslinked by the crosslinker, where the crosslinkable polymer comprises a unit represented by structure (1):A-B—C  (1)where A is a fused aromatic ring, B has a structure (2), and C is a hydroxybiphenyl of structure (3)where R1 is C1-C4alkyl and R2 is C1-C4alkyl.The invention further relates to a process for forming an image using the composition.

The invention relates to a method of treating a viral infection caused by or associated with SARS-CoV-2 in a subject, the method comprising administering to the subject by inhalation intraorally and / or intranasally a therapeutically effective amount of a formulation comprising niclosamide, or a pharmaceutically acceptable salt thereof, and a cyclodextrin.

The invention relates to an antireflective coating composition comprising a crosslinker and a crosslinkable polymer capable of being crosslinked by the crosslinker, where the crosslinkable polymer comprises a unit represented by structure (1):[-A-B-C-]  (1)where A is a fused aromatic ring, B has a structure (2), and C is a hydroxybiphenyl of structure (3)where R1 is C1-C4alkyl and R2 is C1-C4alkyl.The invention further relates to a process for forming an image using the composition.

The invention discloses a vegetation parameter inversion method, terminal equipment and a storage medium. The method comprises the following steps of: 1, carrying out preprocessing and polarization interference processing on two SAR images so as to obtain a single-baseline complete polarization multi-correlation coefficient observation value; 2, determining the size of a block participating in joint calculation, namely the number of pixel points participating in joint calculation, and setting an initial value of unknown parameter inversion; 3, constructing an observation equation based on thecomplete polarization multi-correlation coefficient of a RVoG model and all pixels; and 4, according to the obtained parameter initial values, carrying out vegetation height inversion by a nonlinear iterative algorithm. According to the invention, the rank deficient problem in application of the RVoG model to invert the vegetation height is solved, and the resolving stability during parameter inversion solving is improved.

The present invention relates to a novel absorbing antireflective coating composition comprising a novel crosslinkable polymer comprising at least one repeat unit (A) having structure (1), at least repeat (B) unit having a structure (2), and at least one repeat unit (C) having structure (3)where D is a direct valence bound or C(R1)(R2) methylene moiety where R1 and R2 are independently H, C1-C8 alkyl, C3-C24 cycloalkyl or C6-C24 aryl; Ari, Arii, Ariii and Ariv are independently phenylenic and naphthalenic moiety, R3 and R4 are independently hydrogen or C1-C8 alkyl; and R5 and R6 are independently hydrogen or C1-C8 alkyl; and a solvent. The invention also relates to a process for forming an image using the novel antireflective coating composition.

This invention relates to an inhibited non-solubilized granular starch modified by less than 5% of a carboxylated polymer. In addition, a process is provided wherein a non-solubilized, substantially granular starch is mixed with a carboxylated polymer, dried to form a starch / carboxylated polymer blend and then physically treated to form a starch / carboxylated polymer composite. Further, this invention relates to the improved industrial and food products prepared from these starch / carboxylated polymer composites.

In its many embodiments, the present invention provides certain iminothiadiazine dioxide compounds, including compounds Formula (I): and tautomers and stereoisomers thereof, and pharmaceutically acceptable salts of said compounds, said tautomeros and said stereoisomers, wherein each of W, Z, R1H, R2, R3, R4, ring A, ring B, m, n, p, and -L1- is as defined herein. The novel compounds of the invention have surprisingly been found to exhibit properties which are expected to render them advantageous as BACE inhibitors and / or for the treatment and prevention of various pathologies related thereto. Pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other active agents), and methods for their preparation and use, including Alzheimer's disease, are also disclosed.

Provided are a reducing electroless silver plating solution and a reducing electroless silver plating method using the silver plating solution, the reducing electroless silver plating solution being capable of preventing decomposition of silver in the plating solution thereby to maintain stability of the solution and also being capable of preventing excessive roughening of an underlying metal or the like thereby to form a plating film having good film characteristics and a good appearance. The reducing electroless silver plating solution according to the present invention comprises a water-soluble silver salt and a reducing agent, wherein cyanide ions in a concentration of 0.006×10−3 mol / L to 12.5×10−3 mol / L are contained.

A metal complex represented by the following formula (1):wherein R1 to R6, R8 and R11 to R20 represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkoxy group, an arylalkylthio group, an acyl group, an acyloxy group, an amide group, an acid imide group, an imine residue, a substituted amino group, a substituted silyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a monovalent heterocyclic group, a heteroaryloxy group, a heteroarylthio group, an arylalkenyl group, an arylalkynyl group, a substituted carboxyl group or a cyano group;Z1 to Z5 represent —C(R*)═ or a nitrogen atom, wherein R* represents a hydrogen atom or a substituent, provided that at least two of Z1 to Z5 are nitrogen atoms;m represents 1 or 2.

The invention discloses a multi-baseline PolInSAR vegetation parameter inversion method considering the temporal decoherence factor. The method comprises the following steps: 0, introducing the temporal decoherence factor into a RVoG model to obtain a RVoG expansion model considering the temporal decoherence factor; 1, carrying out processing and polarimetric interferometry processing on a multi-baseline polarimetric interferometry SAR (Synthetic Aperture Radar) image of vegetation to obtain a multi-baseline multi-polarization multiple correlation coefficient observed value; 2, setting and calculating the vegetation parameter inversion initial value of the RVoG expansion model; 3, selecting one of N baselines as a reference baseline, and considering that the influence of the temporal decoherence factor does not exist; and 4, matching the observed value with the RVoG expansion model, building an observation equation, and finally performing vegetation parameter inversion by a nonlinear iterative algorithm according to the parameter initial value obtained above. The method can improve the accuracy of vegetation parameter inversion, and is easy to implement.