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Patent Name:Monocyclopentadienes catalyst for polymerization of olefin and preparaing method thereof
Country:[CN] Patent ID:[00100714]
Remarks: The catalyst system consists of Ti or Zr containing organic compound as main catalyst and alkoxy aluminium as cocatalyst. The main catalyst is obtained through reaction of indenyl substituted beta-diketone with TiC14 or ZrC14. The catalyst system has high catalytic olefine polymerizing activity and the preparation process is simple and high in yield and is suitable for industry use.
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Patent Name:Photocatalyst capable of magnetic separating and preparation therefor
Country:[CN] Patent ID:[98101176]
Remarks: The present invention relates to a magnetic separable photocatalyst and its preparation method. Said photocatalyst comprises magnetic carrier and semiconductor nano-particles, their weight ratio is 3 : 1-1 : 4, in which the magnetic carrier is a material with ferromagnetism, and the semiconductor nano-particles is a kind of semiconductor material with photocatalytic activity. Said invention uses sol-gel method or solid particle mixing method to load the semiconductor nano-particles on the magnetic material, so that the semiconductor nano-photocatalyst can be effectively separated out from the solution after reaction through added magnetic field, and can be repeatedly used.
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Patent Name:Plants characterized by an increased content of methionine and related metabolites, methods of generating same and uses thereof
Country:[US] Patent ID:[20060107342]
Remarks: A method of increasing methionine and/or methionine related metabolites in a plant is provided. The method is effected by expressing within the plant a cystathionine .gamma.-synthase encoded by a polynucleotide mutated in, or lacking, a region encoding an N-terminal portion of said cystathionine .gamma.-synthase, said region being functional in downregulating an activity of said cystathionine .gamma.-synthase in the plant.
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Patent Name:Promoter, promoter control elements, and combinations, and uses thereof
Country:[US] Patent ID:[20060107346]
Remarks: The present invention is directed to nitrogen responsive promoter sequences and promoter control elements, polynucleotide constructs comprising the nitrogen responsive promoters and control elements and methods of identifying the nitrogen responsive promoters, control elements, or fragments thereof. The invention further relates to the use of the present nitrogen responsive promoters or promoter control elements to modulate transcript levels.
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Patent Name:Method and machine for identifying a chemical compound
Country:[US] Patent ID:[188594]
Remarks: The present invention is designed to efficiently calculate isotopic distribution in order to simulate mass spectra data for any chemical compound of interest. The simulated spectra considers the various isotopes of the compound based upon a probability calculation that takes into consideration the natural abundance of each isotope of individual elements of the compound. The probability calculation generates a relative probability associated with each isotope species of the subject compound. The simulated spectra are displayed on an x-y coordinate illustrating the calculated formula weight on the abscissa (x-axis) and the intensity of the specific species on the ordinate (y-axis). This theoretical data is then compared to experimental data taken from a mass spectrometer in order to identify the chemical compound at issue.
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Patent Name:Method for purifying recombinant proteins expressed as insoluble aggregates
Country:[DK] Patent ID:[6,900,034]
Remarks: The invention relates to a method for solubilising and purifying recombinant proteins which are expressed in bacterial host cells and are deposited as insoluble aggregates (inclusion bodies). The purification is based on conversion of the inclusion bodies into soluble forms using organic denaturing reagents and using chromatographic methods. Inorganic, alkaline, salt-containing eluents are selected here which, after purification is complete, enable the recombinant proteins, after neutralisation, to be made available in a form which can be employed directly for medical use and is physiologically acceptable. The method is particularly suitable for purifying allergens and allergen fragments.
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Patent Name: Process of purifying vancomycin hydrochloride
Country:[KG] Patent ID:[7,018,814]
Remarks: Provided is a method of purifying a vancomycin from a fermentation broth of a microorganism containing vancomycin, including passing the fermentation broth of a microorganism containing vancomycin through a strong acid cation exchange resin, a weak base anion exchange resin, alumina and a hydrophobic absorbent resin sequentially.
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Patent Name:Direct encapsulation of biomacromolecules in surfactant templated mesoporous and nanoporous materials
Country:[US] Patent ID:[6,989,254]
Remarks: Biomacromolecules encapsulated or immobilized within mesoporous or nanoporous materials via surfactant-templated sol-gel reactions and methods for production of these encapsulated or immobilized biomacromolecules are provided.
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Patent Name:Medical device comprising a bio-compatible polymeric product with a layered structure
Country:[US] Patent ID:[530505]
Remarks: Disclosed is a method and a medical device comprising a bio-compatible polymeric product with a layered structure comprising at least one upper layer of a first polymeric component, a middle layer of a second polymeric component, and at least one lower layer of a third polymeric component, wherein the chain length of the first polymeric component and the third polymeric component is longer than the chain length of the second polymeric component. The medical device combines the features of strength, durability and bio-compatibility as well as it has resistance to tear and wear and has a good compressibility. A preferred design of the medical device is a cup produced from a care or film of LDPE surrounded by two layers of UHMWPE fabric. The medical device can be used as implants in mammals, especially as artificial cartilage within joints to secure mobility of the joint.
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Patent Name:Designing a semiconductor device layout using polishing regions
Country:[JP] Patent ID:[7,017,133]
Remarks: Designing method of an electronic device subjected to a chemical mechanical polishing process in a fabrication process thereof is conducted according to the steps of: dividing a substrate surface into first sub-regions; optimizing a coverage ratio of hard-to-polish regions in the first sub-regions to fall in a first predetermined range corresponding to the first sub-regions; dividing the substrate surface into second sub-regions different from the first sub-regions; and optimizing a coverage ratio of the hard-to-polish regions in the second sub-regions to fall in a second predetermined range corresponding to the second sub-regions, wherein patterns having a shorter edge of 5 μm or less are excluded from the optimization.
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