Patents by Inventor Shuyan Yu
Shuyan Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9399735Abstract: A mannich-base inhibitor for decalcification, a preparation method and application thereof are provided. The inhibitor comprises 10-80% mannich-base component calculated in the total weight percent of the inhibitor, while the rest is at least one compound selected from imidazoline inhibitor with molecular weight between 110 and 750, and alkynyloxy amine inhibitor. The mannich-base inhibitor component is prepared through mannich reaction with 1 mol organic polyamine containing three or more primary amine bases and/or secondary amine bases, 3-7 mol ketones, and 3-7 mol aldehydes. The inhibitor which can be effectively compounded and cooperated with oil demulsifying agent and oil decalcifying agent, have the advantages of stable property, strong absorbability, high film strength and film density with its inhibition rate exceeding 90%.Type: GrantFiled: April 27, 2012Date of Patent: July 26, 2016Assignee: PETROCHINA COMPANY LIMITEDInventors: Ling Ma, Lei Li, Xinping Zhen, Chunge Niu, Zhongting Ma, Xiangjun Kong, Shuyan Yu
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Publication number: 20130256602Abstract: A mannich-base inhibitor for decalcification, a preparation method and application thereof are provided. The inhibitor comprises 10-80% mannich-base component calculated in the total weight percent of the inhibitor, while the rest is at least one compound selected from imidazoline inhibitor with molecular weight between 110 and 750, and alkynyloxy amine inhibitor. The mannich-base inhibitor component is prepared through mannich reaction with 1 mol organic polyamine containing three or more primary amine bases and/or secondary amine bases, 3-7 mol ketones, and 3-7 mol aldehydes. The inhibitor which can be effectively compounded and cooperated with oil demulsifying agent and oil decalcifying agent, have the advantages of stable property, strong absorbability, high film strength and film density with its inhibition rate exceeding 90%.Type: ApplicationFiled: April 27, 2012Publication date: October 3, 2013Applicant: PETROCHINA COMPANY LIMITEDInventors: Ling Ma, Lei Li, Xinping Zhen, Chunge Niu, Zhongting Ma, Xiangjun Kong, Shuyan Yu
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Patent number: 7455763Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalizedType: GrantFiled: June 2, 2004Date of Patent: November 25, 2008Assignee: Karamay Jinshan Petrochemical Limited CompanyInventors: Lailong Luo, Chunge Niu, Shuyan Yu, Zhongting Ma, Xiangsheng Meng, Bo Ouyang, Yun Han
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Publication number: 20080237091Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalizedType: ApplicationFiled: June 2, 2004Publication date: October 2, 2008Applicant: KARAMAY JINSHAN PETROCHEMICAL LIMITED COMPANYInventors: Lailong Luo, Chunge Niu, Shuyan Yu, Zhongting Ma, Xiangsheng Meng, Bo Ouyang, Yun Han
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Publication number: 20070062849Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalizedType: ApplicationFiled: June 2, 2004Publication date: March 22, 2007Applicant: KARAMAY JINSHAN PETROCHEMICAL LIMITED COMPANYInventors: Lailong Luo, Chunge Niu, Shuyan Yu, Zhongting Ma, Xiangsheng Meng, Bo Ouyang, Yun Han
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Patent number: 6657031Abstract: This invention relates to thermosetting resin compositions useful for mounting semiconductor devices onto a circuit board, such as chip size or chip scale packages (“CSPs”), ball grid arrays (“BGAs”), land grid arrays (“LGAs”), and the like, each of which having a semiconductor chip, such as large scale integration (“LSI”), on a carrier substrate. The compositions of this invention are reworkable when subjected to appropriate conditions.Type: GrantFiled: July 31, 2001Date of Patent: December 2, 2003Assignee: Loctite CorporationInventors: Lawrence N. Crane, Christopher K. Ober, Young Cheol Bae, Shuyan Yu, Jong-Wook Park
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Publication number: 20030036066Abstract: A novel approach for combining the ease of cleavage of carboxylic acid linker arms with the single phosphoramidite coupling chemistry of the universal supports useful in oligonucleotide synthesis. There is disclosed a new class of phosphoramidite reagents, linker phosphoramidites, which contain a bifunctional linker arm with a protected nucleoside linked through a 3′-ester bond on one end and a reactive phosphoramidite group or other phosphate precursor group on the other end—see FIGS. 2 and 3. The phosphoramidite group on the linker phosphoramidite may be activated under the same conditions and has similar reactivity as conventional nucleoside-3′-phosphoramidite reagents lacking the intermediate linker arm. The 3′-ester linkage contained within the linker phosphoramidite has similar properties to the linkages on prederivatized supports.Type: ApplicationFiled: September 10, 2001Publication date: February 20, 2003Applicant: University Technologies International Inc.Inventors: Richard T. Pon, Shuyan Yu