Patents Examined by Yun Qian
  • Patent number: 11325994
    Abstract: Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high activity and a long term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 10, 2022
    Inventors: Jun Wang, Mingzhi Gao, Haitao Liu, Jing Ma, Jixing Ma, Xiaoxia Cai, Jianhua Chen, Jianjun Hu, Changxiu Li, Zhihui Zhang, Ruilin Duan, Changyou Ma
  • Patent number: 11319452
    Abstract: This disclosure relates to tertiary amine solutions of metal precursors used for chemical vapor deposition or atomic layer deposition. The tertiary amine solutions have many advantages. They dissolve high concentrations of non-polar precursors without reacting with them. They do not supply impurities such as oxygen or halogens to the material being produced, nor do they etch or corrode them. Vaporization rates can be chosen so that the solute and solvent may be evaporated simultaneously, have high flash points, and low flammability. Small droplets may be formed easily which facilitate rapid evaporation without decomposition of he dissolved metal precursor to supply vapors for chemical vapor deposition or atomic layer deposition processes.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 3, 2022
    Assignee: President and Fellows of Harvard College
    Inventor: Roy Gerald Gordon
  • Patent number: 11312670
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 26, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Patent number: 11305268
    Abstract: The present application discloses complexes useful as catalysts for organic chemical synthesis including hydrogenation and dehydrogenation of unsaturated compounds or dehydrogenation of substrates. The range of hydrogenation substrate compounds includes esters, lactones, oils and fats, resulting in alcohols, diols, and triols as reaction products. The catalysts of current application can be used to catalyze a hydrogenation reaction under solvent free conditions. The present catalysts also allow the hydrogenation to proceed without added base, and it can be used in place of the conventional reduction methods employing hydrides of the main-group elements. Furthermore, the catalysts of the present application can catalyze a dehydrogenation reaction under homogenous and/or acceptorless conditions. As such, the catalysts provided herein can be useful in substantially reducing cost and improving the environmental profile of manufacturing processes for variety of chemicals.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 19, 2022
    Inventors: Dmitri Goussev, Denis Spasyuk
  • Patent number: 11298693
    Abstract: The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C10+.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 12, 2022
    Inventors: Buwei Yu, Tao Jiang, Sihan Wang, Hongling Chu, Yan Jiang, Hongliang Huo, Xianming Xu, Libo Wang, Huaiqi Shao, Yali Wang, Yuanyuan Cao, Tong Liu, Kecun Ma, Fuling Huang, Xiuhui Wang, Enhao Sun, Yulong Wang
  • Patent number: 11298694
    Abstract: Zwitterion ligand metal complexes and methods of aerobic oxidation using a zwitterion ligand metal complex are provided. The zwitterion ligand metal complexes can include a transition metal salt and a zwitterion ligand, which can comprise a non-conjugated amide anion-phosphonium cation, an amide anion-ammonium cation, or an iminium cation. The methods of aerobic oxidation can include combining the zwitterion ligand metal complex with an oxidizable compound and molecular oxygen to allow the isolation of an oxidized compound from the oxidizable compound.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: April 12, 2022
    Assignee: The Chinese University of Hong Kong
    Inventors: Rong-Bin Hu, Ying-Pong Lam, Wing-Hin Ng, Ying-Yeung Yeung, Zhihai Ke
  • Patent number: 11291982
    Abstract: The invention relates to the field of oligomerization of olefins to produce linear ?-olefins, in particular hexene-1, with the use of a catalyst system. The catalyst system comprises a chromium source compound, a nitrogen-containing ligand, alkylaluminum, and a zinc compound, wherein catalyst system is activated during its preparation by 1) heating some and SHF irradiation (microwave irradiation) of alkylaluminum or a mixture of the alkylaluminum and the zinc compound, or by 2) heating alkylaluminum or a mixture of the alkylaluminum and the zinc compound, followed by holding (aging) the prepared catalyst system for a certain period of time.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 5, 2022
    Inventors: Denis Alekseevich Lenev, Rafael Acevedo Forero
  • Patent number: 11291981
    Abstract: A catalytic system for use in olefinic polymerization, includes titanium, magnesium, a halogen, organoaluminium, and a boron-based electron donor.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 5, 2022
    Assignee: Braskem America, Inc.
    Inventors: Jonas Alves Fernandes, Binh Thanh Nguyen
  • Patent number: 11278876
    Abstract: The invention relates to monocarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The invention relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: March 22, 2022
    Assignees: Universtia Degli Studi Di Udine, Innovation Factory S.R.L.
    Inventors: Walter Baratta, Salvatore Baldino, Steven Giboulot
  • Patent number: 11273432
    Abstract: The synthesis and structure of beta-diketiminate manganese compounds are described, as well as their use as catalysts for the hydrosilylation and hydroboration of unsaturated organic compounds and main group element-main group element bond formation via dehydrogenative coupling.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: March 15, 2022
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Ryan J. Trovitch, Thu Thao Nguyen, Tufan K. Mukhopadhyay, Brian M. Glazier
  • Patent number: 11274187
    Abstract: To provide a cellulose ester composition having good thermoplasticity. The cellulose ester composition including: (A) a cellulose ester and (B) a plasticizer, wherein the plasticizer of the component (B) includes at least one kind selected from adipic acid esters respectively represented by the following formulae (I), (II) and (III).
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 15, 2022
    Inventors: Shinichiro Imanishi, Yasuo Okumura, Kazunobu Yanai
  • Patent number: 11260379
    Abstract: Provided are catalysts, methods of making catalysts, methods of using catalysts, and copolymers made utilizing the catalysts. The catalyst has a metal salen complex group, a bridging group, and one or more co-catalyst groups. The metal salen complex group is attached to the bridging group and the bridging group is attached to the co-catalyst group. The copolymers made utilizing the catalysts are polyesters or polycarbonates.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: March 1, 2022
    Inventors: Geoffrey W. Coates, Brooks Abel, Claire Lidston
  • Patent number: 11260380
    Abstract: The invention describes phospho-amino pincer-type ligands, metal complexes thereof, and catalytic methods comprising such metal complexes for conversion of carbon dioxide to methanol, conversion of aldehydes into alcohols, conversion of aldehydes in the presence of a trifluoromethylation agent into trifluorinated secondary alcohols, cycloaddition of carbon dioxide to an epoxide to provide cyclic carbonates or preparation of an amide from the combination of an alcohol and an amine.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: March 1, 2022
    Inventors: Kuo-Wei Huang, Qianyi Zhao
  • Patent number: 11247200
    Abstract: The present invention provides a carbon nitride-based photocatalyst and a preparation method thereof. The photocatalyst is prepared by reaction of melem with 3,3?,4,4?-benzophenonetetracarboxylic dianhydride. The photocatalyst according to an embodiment of the present invention achieves energy level matching in structure between the melem structure and the 3,3?,4,4?-benzophenonetetracarboxylic dianhydride, reduces a singlet-triplet energy gap (?EST), promotes an intersystem crossing process, thereby enhancing the singlet oxygen production and improving the selective photocatalytic oxidation ability.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: February 15, 2022
    Inventors: Wenting Wu, Congcong Han, Mingbo Wu, Zhongtao Li, Qinggang Zhang
  • Patent number: 11241676
    Abstract: Disclosed is a composite catalyst, comprising carbon in a continuous phase and Raney alloy particles in a dispersed phase. The Raney alloy particles are dispersed evenly or unevenly in the carbon in a continuous phase, and the carbon in a continuous phase is obtained by carbonizing at least one carbonizable organic substance. The catalyst has good particle strength, high catalytic activity, and good selectivity.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: February 8, 2022
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Wei Dai, Shuliang Lu, Haibin Jiang, Guoqing Wang, Xiaohong Zhang, Hui Peng, Jinliang Qiao
  • Patent number: 11241680
    Abstract: The invention is directed to ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type. The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost-effective manner. The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: February 8, 2022
    Inventors: Herbert Plenio, Pavlo Kos, Roman Savka
  • Patent number: 11242362
    Abstract: Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeated P?N, and B is at least one of unsubstituted or substituted C1-6 alkylamino, unsubstituted or substituted C1-6 cycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus in P?N, where R is unsubstituted or substituted C1-6 alkyl, unsubstituted or substituted C1-6 cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms C1-6 heterocycloalkyl together with N attached thereto.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 8, 2022
    Inventors: Zhibo Li, Na Zhao, Chuanli Ren, Xiaohui Fu, Shaofeng Liu
  • Patent number: 11235315
    Abstract: The present invention relates to an oligomerization catalyst including a transition metal or transition metal precursor, a halogen-substituted organic ligand, and a heteroatom ligand, and to a method for selectively preparing 1-hexene or 1-octene from ethylene using the catalyst.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 1, 2022
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Sang Ick Lee, Eun Jung Baek, Sun Young Kim, Hyo Seung Park, Min Seon Jung
  • Patent number: 11235316
    Abstract: The present invention is directed to reaction mixtures comprising a water-surfactant mixture, wherein the catalyst comprises a compound with solubilizing groups. This technology improves the solubility of the reaction components in the water-surfactant mixture and thereby, greatly increases the productivity and selectivity of the chemical reaction.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: February 1, 2022
    Assignee: Novartis AG
    Inventors: Fabrice Gallou, Pengfei Guo, Jianguang Zhou, Michael Parmentier
  • Patent number: 11236118
    Abstract: Palladium catalysts, methods of synthesizing palladium-carbene catalysts, and methods of producing chromones and aurones using palladium-N-heterocyclic carbene (NHC) catalysts are provided. In some implementations, the palladium catalysts include a bridged palladium catalyst with distorted square planar geometry around the center palladium atom. The catalysts can be used in cyclocarbonylative Sonogashira cross-coupling reactions to produce chromones and aurones at a high yield. The selectivity of the catalysts can be adjusted by adjusting reaction conditions.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: February 1, 2022
    Assignee: King Fahd University of Petroleum & Minerals
    Inventors: Bassam El Ali, Waseem Mansour, Mohammed Fettouhi