公开(公告)号：US20240368370A1

公开(公告)日：2024-11-07

申请号：US18030506

申请日：2021-12-27

Applicant: NATIONAL INDUSTRIAL INNOVATION CENTER OF POLYMER MATERIALS CO., LTD

Inventor： Bo WU ,  Xiaoqiong XIE ,  Jianjun LI ,  Pingxu CHEN ,  Hongtao NING ,  Nanbiao YE ,  Chenghuan PANG

IPC: C08J11/18 ,  B01J20/02 ,  B01J20/04 ,  B01J20/20 ,  B01J21/06 ,  B01J31/12 ,  C08J11/16

Abstract: A method with typical green and low-carbon characteristics for preparing recycled polyester by closed-loop recycling of waste polyester is disclosed. The method includes subjecting the waste polyester to depolymerization by using a specific depolymerization catalyst; removing a polyol solvent from a depolymerization product, and removing a by-product by purification to obtain a depolymerization monomer; mixing the depolymerization monomer with a binary acid, a polyol, a polymerization catalyst, and a chain extender to carry out an esterification reaction; and then adding a stabilizer and a catalyst for condensation polymerization to obtain the recycled polyester. The method of the present invention has low depolymerization temperature, high efficiency, low use amount of the polyol solvent, and extremely low content of a by-product. Meanwhile, the depolymerization catalyst can be directly used for the co-esterification of the recycled polyester without separation, and adverse effects on properties of the prepared recycled polyester cannot be caused.

公开(公告)号：US12115524B1

公开(公告)日：2024-10-15

申请号：US18665066

申请日：2024-05-15

Applicant: IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY

Inventor： Tarek Ahmed Yousef ,  Hanan A. Althikrallah ,  Saad Shaaban ,  Mohsen Ahmed

IPC: B01J37/04 ,  B01J31/12 ,  B01J35/39 ,  B01J37/08 ,  B01J37/24 ,  C07F11/00

CPC classification number: B01J31/122 ,  B01J37/04 ,  B01J37/084 ,  B01J37/24 ,  C07F11/00 ,  B01J35/39

Abstract: A method of producing an organoselenium-based nanocomposite includes acid-treating a mixture containing multi-walled carbon nanotubes (MWCNT) and palm waste with phosphoric acid to form an acid-treated mixture; carbonizing the acid-treated mixture to form a MWCNT/biochar; mixing the MWCNT-biochar with TiO2 nanoparticles to form a TiO2-MWCNT/biochar; chlorinating acyl groups present on the TiO2-MWCNT/biochar to form a chlorinated TiO2-MWCNT/biochar; reacting the chlorinated TiO2-MWCNT/biochar with an organoselenium compound to form a Se—TiO2-MWCNT/biochar.

公开(公告)号：US20240269639A1

公开(公告)日：2024-08-15

申请号：US18162361

申请日：2023-01-31

Applicant: Lenovo (Singapore) Pte. Ltd.

Inventor： Marilia Santos Menossi Mortari ,  Bruno Marinaro Verona ,  Sergio Matias Pereira Junior ,  Caio Perez Gomes ,  Ariane Simoes Tunussi

IPC: B01J19/00 ,  B01J31/12 ,  B01J31/14 ,  B01J35/04 ,  B01J37/02 ,  C07H1/00 ,  C07H21/04

CPC classification number: B01J19/0046 ,  B01J31/127 ,  B01J31/143 ,  B01J35/56 ,  B01J37/0217 ,  B01J37/0219 ,  C07H1/00 ,  C07H21/04 ,  B01J2219/00612 ,  B01J2219/00675 ,  B01J2219/00695 ,  B01J2219/00722

Abstract: Various aspects disclosed relate to a DNA synthesis substrate. the substrate includes a low temperature co-fired ceramic support. The substrate further includes a linker molecule functionalized to the low temperature co-fired ceramic support.

公开(公告)号：US12037254B2

公开(公告)日：2024-07-16

申请号：US18101923

申请日：2023-01-26

Applicant: Saudi Arabian Oil Company ,  King Abdullah University of Science and Technology

Inventor： Robert Peter Hodgkins ,  Omer Refa Koseoglu ,  Jean-Marie Maurice Basset ,  Kuo-Wei Huang ,  Anissa Bendjeriou Sedjerari ,  Manoj K. Gangwar ,  Sathiyamoorthy Murugesan

IPC: B01J29/03 ,  B01J29/40 ,  B01J31/12 ,  B01J35/40 ,  B01J35/64 ,  B01J37/02 ,  B01J37/16 ,  C01B39/02 ,  C01B39/40

CPC classification number: C01B39/40 ,  B01J29/405 ,  B01J35/40 ,  B01J35/647 ,  B01J35/651 ,  B01J37/0203 ,  B01J37/16 ,  C01B39/026 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2002/86 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/16

Abstract: Disclosed herein are modified zeolites and methods for making modified zeolites. In one or more embodiments disclosed herein, a modified zeolite may include a microporous framework comprising a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may further include organometallic moieties each bonded to bridging oxygen atoms. The organometallic moieties may include a titanium atom. The titanium atom may be bonded to a bridging oxygen atom, and the bridging oxygen atom may bridge the titanium atom of the organometallic moiety and a silicon atom of the microporous framework.

公开(公告)号：US12017977B2

公开(公告)日：2024-06-25

申请号：US18075488

申请日：2022-12-06

Applicant: NISSHINBO CHEMICAL INC.

Inventor： Nobuyuki Matsumoto ,  Kenichi Yanagisawa

IPC: C07C269/02 ,  B01J31/04 ,  B01J31/08 ,  B01J31/12 ,  C07C267/00 ,  C08G18/02 ,  C08G18/76 ,  C08G18/79 ,  C08G18/81 ,  C08K5/29 ,  C08L75/06

CPC classification number: C07C267/00 ,  B01J31/04 ,  B01J31/08 ,  B01J31/12 ,  C07C269/02 ,  C08G18/025 ,  C08G18/7628 ,  C08G18/797 ,  C08G18/8108 ,  C08K5/29 ,  C08L75/06

Abstract: A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an organic alkali metal compound (B) having Lewis basicity.

公开(公告)号：US11964870B2

公开(公告)日：2024-04-23

申请号：US17059945

申请日：2019-07-22

Applicant: LG CHEM, LTD.

Inventor： Kyung Yeon Kang ,  Hyun Joon Kang ,  Ki Soo Lee

IPC: C01B32/162 ,  B01J21/02 ,  B01J23/22 ,  B01J27/25 ,  B01J31/12 ,  B01J37/08

CPC classification number: C01B32/162 ,  B01J21/02 ,  B01J23/22 ,  B01J27/25 ,  B01J31/122 ,  B01J37/08 ,  C01P2004/13 ,  C01P2004/64 ,  C01P2006/12

Abstract: The present invention relates to a method for preparing carbon nanotubes, the method including: preparing a support including AlO(OH) by primary heat treatment of Al(OH)3; preparing an active carrier by supporting a mixture including a main catalyst precursor and a cocatalyst precursor on the support; drying the active carrier through multi-stage drying including vacuum drying; preparing a supported catalyst by secondary heat treatment of the dried active support; and preparing carbon nanotubes in the presence of the supported catalyst, and the carbon nanotubes prepared by the method as described above can remarkably improve conductivity.

公开(公告)号：US20240124311A1

公开(公告)日：2024-04-18

申请号：US18379974

申请日：2023-10-13

Applicant: Nanocomp Technologies, Inc.

Inventor： David Gailus ,  Mark Schauer

IPC: C01B32/162 ,  B01J23/745 ,  B01J31/12 ,  B01J38/02 ,  B01J38/16 ,  B01J38/48 ,  B01J38/60 ,  D01F9/133

CPC classification number: C01B32/162 ,  B01J23/745 ,  B01J31/122 ,  B01J38/02 ,  B01J38/16 ,  B01J38/48 ,  B01J38/60 ,  D01F9/133 ,  B82Y40/00 ,  C01P2004/13 ,  C01P2004/60

Abstract: A system and method of producing carbon nanotubes from flare gas and other gaseous carbon-containing sources.

公开(公告)号：US11938468B2

公开(公告)日：2024-03-26

申请号：US17206080

申请日：2021-03-18

Applicant: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED

Inventor： Taradon Piromchart ,  Valerio D'Elia

IPC: B01J31/02 ,  B01J21/08 ,  B01J23/18 ,  B01J31/12 ,  B01J35/12 ,  B01J37/04 ,  B01J37/08 ,  C07F7/18 ,  C07D317/36

CPC classification number: B01J31/0268 ,  B01J21/08 ,  B01J23/18 ,  B01J31/0239 ,  B01J31/0279 ,  B01J31/0298 ,  B01J31/121 ,  B01J35/12 ,  B01J37/04 ,  B01J37/08 ,  C07F7/1804 ,  C07D317/36

Abstract: The present invention provides a catalyst system for producing cyclic carbonates comprising:



a pre-catalyst, which is BiCl3 having amounts in the range from 5 to 10% by weight of silica support;
a compound having formula (I)










wherein:

Y is selected from bromide (Br−) or iodide (I−);
R1, R2, and R3 are methyl group or R1, R2, and R3 are taken together to form a heteroaryl ring having formula (II)










and



a silica (SiO2) support.

公开(公告)号：US11911750B1

公开(公告)日：2024-02-27

申请号：US18062745

申请日：2022-12-07

Applicant: Saudi Arabian Oil Company

Inventor： Omer Refa Koseoglu ,  Ashok K.. Punetha ,  Hendrik Muller

IPC: B01J31/12 ,  B01J31/22 ,  B01J35/12 ,  B01J37/04 ,  B01J37/08 ,  C10G47/06

CPC classification number: B01J31/226 ,  B01J31/2213 ,  B01J35/12 ,  B01J37/04 ,  B01J37/08 ,  C10G47/06 ,  B01J2231/641 ,  B01J2531/64 ,  C10G2300/1007 ,  C10G2300/301 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/70

Abstract: A slurry-phase catalyst composition may include a disulfide oil and a first metal complex. The first metal complex may include at least one transition metal selected from the group consisting of molybdenum, cobalt, nickel, tungsten, iron, and combinations of these. The first metal complex may also include a plurality of ligands bonded to the at least one transition metal. The plurality of ligands may include at least one first ligand selected from the group consisting of dim ethyl sulfide, dimethyldisulfide, diethyl sulfide, diethyldisulfide, methyl ethyl sulfide, methylethyldisulfide, and combinations thereof, and the transition metal may be bonded to a sulfur atom of the at least one first ligand.

公开(公告)号：US11865528B2

公开(公告)日：2024-01-09

申请号：US18353149

申请日：2023-07-17

Applicant: Chevron Phillips Chemical Company LP

Inventor： Masud M. Monwar ,  Carlos A. Cruz ,  Jared L. Barr ,  Max P. McDaniel

IPC: C08F110/02 ,  C08F210/16 ,  C08F4/69 ,  B01J31/12 ,  C08F10/02 ,  B01J8/08 ,  B01J8/18 ,  B01J19/12 ,  B01J21/08 ,  C08F4/22 ,  B01J23/26 ,  B01J37/16 ,  C08F4/78 ,  B01J37/34 ,  B01J31/34

CPC classification number: B01J31/12 ,  B01J8/085 ,  B01J8/18 ,  B01J19/123 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  B01J21/08 ,  B01J23/26 ,  B01J31/34 ,  B01J37/16 ,  B01J37/34 ,  B01J37/344 ,  B01J37/345 ,  B01J2219/089 ,  B01J2219/0869 ,  B01J2219/1203 ,  B01J2531/62 ,  C08F4/22 ,  C08F4/69 ,  C08F4/78

Abstract: Supported chromium catalysts with an average valence less than +6 and having a hydrocarbon-containing or halogenated hydrocarbon-containing ligand attached to at least one bonding site on the chromium are disclosed, as well as ethylene-based polymers with terminal alkane, aromatic, or halogenated hydrocarbon chain ends. Another ethylene polymer characterized by at least 2 wt. % of the polymer having a molecular weight greater than 1,000,000 g/mol and at least 1.5 wt. % of the polymer having a molecular weight less than 1000 g/mol is provided, as well as an ethylene homopolymer with at least 3.5 methyl short chain branches and less than 0.6 butyl short chain branches per 1000 total carbon atoms.