公开(公告)号：US11919824B2

公开(公告)日：2024-03-05

申请号：US18199423

申请日：2023-05-19

申请人： Lanzhou Institute of Chemical Physics, CAS ,  Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering ,  Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing

发明人： Zhuhui Qiao ,  Lujie Wang ,  Tongyang Li ,  Ziyue Wang ,  Yuan Yu ,  Huaguo Tang

IPC分类号： C04B41/45 ,  C04B35/587 ,  C04B35/626 ,  C04B35/645 ,  C04B35/76 ,  C04B41/00

CPC分类号： C04B41/4556 ,  C04B35/587 ,  C04B35/6261 ,  C04B35/645 ,  C04B35/76 ,  C04B41/0072 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3258 ,  C04B2235/3813 ,  C04B2235/3873 ,  C04B2235/3891 ,  C04B2235/404 ,  C04B2235/428 ,  C04B2235/5216 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/658 ,  C04B2235/85

摘要： Disclosed are a silicon nitride ceramic sintered body and preparation method thereof. The silicon nitride ceramic sintered body includes a sintered bulk and a hard surface layer having a thickness of 10-1000 μm, formed on a surface of the sintered bulk, wherein the sintered bulk comprises a first silicon nitride crystalline phase and a first grain boundary phase; the hard surface layer comprises a second silicon nitride crystalline phase and a second grain boundary phase; the first grain boundary phase comprises a metal tungsten phase being tungsten elementary substance and/or a tungsten alloy; the second grain boundary phase comprises tungsten carbide particles; tungsten element in the metal tungsten phase accounts for 80-100 wt % of total tungsten element in the first grain boundary phase; and tungsten element in the tungsten carbide particles accounts for 60-100 wt % of total tungsten element in the second grain boundary phase.

公开(公告)号：US20240043349A1

公开(公告)日：2024-02-08

申请号：US18199423

申请日：2023-05-19

申请人： Lanzhou Institute of Chemical Physics, CAS ,  Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering ,  Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing

发明人： Zhuhui QIAO ,  Lujie WANG ,  Tongyang LI ,  Ziyue WANG ,  Yuan YU ,  Huaguo TANG

IPC分类号： C04B41/45 ,  C04B35/587 ,  C04B35/76 ,  C04B35/626 ,  C04B35/645 ,  C04B41/00

CPC分类号： C04B41/4556 ,  C04B35/587 ,  C04B35/76 ,  C04B35/6261 ,  C04B35/645 ,  C04B41/0072 ,  C04B2235/3873 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/404 ,  C04B2235/428 ,  C04B2235/3891 ,  C04B2235/3206 ,  C04B2235/3227 ,  C04B2235/3258 ,  C04B2235/3813 ,  C04B2235/5216 ,  C04B2235/5445 ,  C04B2235/5436 ,  C04B2235/85 ,  C04B2235/658 ,  C04B2235/656

摘要： Disclosed are a silicon nitride ceramic sintered body and a-preparation method thereof. The silicon nitride ceramic sintered body includes a sintered bulk and a hard surface layer having a thickness of 10-1000 μm, formed on a surface of the sintered bulk, wherein the sintered bulk comprises a first silicon nitride crystalline phase and a first grain boundary phase; the hard surface layer comprises a second silicon nitride crystalline phase and a second grain boundary phase; the first grain boundary phase comprises a metal tungsten phase being tungsten elementary substance and/or a tungsten alloy; the second grain boundary phase comprises tungsten carbide particles; tungsten element in the metal tungsten phase accounts for 80-100 wt % of total tungsten element in the first grain boundary phase; and tungsten element in the tungsten carbide particles accounts for 60-100 wt % of total tungsten element in the second grain boundary phase.

公开(公告)号：US20230183417A1

公开(公告)日：2023-06-15

申请号：US17844321

申请日：2022-06-20

申请人： Lanzhou Institute of chemical Physics, chinese Academy of Sciences

发明人： Haixia Cui ,  Lei Chen ,  Yue Zhang ,  Yanping Wu ,  Hongxuan Li ,  Huidi Zhou ,  Jianmin Chen

IPC分类号： C08G59/40 ,  C08K7/28 ,  C08G59/44

CPC分类号： C08G59/4071 ,  C08K7/28 ,  C08G59/44 ,  C08G2190/00

摘要： Disclosed is an environment-friendly and flame-retardant abradable seal coating material with an ultra-low density and a use method thereof. The seal coating material includes a component A and a component B packaged separately; the component A includes 20-30 wt % of a curing agent for bisphenol A epoxy resin, 20-30 wt % of a liquid phosphorus-containing curing agent, 20-40 wt % of a hollow glass microbead, 1-5 wt % of 2,4,6-tris(dimethylaminomethyl)phenol, 5-15 wt % of dimethyl methylphosphonate and 0.5-3 wt % of a silane coupling agent; the component B includes 30-40 wt % of a bisphenol A epoxy resin, 30-40 wt % of a liquid phosphorus-containing epoxy resin, 20-30 wt % of a hollow glass microbead, 0-10 wt % of a liquid acrylonitrile-butadiene rubber and 0.5-3 wt % of a silane coupling agent. The method includes: mixing the component A and the component B to obtain a coating, and applying the obtained coating to a surface of a part for curing.

公开(公告)号：US20230000076A1

公开(公告)日：2023-01-05

申请号：US17781667

申请日：2021-02-09

申请人： Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Aiqin Wang ,  Aiping Hui ,  Fangfang Yang ,  Yuru Kang ,  Bin Mu ,  Qin Wang ,  Yongfeng Zhu

IPC分类号： A01N25/12 ,  A23K20/28 ,  A23K40/30 ,  A23K40/10 ,  A23K20/105 ,  A23K20/163 ,  A23K20/111 ,  A23K20/121 ,  A01P1/00 ,  A01N35/02 ,  A01N43/08

摘要： Disclosed is a method for preparing an attapulgite-based pH-responsive antibacterial material, including: directly spraying a natural aldehyde-based antibacterial agent onto an attapulgite powder under stirring, and constantly stirring the attapulgite powder for 20-30 min; grinding the attapulgite powder in a ball mill for 30-60 min to obtain a ground attapulgite powder; placing the ground attapulgite powder in a stirred tank, and spraying a chitosan-citric acid aqueous solution onto the ground attapulgite powder; after spraying, constantly stirring the ground attapulgite powder for 30-120 min; and finally drying the ground attapulgite powder to obtain a dried attapulgite powder, sieving the dried attapulgite powder to obtain a sieved attapulgite powder, and packaging the sieved attapulgite powder to obtain the antibacterial material.

公开(公告)号：US20220411711A1

公开(公告)日：2022-12-29

申请号：US17567014

申请日：2021-12-31

申请人： Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Xiaolong Wang ,  Xing Xu ,  Rui Guo ,  Hongling Qin ,  Feng Zhou

IPC分类号： C10M111/04 ,  C10M107/36 ,  C10M101/02 ,  C10M107/44 ,  C10M105/04 ,  C10M107/50 ,  C10M107/30

摘要： Disclosed is an oil-containing fiber-polymer self-lubricating composite material. The composite material includes a resin matrix and an oil-containing fiber dispersed in the resin matrix, wherein a mass ratio of the resin matrix to the oil-containing fiber is in the range of 100:(1-10); the resin matrix is a photocurable resin or a thermosetting resin; the oil-containing fiber comprises a natural fiber and a lubricating oil adsorbed in the natural fiber.

公开(公告)号：US20220372206A1

公开(公告)日：2022-11-24

申请号：US17586144

申请日：2022-01-27

申请人： Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Xinrui ZHANG ,  Xiaoyue WANG ,  Zenghui YANG ,  Yaoming ZHANG ,  Qihua WANG ,  Tingmei WANG

IPC分类号： C08G18/38 ,  C08G18/10 ,  C07C323/37 ,  C07C319/22

摘要： The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4′-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.

公开(公告)号：US09067188B2

公开(公告)日：2015-06-30

申请号：US13723115

申请日：2012-12-20

申请人： Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

发明人： Jing Chen ,  Heyuan Song ,  Chungu Xia ,  Meirong Kang ,  Ronghua Jin

IPC分类号： C07C41/50 ,  C07C41/56 ,  C07C41/60 ,  B01J19/00 ,  B01J19/24 ,  B01J14/00 ,  C07C41/58

CPC分类号： B01J14/00 ,  B01J19/00 ,  B01J19/2465 ,  C07C41/50 ,  C07C41/56 ,  C07C41/58 ,  C07C41/60 ,  Y02P20/584 ,  C07C43/303

摘要： A reaction system and method for producing polyoxymethylene dialkyl ethers (RO(CH2O)nR, n=1-8) by continuous acetalation of formaldehyde and aliphatic alcohol in the presence of an acid ionic liquid catalyst. The reaction system includes an acetalation reaction unit, a product separation unit, and a catalyst regeneration unit. The recyclable material and catalyst are separated by combining extraction and rectification, and a recovery rate of more than 99% for the catalyst is achieved. Water, as the byproduct, is separated from the reaction system by destroying the azeotrope of water, alcohol, aldehyde, and RO(CH2O)nR, so that the product separation and catalyst regeneration are facilitated and the catalytic cycle is achieved.

摘要翻译： 在酸性离子液体催化剂存在下，通过甲醛和脂族醇的连续缩醛，生产聚甲醛二烷基醚（RO（CH 2 O）n R，n = 1-8）的反应体系和方法。 反应体系包括缩醛化反应单元，产物分离单元和催化剂再生单元。 通过组合提取和精馏分离可回收材料和催化剂，实现催化剂回收率大于99％。 作为副产物的水通过破坏水，醇，醛和RO（CH 2 O）n R的共沸物与反应体系分离，从而促进产物分离和催化剂再生并实现催化循环。

公开(公告)号：US20150094497A1

公开(公告)日：2015-04-02

申请号：US14218552

申请日：2014-03-18

申请人： Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences ,  Suzhou OST Advanced Materials Co., Ltd.

发明人： Jing Chen ,  Heyuan Song ,  Chungu Xia ,  Meirong Kang

IPC分类号： C07C41/01 ,  B01D3/00

CPC分类号： B01J14/00 ,  B01D3/009 ,  B01J2219/00006 ,  C07C41/01 ,  C07C41/56 ,  C07C41/58 ,  C08G2/06 ,  C08G2/08 ,  C08G2/34 ,  Y02P20/584 ,  C07C43/30

摘要： The invention relates to a reaction system and process for continuously preparing polymethoxy dimethyl ether (DMM3-8) by a continuous acetalization reaction between an aqueous formaldehyde solution or paraformaldehyde and methanol in the presence of a functionalized acidic ionic liquid as a catalyst. The reaction system of the invention preferably comprises a formaldehyde-concentrating unit, a vacuum-drying unit, an acetalization reaction unit, a product-separating unit and a catalyst-regenerating unit. The process of the invention uses aqueous formaldehyde solution as an initial raw material, which is concentrated in the formaldehyde-concentrating unit to a concentrated formaldehyde of 50˜80 wt. %, and vacuum-dried to paraformaldehyde, or uses paraformaldehyde as raw material directly, then obtains DMM3-8 by an acetalization reaction. The raw materials of the reaction used in the invention are cheap and available easily, and the utilization rate of formaldehyde is high; an efficient separation between the catalyst and product, as well as the reuse of the catalyst and raw materials, are realized by a separation mode of combining extraction and rectification together.

摘要翻译： 本发明涉及在官能化酸性离子液体作为催化剂存在下，通过甲醛水溶液或多聚甲醛与甲醇之间的连续缩醛化反应连续制备聚甲氧基二甲醚（DMM3-8）的反应体系和方法。 本发明的反应体系优选包含甲醛浓缩单元，真空干燥单元，缩醛化反应单元，产物分离单元和催化剂再生单元。 本发明的方法使用甲醛水溶液作为初始原料，其将浓缩在甲醛浓缩装置中的浓缩甲醛为50〜80wt。 ％，真空干燥至多聚甲醛，或直接用多聚甲醛为原料，通过缩醛化反应得到DMM3-8。 本发明中使用的反应原料便宜且易于使用，甲醛的利用率高; 催化剂和产物之间的有效分离以及催化剂和原料的再利用通过将萃取和精馏结合在一起的分离模式来实现。

公开(公告)号：US08816131B2

公开(公告)日：2014-08-26

申请号：US13154359

申请日：2011-06-06

申请人： Jing Chen ,  Heyuan Song ,  Chungu Xia ,  Zhen Li

发明人： Jing Chen ,  Heyuan Song ,  Chungu Xia ,  Zhen Li

IPC分类号： C07C41/58 ,  C07C41/50 ,  C07C41/56

CPC分类号： C07C41/50 ,  B01J31/0279 ,  B01J31/0281 ,  B01J31/0284 ,  B01J31/0288 ,  B01J31/40 ,  B01J2231/40 ,  C07C41/14 ,  C07C41/56 ,  Y02P20/126 ,  Y02P20/584 ,  C07C43/30 ,  C07C43/10

摘要： It is related to a method for preparing polyoxymethylene dimethyl ethers by a continuous acetalation reaction of trioxymethylene and methanol or methylal catalyzed by an ionic liquid. The processing apparatus used in the method includes a reaction zone, a separation zone, a catalyst regeneration zone and a product dehydration zone. A manner of circulating tubular reaction is used, resulting in a high external heat exchange efficiency, a simple structure of design and a low investment. A film evaporator is used, realizing a rapid separation and recycling of the light component, with a high separation efficiency. The separation of the catalyst solution from the crude product is simple, thereby realizing the regeneration and recycling of the catalyst.

摘要翻译： 它涉及一种通过三氯甲烷和甲醇或甲缩醛通过离子液体催化的连续缩醛反应制备聚甲醛二甲醚的方法。 该方法中使用的处理装置包括反应区，分离区，催化剂再生区和产物脱水区。 使用循环管状反应的方式，导致外部热交换效率高，设计结构简单，投资少。 使用薄膜蒸发器，实现轻组分的快速分离和再循环，分离效率高。 催化剂溶液与粗产物的分离是简单的，从而实现催化剂的再生和再循环。

公开(公告)号：US08809574B2

公开(公告)日：2014-08-19

申请号：US12637550

申请日：2009-12-14

申请人： Youquan Deng ,  Xiaoguang Guo ,  Feng Shi ,  Qinghua Zhang ,  Xiangyuan Ma ,  Liujin Lu ,  Jian Li ,  Xiong Tian ,  Yubo Ma ,  Jianpeng Shang ,  Xinjiang Cui ,  Liguo L Wang ,  Hongzhe Zhang

发明人： Youquan Deng ,  Xiaoguang Guo ,  Feng Shi ,  Qinghua Zhang ,  Xiangyuan Ma ,  Liujin Lu ,  Jian Li ,  Xiong Tian ,  Yubo Ma ,  Jianpeng Shang ,  Xinjiang Cui ,  Liguo L Wang ,  Hongzhe Zhang

IPC分类号： C07C263/00 ,  B01J23/843 ,  B01J31/02 ,  B01J23/18 ,  B01J23/10 ,  B01J23/06 ,  B01J37/03 ,  C07C263/04 ,  B01J23/80 ,  B01J23/75 ,  B01J23/02 ,  B01J23/28 ,  B01J23/755 ,  B01J23/745 ,  B01J23/72 ,  B01J23/30

CPC分类号： C07C263/04 ,  B01J23/02 ,  B01J23/06 ,  B01J23/10 ,  B01J23/18 ,  B01J23/28 ,  B01J23/30 ,  B01J23/72 ,  B01J23/745 ,  B01J23/75 ,  B01J23/755 ,  B01J23/80 ,  B01J23/8437 ,  B01J31/0249 ,  B01J31/0278 ,  B01J31/0284 ,  B01J31/0288 ,  B01J31/0292 ,  B01J37/031 ,  C07C265/14

摘要： The present invention discloses a method for preparing isocyanates by liquid-phase catalytic thermal cracking. In this method, in a reaction-rectification thermal cracking reactor, using a catalyst composition comprising a superfine powder metal oxide catalyst and an ionic liquid, an alkyl or aryl dialkylurethane, or multialkylurethane being a reactant is liquid-phase thermal cracked for a reaction time of 0.5-3 h under a reaction temperature of 160-220° C. and an absolute pressure of 1000-8000 Pa so as to prepare the corresponding isocyanate. The invention has the characteristics of low thermal cracking temperature, high yield of target products, relatively simple reaction apparatus and good universality for substrates (the yields of HDI, MDI, TDI, HMDI, NDI and IPDI or the like are all>85%) and the like.

摘要翻译： 本发明公开了一种通过液相催化热裂解制备异氰酸酯的方法。 在该方法中，在反应精制热裂解反应器中，使用包含超细粉末金属氧化物催化剂和离子液体的催化剂组合物，作为反应物的烷基或芳基二烷基氨基甲酸酯或多烷基氨基甲酸酯是液相热裂化反应时间 在反应温度为160-220℃，绝对压力为1000-8000Pa下为0.5-3小时，以制备相应的异氰酸酯。 本发明具有热裂解温度低，靶产品收率高，反应装置相对简单，基板通用性好（HDI，MDI，TDI，HMDI，NDI，IPDI等的收率均为> 85％）的特点， 等等。