公开(公告)号：US20240309142A1

公开(公告)日：2024-09-19

申请号：US18606280

申请日：2024-03-15

申请人： ECOLAB USA INC.

发明人： Victor Fuk-Pong Man ,  Xiaojin Harry Li ,  Yiqing Chen ,  Gang Pu ,  Clinton Hunt, JR.

IPC分类号： C08F293/00

CPC分类号： C08F293/00

摘要： This disclosure relates to capped block copolymers, preferably reverse block copolymers capped with a hydrophobic group. Preferred hydrophobic groups include benzyl groups and silyl groups. In a preferred embodiment, the reverse block copolymer has at least two arms, wherein each arm is capped with a hydrophobic group. The disclosure also provides for the synthesis of the capped block copolymers as well as methods of using the capped block copolymers for defoaming and antifoaming applications.

公开(公告)号：US12024597B2

公开(公告)日：2024-07-02

申请号：US18114570

申请日：2023-02-27

申请人： Clearlab SG Pte Ltd.

发明人： Jong Gu Park ,  Yeong Shenq Chow ,  John Christopher Phelan

IPC分类号： C08G77/46 ,  A61L26/00 ,  C08F293/00 ,  C08L53/00 ,  G02B1/04

CPC分类号： C08G77/46 ,  A61L26/0019 ,  A61L26/0066 ,  A61L26/008 ,  C08F293/00 ,  C08L53/005 ,  G02B1/043 ,  A61L2300/404 ,  C08G2210/00 ,  C08L2201/10 ,  C08L2203/02

摘要： Described herein are wound dressing comprising a silicone hydrogel composition and optionally an antimicrobial agent, and methods of making and use thereof. The silicone hydrogel compositions comprise an actinically-crosslinkable polysiloxane-polyglycerol block copolymer crosslinked with a crosslinker. The actinically-crosslinkable polysiloxane-polyglycerol block copolymer being derived from: a polysiloxane prepolymer comprising a polyglycerol side chain, the polyglycerol side chain comprising an ethylenically unsaturated group covalently linked thereto, wherein the ethylenically unsaturated group is actinically curable.

公开(公告)号：US12018111B2

公开(公告)日：2024-06-25

申请号：US17694883

申请日：2022-03-15

申请人： POSTECH Research and Business Development Foundation

发明人： Jin Kon Kim ,  Seonghyeon Ahn

IPC分类号： C08F293/00 ,  A61K9/107 ,  B01J13/08 ,  B01J31/06 ,  B01J35/23 ,  B01J37/00 ,  B01J37/04 ,  C08J5/18

CPC分类号： C08F293/00 ,  A61K9/1075 ,  B01J13/08 ,  B01J31/063 ,  B01J35/23 ,  B01J37/0072 ,  B01J37/04 ,  C08J5/18 ,  B01J2231/005 ,  C08J2353/02

摘要： Proposed are a core-satellite micelle containing a tetra-block copolymer and a preparation method thereof. The core-satellite micelle includes a core, a shell surrounding the core, and a plurality of satellite domains positioned inside the shell. The core-satellite micelle contains a tetra-block copolymer represented by Structural Formula 1 below. The shell includes a first-monomer first block A1 and a first-monomer second block A2, and the satellite domain includes a second-monomer first block B1 and a second-monomer second block B2. The core-satellite micelle is foiled through self-assembly of the tetra-block copolymer, thereby having a larger interfacial contact area than existing block-copolymer micelles. Therefore, the core-satellite micelle can be used in next-generation nanotechnology applications such as drug delivery systems, porous catalyst materials, and sensors.

A1-B1-A2-B2  [Structural Formula 1]

In Structural Formula 1,



A1 is a first-monomer first block,
B1 is a second-monomer first block,
A2 is a first-monomer second block, and
B2 is a second-monomer second block.

公开(公告)号：US20240182620A1

公开(公告)日：2024-06-06

申请号：US18081426

申请日：2022-12-14

申请人： National Kaohsiung University of Science and Technology

发明人： Der-Shyan SHEU ,  Shun-Ze SIAO ,  Chun-Hao CHEN

IPC分类号： C08F293/00

CPC分类号： C08F293/00

摘要： A polyhydroxyalkanoate block copolymer includes a first segment containing a first monomeric unit represented by formula (I); and a second segment containing the first monomeric unit represented by formula (I), a second monomeric unit represented by formula (II), and a third monomeric unit represented by formula (III),




The first segment and the second segment are arranged in blocks. A method for preparing the polyhydroxyalkanoate block copolymer is also disclosed.

公开(公告)号：US20240174785A1

公开(公告)日：2024-05-30

申请号：US18548377

申请日：2022-03-10

申请人： KURARAY CO., LTD.

发明人： Takumi TAKAYAMA ,  Hinako TSUCHIYA ,  Kazuhiko MAEKAWA

IPC分类号： C08F293/00

CPC分类号： C08F293/00

摘要： A method of producing a polymer including a polymerization step of obtaining a polymer by controlled radical polymerization of a monomer (Y) in the presence of an organic compound (A) represented by formula (I) and its constituents and a radical generator (B), where a molar ratio (B/A) of (B) to (A) is from 0.5 to 20. The production method allows synthesis of a highly safe polymer with a high molecular weight while precisely controlling the molecular sequence and the end structure. In addition, the production method is low in toxicity, environmentally friendly, and operated at low costs.

公开(公告)号：US11993714B2

公开(公告)日：2024-05-28

申请号：US16763567

申请日：2018-11-16

申请人： Arkema France

发明人： Quentin P. Pineau ,  Philippe Denis H. Blondel ,  Jean-Jacques Flat

IPC分类号： C08L77/12 ,  C08F293/00 ,  C08G69/48

CPC分类号： C08L77/12 ,  C08F293/00 ,  C08G69/48

摘要： The invention relates to a copolymer containing rigid polyamide PA blocks and flexible blocks, characterized in that it includes at least one carboxylic acid chain end blocked with a polycarbodiimide, said copolymer according to the invention being in noncrosslinked linear form. The invention also relates to the use of a polycarbodiimide in a process for manufacturing a copolymer containing rigid polyamide PA blocks and flexible blocks, including at least one carboxylic acid chain end, for improving the extrudability of the copolymer, the drawability of the copolymer, the abrasion resistance, the tear strength and the durability of the copolymer, without increasing its dispersity.

公开(公告)号：US11987681B2

公开(公告)日：2024-05-21

申请号：US17223544

申请日：2021-04-06

申请人： Chulsung Bae ,  Chang Y. Ryu ,  Ding Tian

发明人： Chulsung Bae ,  Chang Y. Ryu ,  Ding Tian

IPC分类号： C08J5/22 ,  B01J41/14 ,  B01J47/12 ,  C08F293/00

CPC分类号： C08J5/2287 ,  B01J41/14 ,  B01J47/12 ,  C08F293/00 ,  C08J2309/06

摘要： An anion exchange membrane is provided by converting carbon-carbon double bonds in the backbone of polystyrene-block-polybutadiene-block-polystyrene (SBS) into epoxide groups. Unmodified SBS is first partially hydrogenated to remove about 65% to about 90% of carbon-carbon double bonds. The remaining double bonds are then converted to epoxide groups to form an epoxidized SBS. UV-initiated ring opening reactions between the epoxidized SBS and haloalkyloxiranes are then employed to simultaneously functionalize and crosslink the epoxidized SBS. The halide groups in the crosslinked polymer network can be replaced via nucleophilic substitution to offer anion conductivity, e.g., via reaction with trimethylamine. Further ion exchange reactions can then be performed to make the membrane hydroxide conductive. The crosslinked membranes described herein exhibit a mechanical strength improvement of 200% compared to unmodified SBS, while maintaining high hydroxide conductivity. This synthetic platform is advantageous to provide mechanically robust anion exchange membranes for fuel cell applications.

公开(公告)号：US20240158559A1

公开(公告)日：2024-05-16

申请号：US18485251

申请日：2023-10-11

申请人： INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY

发明人： Dong Hyun LEE ,  Eun Il TAK ,  Hye Jin KIM ,  Su Min JUNG

IPC分类号： C08F293/00 ,  C08J5/18

CPC分类号： C08F293/00 ,  C08J5/18 ,  C08F2400/02 ,  C08J2353/00

摘要： The present inventive concept provides a self-healing copolymer or self-healing block copolymer, a method of preparing the same, and a film comprising the same. The self-healing copolymer is a copolymer containing three or more types of monomers such as a methacrylate-based compound as a first monomer, an acrylate-based compound as a second monomer, and] N-2-(phthalimido ethyl methacrylate) (NPEMA), phenyl methacrylate (PMA) or N-(4-hydroxyphenyl)methacrylamide (HPMMA) as a third monomer. The self-healing block copolymer is a block copolymer comprising a self-healing random copolymer containing three or more types of monomers and a styrene-based compound polymerized at the end of the self-healing random copolymer. The film comprising the self-healing copolymer or self-healing block copolymer can self-heal at low temperature or at room temperature in the event of structural damage such as cracks and scratches formed on the surface without the need for additional processes, thereby offering excellent utility in various applications.

公开(公告)号：US20240133058A1

公开(公告)日：2024-04-25

申请号：US18300380

申请日：2023-04-13

申请人： Twelve Benefit Corporation

发明人： Ziyang Huo ,  Lihui Wang ,  Kenneth X. Hua ,  Sichao Ma ,  Edward Izett ,  Sara Hunegnaw ,  Ajay R. Kashi ,  Etosha R. Cave ,  Kendra P. Kuhl ,  Maxwell Goldman ,  Angelica L. Reyes ,  Kathryn L. Corp

IPC分类号： C25B9/23 ,  C08F293/00 ,  C25B1/23 ,  C25B13/02 ,  C25B13/08

CPC分类号： C25B9/23 ,  C08F293/00 ,  C25B1/23 ,  C25B13/02 ,  C25B13/08

摘要： Provided herein are membrane electrode assemblies (MEAs) for COx reduction. According to various embodiments, the MEAs are configured to address challenges particular to COx including managing water in the MEA. Bipolar and anion-exchange membrane (AEM)-only MEAs are described along with components thereof and related methods of fabrication.

公开(公告)号：US20240052083A1

公开(公告)日：2024-02-15

申请号：US18366043

申请日：2023-08-07

申请人： Kraton Corporation

发明人： Jiaqi Yan ,  Manjola Plaku

IPC分类号： C08F293/00 ,  C08J5/22 ,  B01D69/02 ,  B01D71/80 ,  B01D71/26 ,  B01D71/28

CPC分类号： C08F293/00 ,  C08J5/2243 ,  B01D69/02 ,  B01D71/80 ,  B01D71/261 ,  B01D71/262 ,  B01D71/281 ,  C08J2353/00 ,  B01D2325/24 ,  B01D2325/20

摘要： The disclosure relates to a cured composition obtained by curing a curable polymer composition comprising: (a) at least one hydroxyl group containing compound selected from diols, triols, tetraols, polyols, polymeric polyols, and mixtures thereof; and (b) a sulfonated styrenic block copolymer (SSBC) containing a block A, a block B, and a block D. Each block A and D is resistant to sulfonation and the block B is susceptible to sulfonation having a degree of sulfonation of >10 mole %. The curable polymer composition is cured by treating with radiation or thermal energy for improved mechanical properties. The cured composition can be used as a membrane in water purification applications.