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公开(公告)号：US12202969B2
公开(公告)日：2025-01-21
申请号：US17612068
申请日：2020-05-26
Applicant: Toray Industries, Inc.
Inventor： Kenichi Harimoto , Kanta Tanabe , Kazuhiro Tanahashi , Hirokazu Sakaguchi
Abstract: A polymer composition contains polylactic acid and a dilactide/ε-caprolactone copolymer, in which a content of the polylactic acid relative to a total of 100 mass % of the polylactic acid and the dilactide/ε-caprolactone copolymer is 20 to 40 mass %, and in which the dilactide/ε-caprolactone copolymer satisfies (1) an R value represented by a following formula is 0.45 or more and 0.99 or less: R = [ AB ] / ( 2 [ A ] [ B ] ) × 100 where [A] is a molar fraction (%) of a dilactide residue in the dilactide/ε-caprolactone copolymer, [B] is a molar fraction (%) of an ε-caprolactone residue in the dilactide/ε-caprolactone copolymer, and [AB] is a molar fraction (%) of a structure in which a dilactide residue and an ε-caprolactone residue are adjacent to each other (A-B and B-A) in the dilactide/ε-caprolactone copolymer, and (2) at least one of the dilactide residue and the ε-caprolactone residue has a degree of crystallization of less than 14%.
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公开(公告)号：US20250002644A1
公开(公告)日：2025-01-02
申请号：US18703878
申请日：2022-11-07
Inventor： Aleksandr V. Zhukhovitskiy , Rachael A.J. Ditzler
Abstract: The present disclosure relates to polymers, methods for polymer synthesis, and methods of modifying the backbone of said polymers. Modification of the polymer backbone via a sigmatropic rearrangement allows facile entry into new, highly ordered polymers.
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公开(公告)号：US20240392062A1
公开(公告)日：2024-11-28
申请号：US18689381
申请日：2023-05-26
Applicant: LG CHEM, LTD.
Inventor： Won Hee WOO , Si Jung PARK , Heung Yeal CHOI , Wan Kyu OH
IPC: C08G63/08 , C08G63/91 , C08G101/00 , C08K5/09 , C08K5/1515 , C08K5/50
Abstract: A polylactide resin composition that includes a specific branching agent, a phosphorus compound, an organic acid anhydride, and a polylactide resin, resulting in a highly branched polylactide resin, which had not been previously achieved, is possible, exhibiting improved physical properties, especially melt strength, are improved compared to conventional polylactide resins, and it can be applied in processes that were difficult to apply conventional polylactide resins, such as expanded foam. The branching agent is a compound of Chemical Formula 1:
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公开(公告)号：US20240376257A1
公开(公告)日：2024-11-14
申请号：US18784356
申请日：2024-07-25
Applicant: DAK AMERICAS LLC
Inventor： Peter KEZIOS , Thomas TAYLOR
Abstract: Compositions of high molecular weight poly(hydroxy acid) polymer having good thermal stability and a weight average molecular weight of >100,000 by GPC. The compositions include one or more chain-terminator compounds/impurities which may be incorporated into the polymer and rendered harmless by the presence of appropriate amounts of bi-functional and multi-functional polymerization initiators. A process including first mixing glycolic acid and/or lactic acid (with chain-terminators), and a diol or di-acid initiator, and at least one multifunctional initiator to form a liquid monomer mixture in an agitated polycondensation reactor. Next, polycondensing to form a liquid reaction mixture comprising a pre-polymer having a weight average molecular weight of >10,000 by GPC, and greater than 80% by mole hydroxyl or carboxyl end-group termination, then crystallizing to form a first solid reaction mixture. Then, solid state polycondensing the solid reaction mixture to form a solid reaction mixture having a moisture level less than 50 ppm by weight. Then, mixing the solid reaction mixture with an appropriate reactive coupling agent in a melting and mixing extruder to couple and form the reaction mixture and form the final poly(hydroxy acid) polymer.
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公开(公告)号：US20240374793A1
公开(公告)日：2024-11-14
申请号：US18778819
申请日：2024-07-19
Applicant: Tam Christine Thompson-Steckel
Inventor： David Russell BOW , Calum Bruce MACLEOD , Jeffrey JUMP
IPC: A61L31/02 , A61F2/82 , A61F2/88 , A61F2/90 , A61L31/06 , A61L31/10 , A61L31/14 , B33Y80/00 , C08G63/08 , C09D5/00 , C09D167/04 , C22C23/00
Abstract: There is described a bioresorbable metal alloy which is particularly suitable for the formation of bioresorbable medical devices, for example stents. The metal alloy essentially comprises 3.2 to 4.8% by weight lithium, 0.5 to 2.0% by weight yttrium; and the balance being magnesium, in addition to any trace elements. The metal alloy can be drawn into a wire which can be shaped into a stent scaffold. The stent can be produced using one or more stent scaffolds together with one or more bioresorbable polymer connectors, for example formed from PLGA.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240327569A1
公开(公告)日：2024-10-03
申请号：US18580087
申请日：2022-08-04
Applicant: LG CHEM, LTD.
Inventor： Yeonju Lee , Suhyun Cho , Donggyun Kang , Jong Young Choi , Chul Woong Kim , Harim Jeon
CPC classification number: C08G63/08 , C08G63/823 , C08G2230/00
Abstract: In a poly(3-hydroxypropionic acid) block copolymer according to the present invention, 3-hydroxypropionic acids and lactone monomers or, additionally, lactide monomers are introduced so as to improve various physical properties such as the thermal property, crystallinity and tensile property of a biodegradable polymer, and thus the application fields thereof can be expanded.
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公开(公告)号：US12091494B2
公开(公告)日：2024-09-17
申请号：US17745635
申请日：2022-05-16
Applicant: SWIMC LLC
Inventor： Anthony J. Tye
IPC: C08G59/22 , C08G63/06 , C08G63/08 , C09D163/00 , C09D187/00
CPC classification number: C08G59/22 , C08G63/06 , C08G63/08 , C09D163/00 , C09D187/005
Abstract: The present disclosure describes polymers and improved resin systems having flexibility, low water uptake, good adhesion, chemical resistance, and/or weatherability at extreme negative temperatures, such as temperatures down to about −40° C. or below and even temperatures down to about −60° C. The systems herein, in approaches, include a polymer or resin system for an epoxy component of an epoxy/amine system including an epoxy and/or acetoacetoxy functionalized flexible block copolymer that has a base hydrophobic polyol block or core, optional flexible monomeric blocks, and epoxy, acetoacetoxy, or both functional endcaps.
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公开(公告)号：US12065539B2
公开(公告)日：2024-08-20
申请号：US18119400
申请日：2023-03-09
Applicant: POLY-MED, INC.
Inventor： Michael Aaron Vaughn , Prabhjot Saini
IPC: C08F2/46 , B33Y70/00 , C08F2/50 , C08F283/01 , C08F283/02 , C08F297/00 , C08G61/04 , C08G63/08 , C08G63/64 , C08G63/91 , B29C64/124 , B29K33/00 , B29K67/00 , B29K81/00 , B29K96/02 , B29K96/04 , B29K105/00 , B33Y10/00
CPC classification number: C08G63/08 , B33Y70/00 , C08F283/01 , C08F283/02 , C08F297/00 , C08G63/64 , C08G63/912 , B29C64/124 , B29K2033/12 , B29K2067/04 , B29K2081/00 , B29K2096/02 , B29K2096/04 , B29K2105/0002 , B33Y10/00
Abstract: Compounds and compositions are provided which are useful in additive printing, particularly additive printing techniques such as stereolithography (SLA) wherein a macromer is photopolymerized to form a manufactured article. Representative compounds comprise a polyaxial central core (CC) and 2-4 arms of the formula (A)-(B) or (B)-(A) extending from the central core, where at least one of the arms comprise a light-reactive functional group (Q) and (A) is the free-radical polymerization product from monomers selected from trimethylene carbonate (T) and ε-caprolactone (C), while (B) is the free-radical polymerization product from monomers selected from glycolide, lactide and ρ-dioxanone.
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公开(公告)号：US12012502B2
公开(公告)日：2024-06-18
申请号：US17867964
申请日：2022-07-19
Applicant: Zhejiang Normal University
Inventor： Bin Wang , Xiping Li , Hesheng Liu
IPC: C08K9/06 , C08G63/08 , C08K3/04 , C08K5/14 , C08K5/5425
CPC classification number: C08K9/06 , C08G63/08 , C08K3/041 , C08K3/042 , C08K5/14 , C08K5/5425 , C08K2201/011
Abstract: The present disclosure is related to the field of polymer processing, and, in particular, to a vinyl-modified nanofiller interfacial compatibilizer and a method for producing a compatibilized polymer blend. Vinyl-modified nanofillers can be used together with an initiator as a compatibilizer for polymer blends. The initiator can initiate a free radical reaction between the chains of the polymers in the blend and the vinyl groups on the surface of the vinyl-modified nanofiller, leading to in situ formation of a co-crosslinked polymer and thus compatibilization of the blend as well as improved tensile strength and modulus thereof. Results of examples showed that vinylsilane grafted onto the surface of the vinyl-modified nanofiller makes it possible for the nanofiller to be used as an effective compatibilizer. The vinyl-modified nanofillers can be used as a compatibilizer for various polymer blends systems.
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公开(公告)号：US11999811B2
公开(公告)日：2024-06-04
申请号：US16963383
申请日：2019-02-05
Applicant: HYDRO-QUÉBEC
Inventor： Basile Commarieu , Jean-Christophe Daigle , Pierre-Michel Jalbert , Gilles Lajoie , Catherine Gagnon , Abdelbast Guerfi , Michel Armand , Karim Zaghib
IPC: C08F290/06 , C08F220/06 , C08G63/08 , C08G63/66 , C08G65/26 , H01G11/56 , H01M10/0525 , H01M10/0565
CPC classification number: C08F290/061 , C08F220/06 , C08G63/08 , C08G63/66 , C08G65/2603 , H01G11/56 , H01M10/0525 , H01M10/0565 , H01M2300/0091
Abstract: The present technology relates to a polymer comprising at least one ester repeating unit and one ether repeating unit for use in an electrochemical cell, particularly in electrochemical accumulators such as lithium batteries, sodium batteries, potassium batteries and lithium-ion batteries. More specifically, the use of this polymer as a solid polymer electrolyte (SPE), as a matrix for forming gel electrolytes, or as a binder in an electrode material are also contemplated.
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