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公开(公告)号：US20240270880A1
公开(公告)日：2024-08-15
申请号：US18394838
申请日：2023-12-22
Applicant: BRASKEM AMERICA, INC. , Case Western Reserve University
Inventor： Kimberly Miller McLoughlin , Sarah Mitchell , Michelle Sing , Jayme Kennedy , Ica Manas-Zloczower , Alireza Bandegi , Amin Osouski , Thomas Gray
IPC: C08F8/14 , B01J31/04 , C08F210/02 , C08F218/08
CPC classification number: C08F8/14 , B01J31/04 , C08F210/02 , C08F218/08
Abstract: This invention relates to a process for producing a recyclable ethylene-vinyl ester polymer comprising reacting an ethylene-vinyl ester polymer having an irreversibly crosslinked structure with a poly(vinyl alcohol) (PVA), via a transesterification reaction, in the presence of a transesterification catalyst, to produce a recyclable ethylene-vinyl ester vitrimer. This invention also relates to a recyclable ethylene-vinyl ester vitrimer prepared according to the process.
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公开(公告)号：US11746208B2
公开(公告)日：2023-09-05
申请号：US17082092
申请日：2020-10-28
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Liang Yue , Vahab Solouki Bonab , Ammar Patel , Dian Yuan , Vahid Karimkhani , Ica Manas-Zloczower
CPC classification number: C08J11/04 , B01J31/122 , C08J3/203 , C08J3/2053 , C08J11/16 , C08K3/041 , C08J2300/24 , C08J2363/02 , C08J2375/06 , C08K3/041 , C08L63/00 , C08K3/041 , C08L75/04
Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.
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公开(公告)号：US20210054160A1
公开(公告)日：2021-02-25
申请号：US17082092
申请日：2020-10-28
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Liang Yue , Vahab Solouki Bonab , Ammar Patel , Dian Yuan , Vahid Karimkhani , Ica Manas-Zloczower
Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.
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公开(公告)号：US10125298B2
公开(公告)日：2018-11-13
申请号：US14211032
申请日：2014-03-14
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Alexis Abramson , Ica Manas-Zloczower , Nayandeep K. Mahanta , Marcio R. Loos
IPC: B32B9/00 , C09K5/14 , C08K3/04 , H01L23/373 , B32B27/38
Abstract: Micro-nano hybrid composites exhibiting desirable thermal conductivity levels due to the presence of specific ratios of graphite to graphene that have been found to reduce the overall thermal interface resistance. The composites are preferably epoxy matrix composites in some embodiments. Devices including the composites and methods of preparing the composites are also disclosed.
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公开(公告)号：US11339268B2
公开(公告)日：2022-05-24
申请号：US16942935
申请日：2020-07-30
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Ica Manas-Zloczower , Liang Yue
Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).
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Patent Agency Ranking
公开(公告)号：US20230079213A1
公开(公告)日：2023-03-16
申请号：US17946081
申请日：2022-09-16
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Boran Zhao , Kristen Rohm , Xuehui Gong , Fan Wang , Donald Feke , Ica Manas-Zloczower
IPC: C08F265/06 , C08J9/00
Abstract: A compact, highly expandable sorbent made from polymeric materials is contemplated. The resulting sorbent can absorb more than 20 times its original volume owing to an internal foam-like structure having micron-level voids bisected by internal struts which themselves have nano-level pores. Further, this sorbent can be compressed and reused multiple times, thereby making it an ideal substance to facilitate separation of disparate fluids, such as oils floating on or within an aqueous solution.
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公开(公告)号：US20210032432A1
公开(公告)日：2021-02-04
申请号：US16942935
申请日：2020-07-30
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Ica Manas-Zloczower , Liang Yue
Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).
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公开(公告)号：US20160376487A1
公开(公告)日：2016-12-29
申请号：US14211032
申请日：2014-03-14
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Alexis Abramson , Ica Manas-Zloczower , Nayandeep K. Mahanta , Marcio R. Loos
CPC classification number: C09K5/14 , B32B5/16 , B32B27/38 , B32B2260/025 , B32B2260/046 , B32B2264/108 , B32B2307/206 , B32B2307/302 , B32B2307/514 , B32B2307/732 , B32B2457/00 , C08K3/04 , C08K3/042 , C08K2201/011 , C08K2201/014 , H01L23/373 , H01L23/3737 , Y10T428/29 , Y10T428/2927 , Y10T428/2982 , Y10T428/30 , C08L63/00
Abstract: Micro-nano hybrid composites exhibiting desirable thermal conductivity levels due to the presence of specific ratios of graphite to graphene that have been found to reduce the overall thermal interface resistance. The composites are preferably epoxy matrix composites in some embodiments. Devices including the composites and methods of preparing the composites are also disclosed.
Abstract translation: 微纳米混合复合材料由于存在特定比例的石墨与石墨烯而显示出期望的导热性水平，这些比例已被发现降低了整个热界面电阻。 在一些实施方案中，复合材料优选为环氧树脂基复合材料。 还公开了包括复合材料和制备复合材料的方法的装置。
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公开(公告)号：US20220282056A1
公开(公告)日：2022-09-08
申请号：US17750730
申请日：2022-05-23
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Ica Manas-Zloczower , Liang Yue , Mehrad Amirkhosravi
IPC: C08J11/26
Abstract: Thermosetting plastics are recycled by process that begins with grinding the plastic into small pieces. This particulate is then mixed with a catalyst and ball mill milled to a fine powder, which can then be reprocessed via molding (e.g., hot-press, injection, etc.).
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公开(公告)号：US10822467B2
公开(公告)日：2020-11-03
申请号：US15964824
申请日：2018-04-27
Applicant: CASE WESTERN RESERVE UNIVERSITY
Inventor： Liang Yue , Vahab Solouki Bonab , Ammar Patel , Dian Yuan , Vahid Karimkhani , Ica Manas-Zloczower
Abstract: Methods for recycling thermoset polymers, particularly by changing them into dynamic networks with the use of an appropriate catalyst solution which transforms the thermoset polymer into a vitrimer-like composition. The methods include the step of swelling a crosslinked thermoset polymer in a solution including a catalyst, whereby the catalyst diffuses into the thermoset polymer, in particular into the thermoset network. Upon removal of the liquid portion of the solution, such as solvent, the catalyst facilitates the occurrence of exchange reactions at elevated temperatures, rendering the system a dynamic network. The vitrimerized composition having the thermoset polymer and catalyst is recyclable and processable and thus suitable for many end uses.
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