公开(公告)号：US20240344242A1

公开(公告)日：2024-10-17

申请号：US18294751

申请日：2022-06-30

申请人： BRIDGESTONE CORPORATION

发明人： Masahiro FUJIE ,  Kenichi SUGIMOTO

IPC分类号： D01F6/62 ,  B60C9/00 ,  B65G15/34 ,  C08G63/19 ,  C08J11/10 ,  F16L11/02

CPC分类号： D01F6/62 ,  C08G63/19 ,  C08J11/10 ,  B60C9/0042 ,  B65G15/34 ,  C08J2367/03 ,  D10B2505/00 ,  D10B2505/022 ,  F16L11/02

摘要： Provided is a chemically-recycled PET fiber with reduced degradation and superior strength and durability, and rubber-fiber composite products, such as tires, using the chemically-recycled PET fiber. The chemically-recycled PET fiber is made by polymerizing a raw material containing at least one of a monomer and an intermediate that are obtained by depolymerization of a PET product, the monomer including terephthalic acid (TPA) and/or dimethyl terephthalate (DMT) and the intermediate including bis(2-hydroxyethyl) terephthalate (BHET). The chemically-recycled PET fiber has a carboxyl end group (CEG) concentration of 15 eq/ton or less and a degree of crystallinity of 40% or more.

公开(公告)号：US20240254307A1

公开(公告)日：2024-08-01

申请号：US18630089

申请日：2024-04-09

申请人： GreenMantra Recycling Technologies Ltd.

发明人： Domenic Di Mondo

IPC分类号： C08J11/10 ,  B01J19/18 ,  C08J3/20 ,  C08J11/16 ,  C08L23/06 ,  C08L91/06

CPC分类号： C08J11/10 ,  C08J3/201 ,  C08J11/16 ,  C08L23/06 ,  C08L91/06 ,  B01J19/18 ,  B01J2219/0004 ,  B01J2219/00051 ,  C08J2323/02 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2491/06

摘要： An improved method forms and employs a wax to modify throughputs and melt flow in polymers. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a modified polymer.

公开(公告)号：US20240254304A1

公开(公告)日：2024-08-01

申请号：US18560726

申请日：2022-05-18

申请人： TOYOBO CO., LTD.

发明人： Akiko NISHIO

IPC分类号： C08J11/06 ,  C08J3/12 ,  C08J5/18 ,  C08J7/04 ,  C08J11/10

CPC分类号： C08J11/06 ,  C08J3/12 ,  C08J5/18 ,  C08J7/04 ,  C08J11/10 ,  C08J2367/03

摘要： To provide a method for producing a recycle film using a film to be discarded without reducing a recovery rate. The method for producing a recycle film, including the steps of: 1. a removing step including removing an attachable matter from a film including a functional layer; 2. a pulverizing step including pulverizing the film from which the attachable matter has been removed; 3. a chipping step including charging the obtained pulverized product into an extruder and chipping the pulverized product; and 4. a recycle substrate forming step including: charging the obtained recycle chip into an extruder of a film forming machine; forming the recycle chip into a film; and winding the film.

公开(公告)号：US12037466B2

公开(公告)日：2024-07-16

申请号：US17086836

申请日：2020-11-02

申请人： GEORGIA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

发明人： Bryan Stubblefield ,  Eric Gilbert

IPC分类号： C12N1/12 ,  C08J11/10 ,  C08J11/16 ,  C08L67/04 ,  C12N1/14 ,  C12N1/16 ,  C12N1/20 ,  C12N9/00 ,  C12P1/02 ,  C12P1/04 ,  C12P7/625 ,  C12P19/04

CPC分类号： C08J11/10 ,  C08J11/16 ,  C08L67/04 ,  C12N1/12 ,  C12N1/14 ,  C12N1/16 ,  C12N1/20 ,  C12N9/00 ,  C12P1/02 ,  C12P1/04 ,  C12P7/625 ,  C12P19/04 ,  C08J2377/02 ,  C08J2377/06 ,  Y02W30/62

摘要： Compositions and methods of making a culture medium from a polymeric material are described herein. The method can include (a) depolymerizing and/or dispersing the polymeric material to obtain a depolymerized and/or dispersed residue, and (b) combining the depolymerized and/or dispersed residue with one or more adjuvants to form a culture medium. In some embodiments, the polymeric material can be a plastic article, such as a waste carpet material. Culture media prepared from the compositions and methods are also described. The culture media are suitable for culturing microorganisms including bacterium, algae, and fungus. The microorganisms can be used to produce a bioproduct such as a biopolymer, an enzyme, or a cellular metabolite.

公开(公告)号：US20240217914A1

公开(公告)日：2024-07-04

申请号：US18562198

申请日：2022-05-20

申请人： MICROWAVE CHEMICAL CO., LTD.

发明人： Tomohisa YAMAUCHI ,  Akiyori HAGIMOTO ,  Kiyoshi TSUNODA ,  Yukari DEGUCHI

IPC分类号： C07C67/475 ,  C08J11/10

CPC分类号： C07C67/475 ,  C08J11/10 ,  C08J2333/12

摘要： The purpose of the present invention is to provide a method for producing a (meth)acrylic monomer that suppresses heterogeneity of a (meth)acrylic resin depolymerization system and that makes it easier for microwaves to reach the system interior efficiently. According to this method for producing a (meth)acrylic monomer, which includes a step 1 for irradiating a prepared (meth)acrylic resin with microwaves and mixing to obtain a melt containing a (meth)acrylic resin having reduced molecular weight, a step 2 for adding additional (meth)acrylic resin to the melt and mixing to obtain a mixture containing additional (meth)acrylic resin in the melt, and a step 3 for irradiating the mixture with microwaves and mixing to obtain a (meth)acrylic monomer, it is possible to suppress heterogeneity of the (meth)acrylic resin depolymerization system and to make it easier for microwaves to reach the system interior efficiently.

公开(公告)号：US20240209331A1

公开(公告)日：2024-06-27

申请号：US18043179

申请日：2021-08-30

申请人： CycleZyme AB

发明人： Peter Falck ,  Javier Antonino Linares-Patén

IPC分类号： C12N9/18 ,  C08J11/10 ,  C12P7/18

CPC分类号： C12N9/18 ,  C08J11/105 ,  C12P7/18 ,  C12Y301/01

摘要： The present disclosure relates to engineered polypeptides capable of degrading a polymer, such as polyethylene terephthalate (PET). The present disclosure also discloses polynucleotides encoding the polypeptides, vectors comprising the polynucleotides, as well as cells expressing the polynucleotides or vectors comprising the polynucleotides. Disclosed are also methods of degrading polymers, such as PET, and methods of manufacturing terephthalic acid and ethylene glycol.

公开(公告)号：US20240191148A1

公开(公告)日：2024-06-13

申请号：US18554093

申请日：2022-03-18

申请人： ExxonMobil Chemical Patents Inc.

发明人： Bryan A. Patel ,  Clara M. Buchanan ,  Saurabh S. Maduskar ,  Brenda A. Raich ,  Fritz A. Bematz ,  Cody M. Diaz

IPC分类号： C10G55/06 ,  C08J11/10

CPC分类号： C10G55/06 ,  C08J11/10 ,  C08J2327/06 ,  C08J2327/08 ,  C10G2300/201 ,  C10G2300/4006

摘要： Systems and methods are provided for reducing or minimizing the chloride content of products generated during co-processing of a plastic feedstock (such as plastic waste) in a refinery process. The reduction in chloride is achieved by mixing the plastic feedstock with one or more additional feedstocks for co-processing in a mixing and/or holding vessel that is maintained at a dechlorination temperature that allows for decomposition of chlorine from the plastic feedstock to form HCl, while reducing or minimizing other conversion of the plastic feedstock and/or the additional feedstock. A purge gas can be passed through the mixing/holding vessel to remove the evolved HCl from the vessel. Because the dechlorination temperature is selected to reduce or minimize conversion of the feedstocks in the mixture, the amount of carbon-containing products that are removed with the purge gas can be reduced or minimized. The dechlorinated mixture of plastic feedstock and additional feedstock(s) can then be processed in a convenient refinery process, such as a thermal cracking process (e.g., coking, visbreaking, other types of pyrolysis) or a catalytic conversion process (e.g., fluid catalytic cracking).

公开(公告)号：US11987672B2

公开(公告)日：2024-05-21

申请号：US17128992

申请日：2020-12-21

申请人： GreenMantra Recycling Technologies Ltd.

发明人： Domenic Di Mondo

IPC分类号： C08L91/06 ,  B01J19/18 ,  C08J3/20 ,  C08J11/10 ,  C08J11/16 ,  C08L23/06

CPC分类号： C08J11/10 ,  C08J3/201 ,  C08J11/16 ,  C08L23/06 ,  C08L91/06 ,  B01J19/18 ,  B01J2219/0004 ,  B01J2219/00051 ,  C08J2323/02 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2491/06 ,  C08L23/06 ,  C08L91/06

摘要： An improved method forms and employs a wax to modify throughputs and melt flow in polymers. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a modified polymer.

公开(公告)号：US20240124677A1

公开(公告)日：2024-04-18

申请号：US18474293

申请日：2023-09-26

申请人： HAINAN TROPICAL OCEAN UNIVERSITY

发明人： Jun MU ,  Lingdi YAO ,  Min LIU

IPC分类号： C08J11/10 ,  C12N1/20

CPC分类号： C08J11/10 ,  C12N1/20 ,  C12R2001/38

摘要： The present disclosure relates to the technical field of microbial applications, and in particular to Roseibium aggregatum and use, a culture method and a method for degrading plastics thereof. The Roseibium aggregatum provided by the present disclosure has an accession number of CGMCC No. 25240, and has a function of degrading plastic, which can degrade plastic in seawater with high degradation efficiency.

公开(公告)号：US20240018331A1

公开(公告)日：2024-01-18

申请号：US18347821

申请日：2023-07-06

申请人： Battelle Memorial Institute

发明人： Matthew COLACHIS ,  Jacob LILLY ,  Edward TRIGG ,  Kate KUCHARZYK ,  Amy Marie Heintz ,  Megan MOORE

IPC分类号： C08J11/10 ,  C08J11/16 ,  C08J11/24

CPC分类号： C08J11/105 ,  C08J11/16 ,  C08J11/24 ,  C08J2377/00

摘要： The present invention is directed to polyamide recovery from domestic or commercial waste. In particular, a method of polyamide recovery from domestic or commercial waste, via a selective dissolution procedure, using a methanol-calcium chloride solvent system, that isolates and recovers the polyamide at a particle size range that is particularly suitable for enzymatic depolymerization.