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公开(公告)号：US20240352216A1
公开(公告)日：2024-10-24
申请号：US18684233
申请日：2022-08-18
发明人： Stefanie Eiden , Rainer Bellinghausen , Aurel Wolf , Rolf Albach
IPC分类号： C08J11/12 , C07C209/62
CPC分类号： C08J11/12 , C07C209/62 , C08J2375/04
摘要： The invention relates to a method according to claim 1 for the commercial implementation of a pyrolysis, and to pyrolysis devices for the pyrolysis of pyrolysis stock used in this method. The pyrolysis stock contains a polymeric compound having at least one structural polyurethane unit of the formula (I), wherein Q is a hydrocarbon group with 2 to 8 carbon atoms, preferably 3 to 8 carbon atoms, and n represents a number from 2 to 4, most preferably 2, and -* represents a covalent bond to the polymer backbone. The method and the pyrolysis device according to the invention allow, even with higher compounds of pyrolysis stock an amount of pyrolysis product to be obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.
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公开(公告)号：US20240343882A1
公开(公告)日：2024-10-17
申请号：US18290905
申请日：2022-03-28
发明人： Takayuki IHARA , Takashi FUJIWARA , Takeshi MUKAI
CPC分类号： C08J11/12 , C08J11/16 , C10G1/008 , C10G1/10 , C08J2327/06 , C08J2367/02
摘要： The present invention relates to a raw-material supply system and a raw-material supply method for pyrolyzing waste plastic including PVC and PET. The raw-material supply system includes: a slaked-lime supply device (12) configured to feed slaked lime to the waste plastic; an operation controller (15) configured to instruct the slaked-lime supply device (12) to feed the slaked lime to the waste plastic, the slaked lime to be fed having the number of moles that is 1 to 4 times a total number of moles of the polyvinyl chloride and the polyethylene terephthalate in the waste plastic; a melting dechlorination device (18) configured to dechlorinate the polyvinyl chloride and hydrolyze the polyethylene terephthalate by mixing the waste plastic and the slaked lime while heating the waste plastic and the slaked lime; a degassing hopper (20) coupled to the melting dechlorination device (18); and a raw-material supply device (22) configured to deliver the molten waste plastic from the degassing hopper (20) to a pyrolysis furnace (6).
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公开(公告)号：US12116337B2
公开(公告)日：2024-10-15
申请号：US17641474
申请日：2020-09-17
发明人： Norbert Niessner , Bianca Wilhelmus , Achim Schmidt-Rodenkirchen , Konstantin Mierdel , Frank Neuner
CPC分类号： C07C4/22 , C08J11/12 , C07C2527/224 , C08J2325/06
摘要： The invention relates to a process for the preparation of styrene monomers by depolymerising polystyrene, to a device for carrying out the process and to the use of a fluidised bed reactor for the depolymerisation of polystyrene. Said process comprising the following steps: a) feeding a polymer composition (A) containing 60 to 99.9 wt. polystyrene, based on the total weight of the polymer composition (A), into the reaction zone (R) of a pyrolysis reactor (P); b) thermally cracking the polystyrene contained in the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) at a temperature of between 400° C. to 1000° C. to obtain a product mixture (G) containing styrene monomers and other components; c) removing the product mixture (G) obtained in step b) from the reaction zone (R) of the pyrolysis reactor (P); d) cooling the product mixture (G) removed in step c) to obtain a condensed product mixture (K) containing styrene monomers and further components; and e) separating the styrene monomers from the further components of the condensed product mixture (K) obtained in step d), wherein the average residence time (Z) of the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) is from 0.01 sec to 10 sec.
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4.发明公开公开(公告)号：US20240254395A1
公开(公告)日：2024-08-01
申请号：US18562385
申请日：2022-06-01
发明人： Stefanie Eiden , Rainer Bellinghausen , Aurel Wolf , Christian Hahn , Tim Loddenkemper , Carola Jendrzok
IPC分类号： C10B53/07 , B01J21/04 , B01J23/02 , C07C209/62 , C08G18/32 , C08G18/76 , C08J11/12 , C10B57/06 , C10B57/14
CPC分类号： C10B53/07 , B01J21/04 , B01J23/02 , C07C209/62 , C08G18/324 , C08G18/7671 , C08J11/12 , C10B57/06 , C10B57/14 , C08J2375/04
摘要： The invention relates to a process according to claim 1 and pyrolysis devices used therein for the pyrolysis of pyrolysis stock comprising polyurethane-containing material, allowing carrying out pyrolysis on an industrial scale. According to the invention, even with higher amounts of pyrolysis stock an amount of pyrolysis product is obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.
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5.发明公开公开(公告)号：US20240228990A9
公开(公告)日：2024-07-11
申请号：US18277149
申请日：2022-02-15
CPC分类号： C12N9/16 , B09B3/60 , C08J11/12 , C12N1/16 , C12N1/20 , C12N15/63 , C12Y301/00 , C08J2323/06 , C12N2800/101 , C12N2800/102
摘要： The present invention relates to the fields of life sciences, micro-organisms and degradation of hydrocarbon chains such as plastics or synthetic polymers. Specifi-cally, the invention relates to an isolated specific enzyme, or a fragment thereof, wherein said enzyme or fragment is capable of degrading a hydrocarbon chain, and to a micro-organism or a host cell comprising the enzyme or a fragment thereof. Also, the present invention relates to a polynucleotide encoding the enzyme or fragment thereof, and to an expression vector or plasmid comprising the polynucleotide of the present invention. And still, the present invention relates to use of the enzyme, fragment, micro-organism, host cell, polynucleotide, expression vector or plasmid of the present invention for degrading a hydrocarbon chain; to a method of degrading a hydrocarbon chain with the specific enzyme or a fragment thereof; and to a method of producing the enzyme or fragment thereof of the present invention.
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6.发明公开公开(公告)号：US20240101781A1
公开(公告)日：2024-03-28
申请号：US17769010
申请日：2020-10-13
IPC分类号： C08J11/12 , C08F212/08
CPC分类号： C08J11/12 , C08F212/08 , C08F2800/20
摘要： The invention relates to a method of producing styrene monomers by depolymerization (breakdown) of a styrene-copolymer-containing polymer mass, a device for carrying out the method, the use of a styrene copolymer for producing styrene monomers by thermal depolymerization and the use of a styrene copolymer as an additive in the thermal depolymerization of polystyrene. The polymer mass contains I) 10 to 100 wt %, relative to the total weight of the polymer mass (A), of a styrene copolymer (I), comprising: Ia) 10 to 99 wt %, relative to the styrene copolymer (I), of repeating units (Ia) that originate from styrene; and Ib) 1 to 90 wt %, relative to the styrene copolymer (I), of repeating units (Ib) that originate from a monomer the homopolymers of which have a ceiling temperature of below 350° C.; and II) optionally 0 to 90 wt % polystyrene (II).
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公开(公告)号：US20230391980A1
公开(公告)日：2023-12-07
申请号：US18026457
申请日：2021-09-16
IPC分类号： C08J11/12
CPC分类号： C08J11/12 , C08J2300/30
摘要： The invention relates to a pyrolysis method and reactor for recovering at least one component from a tire material using thermal decomposition. The tire material is delivered to a pyrolytic chamber (1), exposed to a controlled atmosphere and heated to a decomposition temperature of the at least one component in the pyrolytic chamber (1) by microwave radiation. A variable power microwave radiation at frequencies between 300 MHz and 2500 MHZ is applied to sequentially vary a temperature in the pyrolytic chamber (1) over a temperature range including the decomposition temperature of the at least one component.
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公开(公告)号：US11773215B2
公开(公告)日：2023-10-03
申请号：US16970736
申请日：2019-04-01
申请人： Novomer, Inc.
发明人： Utpal Mahendra Vakil
CPC分类号： C08G63/08 , B29C48/0018 , B29C48/288 , C08J5/18 , C08J11/12 , B29K2067/04 , B29K2995/004 , B29K2995/006 , B29K2995/0077 , B29K2995/0088 , C08J2367/04
摘要： Provided is a method of producing a film by cryogenically grinding polypropiolactone to form a powder, and extruding the powder to form the film. Provided herein are also polypropiolactone films having certain biocontent and compostability, as well as certain mechanical and physical properties. Such films may also be suitable for use as packaging materials.
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公开(公告)号：US20230257324A1
公开(公告)日：2023-08-17
申请号：US18026450
申请日：2021-09-16
CPC分类号： C07C4/04 , C08J11/12 , C10B53/07 , C10G1/10 , C08J2321/00 , C08J2387/00 , C10G2300/1003 , C10G2400/20 , C10G2400/30
摘要： The invention relates to a pyrolysis method and reactor for recovering at least one component from a carbon based material using thermal decomposition. The carbon based material is delivered to a pyrolytic chamber (1), exposed to a controlled atmosphere and heated to a decomposition temperature of the at least one component in the pyrolytic chamber (1) by microwave radiation. A variable power microwave radiation at frequencies between 300 MHz and 2200 MHZ is applied to sequentially increase a temperature in the pyrolytic chamber (1) over a temperature range including the decomposition temperature of the at least one component.
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公开(公告)号：US20230241805A1
公开(公告)日：2023-08-03
申请号：US18133585
申请日：2023-04-12
申请人： Milliken & Company
发明人： Dale R. Williams , Joseph Wallen , Ty Grant Dawson , Nils David Sellman, JR. , Daniel Taylor McBride , Joseph R. Royer , John L. Sanchez
CPC分类号： B29B9/12 , A47G27/02 , D06N7/0068 , D06N7/0076 , D06N7/0081 , D06N7/0065 , C08J11/10 , B29B9/06 , B29B17/0036 , C08J11/12 , Y10T428/23979 , D06N2213/065 , D06N2203/061 , D06N2213/02 , B29K2067/00
摘要： This invention relates to tufted floorcovering articles, including carpet tiles and broadloom carpet. In particular, this invention relates to tufted floorcovering articles made from the family of polymers known as polyester. Specifically, this invention relates to tufted carpet tile products made from polyester. The polyester carpet tiles meet commercial performance specifications and are fully end-of-life recyclable.
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