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公开(公告)号：US20210070956A1
公开(公告)日：2021-03-11
申请号：US17018790
申请日：2020-09-11
申请人： Braskem S.A.
发明人： Giancarlos Delevati
摘要： A polymer composition may include an ethylene vinyl acetate (EVA) polymer at an amount ranging from 10 to 90 phr; an elastomeric EVA composition at an amount ranging from 10 to 90 phr; a plasticizer at an amount ranging from 5 to 40 phr; a blowing agent in an amount ranging from 2 to 10 phr; and a peroxide in an amount ranging from 0.3 to 4 phr.
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公开(公告)号：US10829568B2
公开(公告)日：2020-11-10
申请号：US16065275
申请日：2015-12-22
申请人： Braskem S.A.
摘要： The present invention refers, in its generality, to a tubular reactor for homo or copolymerization of olefins, with one of more initiator injection devices. The invention also refers to an initiator device in a process fluid stream in a reactor polymerization reactor, and to a process for the production of polymers and copolymers of ethylene, particularly low density polymers (LDPE), that use the said device.
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123.发明申请公开(公告)号：US20200332103A1
公开(公告)日：2020-10-22
申请号：US16763907
申请日：2018-11-13
申请人： Braskem S.A.
发明人： Jason Clark , Leonardo Ito , Alexandre da Luz
IPC分类号： C08L23/14 , C08L23/08 , C08L23/06 , C08L23/12 , B29C64/141 , B33Y70/00 , B33Y80/00 , B33Y10/00 , B29C64/118
摘要： A polymer composition suitable for manufacturing of isotropic three-dimensional printed articles, the composition including: a matrix phase including a propylene-based polymer or copolymer; and a dispersed phase in the matrix phase, the dispersed phase including an ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase, wherein the matrix phase has a crystallization half-time of less than 60 minutes.
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公开(公告)号：US20200291146A1
公开(公告)日：2020-09-17
申请号：US16820306
申请日：2020-03-16
申请人： Braskem S.A.
发明人： Eduardo José Dotti , Omar Wandir Renck , Roger Ribeiro Malmegrim , Marcelo Farah , Antonio Marchi Netto , Cid Miro , Jorge Manuel Jardim da Silva
IPC分类号： C08F110/02 , C09D123/06
摘要： A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific delivery pressure and the polymerization having one or more specific peak temperatures. The molecular weight of the resulting polyethylene may be controlled by the selection of the delivery pressure and the one or more peak temperatures.
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公开(公告)号：US20200283806A1
公开(公告)日：2020-09-10
申请号：US16796417
申请日：2020-02-20
申请人： Braskem S.A.
摘要： The present application relates to recombinant microorganisms useful in the biosynthesis of monoethylene glycol (MEG), or optionally MEG and one or more co-product, from one or more hexose feedstock. The present application also relates to recombinant microorganisms useful in the biosynthesis of glycolic acid (GA), or optionally GA and one or more co-product, from one or more hexose feedstock. The present application relates to recombinant microorganisms useful in the biosynthesis of xylitol, or optionally xylitol and one or more co-product, from one or more hexose feedstock. Also provided are methods of producing MEG (or GA or xylitol), or optionally MEG (or GA or xylitol) and one or more co-product, from one or more hexose feedstock using the recombinant microorganisms, as well as compositions comprising the recombinant microorganisms and/or the products MEG (or GA or xylitol), or optionally MEG (or GA or xylitol) and one or more co-product.
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公开(公告)号：US20200277639A1
公开(公告)日：2020-09-03
申请号：US16806728
申请日：2020-03-02
申请人： Braskem S.A.
IPC分类号： C12P17/04 , C07D307/68
摘要： The present disclosure provides recombinant microorganisms and methods for the production of 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA from a carbon source. The method provides for engineered microorganisms that express endogenous and/or exogenous nucleic acid molecules that catalyze the conversion of a carbon source into 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA. The disclosure further provides methods of producing polymers derived from 4-HMF, 2,4-furandimethanol, furan-2,4-dicarbaldehyde, 4-(hydroxymethyl)furoic acid, 2-formylfuran-4-carboxylate, 4-formylfuran-2-carboxylate, and/or 2,4-FDCA.
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公开(公告)号：US10704204B2
公开(公告)日：2020-07-07
申请号：US15525693
申请日：2015-11-11
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luis Goudene Spada , Claudio Pereira da Silva Zamith , Walter Vidon Junior , Renato Teixeira Vargas
IPC分类号： E01B3/46 , B29C48/21 , B29C48/03 , B29C48/88 , E01B3/44 , B29C48/00 , B29K23/00 , B29K509/08
摘要： The present invention describes a railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network, comprising a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by comprising a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). The present invention further describes an embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper.
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公开(公告)号：US20190382566A1
公开(公告)日：2019-12-19
申请号：US16440682
申请日：2019-06-13
申请人： Braskem S.A.
摘要： Compositions may include a polymer composition prepared from an ethylene vinyl acetate copolymer, a rubber, and a plasticizer. Compositions may further comprise other components, such as a curing agent and a blowing agent. Articles may include a polymer composition prepared from an ethylene vinyl acetate copolymer, a rubber, and a plasticizer. Methods may include mixing an ethylene vinyl acetate copolymer, a rubber, and a plasticizer; and extruding the mixture thereof.
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公开(公告)号：US20190315949A1
公开(公告)日：2019-10-17
申请号：US16385918
申请日：2019-04-16
申请人： Braskem S.A.
发明人： Giancarlos Delevati , Mauro Alfredo Soto Oviedo , Fernanda Munhoz Anderle , Omar Wandir Renck , José Augusto Esteves Viveiro
IPC分类号： C08L23/08
摘要： A polymer composition may include an elastomeric ethylene-vinyl acetate, in which at least a portion of ethylene from the elastomeric ethylene-vinyl acetate is obtained from a renewable source of carbon. A curable polymer composition, an expandable polymer composition, articles, cured articles, and expanded articles may include or be formed from such polymer composition. A process for producing a polymer composition may include polymerizing ethylene at least partially obtained from a renewable source of carbon with vinyl acetate to produce an ethylene vinyl acetate copolymer; and mixing the ethylene-vinyl acetate copolymer with an elastomeric polyolefin to produce an elastomeric ethylene-vinyl acetate.
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公开(公告)号：US20190309266A1
公开(公告)日：2019-10-10
申请号：US16378209
申请日：2019-04-08
申请人： Braskem S.A.
发明人： Verônica Leite QUEIROZ , Lucas Pedersen PARIZZI , Iuri Estrada GOUVEA , Debora Noma OKAMOTO , Rafael Victório Carvalho GUIDO , Alessandro Silva NASCIMENTO , Igor POLIKARPOV
摘要： The present disclosure relates to biological processes and systems for the production of isopropanol and/or acetone utilizing modified alcohol dehydrogenases that exhibit increased activity with NADH as a cofactor. The disclosure further relates to polynucleotides and polypeptides of the modified alcohol dehydrogenases, and host cells containing the polynucleotides and expressing the polypeptides.
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