公开(公告)号：US20220332946A1

公开(公告)日：2022-10-20

申请号：US17715709

申请日：2022-04-07

申请人： Braskem S.A.

发明人： Kevin Herrington ,  Nei Sebastião Domingues Junior ,  Hadi Mohammadi

IPC分类号： C08L75/06 ,  C08L75/08 ,  C08J9/00

摘要： A polymer composition may include a polymer produced from ethylene, one or more branched vinyl ester monomers, optionally vinyl acetate (VA), and a thermoplastic polyurethane (TPU). A method of preparing a polymer composition may include blending a thermoplastic polyurethane (TPU) and an ethylene based polymer produced from ethylene, one or more branched vinyl ester monomers, and optionally vinyl acetate (VA); and to form a blended mixture; and extruding the blended mixture to form the polymer composition

公开(公告)号：US20220325019A1

公开(公告)日：2022-10-13

申请号：US17715678

申请日：2022-04-07

申请人： Braskem S.A.

发明人： Jorge Manuel Jardim da Silva ,  Hadi Mohammadi ,  Kevin Herrington ,  Manoela Ellwanger Cangussu ,  Nei Sebastião Domingues Junior ,  Adriane Gomes Simanke

IPC分类号： C08F218/10 ,  C08F2/38

摘要： A method of controlling long chain branching in an ethylene-based polymer includes polymerizing ethylene with one or more optional monomers to form an ethylene-based polymer, and controlling a degree of long chain branching (LCB) in the ethylene-based polymer. The degree of LCB ranges from 0.1 per 1000 carbon atoms in the polymer backbone to 10 per 1000 carbon atoms in the polymer backbone, as measured by 13CNMR. The degree of LCB is controlled by adding one or more branched vinyl ester to the polymerizing step in an amount ranging from 0.01 mol % to 5.0 mol %, relative to total monomer content. A polymer composition contains the ethylene-based polymer. An article includes the polymer composition containing the ethylene-based polymer.

公开(公告)号：US11453766B2

公开(公告)日：2022-09-27

申请号：US16682869

申请日：2019-11-13

申请人： Braskem S.A.

发明人： Giancarlos Delevati

IPC分类号： C08L23/08 ,  C08L23/12 ,  C08L23/14 ,  C08L83/04 ,  C08K5/00

摘要： Blended polymer compositions and methods of making the same include an elastomeric EVA composition in an amount ranging from about 46 to 70 wt % of the polymer composition; and a polypropylene in an amount ranging from about 20 to 40 wt % of the polymer composition. Methods include mixing an elastomeric EVA composition with polypropylene, and extruding the mixture of elastomeric EVA composition and polypropylene.

公开(公告)号：US20220298535A1

公开(公告)日：2022-09-22

申请号：US17750293

申请日：2022-05-20

申请人： Braskem S.A.

发明人： Paulo Moises Raduan ALEXANDRINO ,  Iuri Estrada GOUVEA ,  Veronica Leite QUEIROZ

IPC分类号： C12P17/04 ,  C07D307/68 ,  C12N9/88 ,  C12N9/04 ,  C12N9/02 ,  C12N9/08 ,  C12N9/16

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.

公开(公告)号：US20220267488A1

公开(公告)日：2022-08-25

申请号：US17628042

申请日：2020-07-16

申请人： Braskem S.A. ,  SERVIÇO NACIONAL DE APRENDIZAGEM INDUSTRIAL DEPARTAMENTO REGIONAL DO RIO GRANDE DO SUL.

发明人： Leonardo Souza Bento ,  Augusto Cesar Esteves ,  André Luís dos Santos da Silva ,  Marcelo Farah

IPC分类号： C08F210/02 ,  B29C49/00 ,  B29C49/12 ,  B29C49/06

摘要： A polyethylene-based resin composition for injection stretch blow molding may include a copolymer of ethylene and one or more C4-C8 α-olefins. The composition may have a density, according to ASTM D792, that ranges from about 0.946 to 0.960 g/cm3 and a melt index (15), as measured according to ASTM D 1238 at 190° C. under a 5.0 kg load, ranging from about 5.0 to 50 g/10 min. A method of producing an article may include injection molding the composition to give a preform; and stretch-blowing the preform to provide the article.

公开(公告)号：US11384369B2

公开(公告)日：2022-07-12

申请号：US16791556

申请日：2020-02-14

申请人： Braskem S.A.

发明人： Daniel Johannes Koch ,  Felipe Galzerani ,  Paulo Moises Raduan Alexandrino

IPC分类号： C12N9/88 ,  C12N9/90 ,  C12N1/20 ,  C12P7/42 ,  C12P13/00 ,  C12N9/00 ,  C12P13/04

摘要： The present invention provides biochemical pathways, glyoxylate producing recombinant microorganisms, and methods for the production and yield improvement of glycolic acid and/or glycine via a reverse glyoxylate shunt. The reverse glyoxylate shunt comprises an enzyme that catalyzes the carboxylation of phosphoenol pyruvate (PEP) to oxaloacetate (OAA), or an enzyme that catalyzes the carboxylation of pyruvate to oxaloacetate (OAA) or an enzyme that catalyzes the carboxylation of pyruvate to malate or a combination of any of the previous reactions; an enzyme that catalyzes the conversion of malate to malyl-CoA; an enzyme that catalyzes the conversion of malyl-CoA to glyoxylate and acetyl-CoA; and optionally an enzyme that catalyzes the conversion of oxaloacetate (OAA) to malate. Glyoxylate is reduced to produce glycolate. Alternatively, glyoxylate is converted to glycine. The reverse glyoxylate shunt pathway of the present invention can be utilized synergistically with other glycolic acid and/or glycine producing pathways to increase product yield.

公开(公告)号：US20220185922A1

公开(公告)日：2022-06-16

申请号：US17688527

申请日：2022-03-07

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： C08F210/02 ,  C08F218/08 ,  C08J9/10 ,  C12P7/10 ,  C07C1/24 ,  C07C29/74

摘要： A copolymer may include ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon. Embodiments may also be directed to curable polymer compositions, expandable polymer compositions, articles, cured articles, and expanded articles formed from or including such copolymers of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon. A process for producing an ethylene vinyl acetate copolymer may include fermenting a renewable source of carbon to produce ethanol; dehydrating the ethanol, wherein the ethanol is dehydrated to produce ethylene; and polymerizing ethylene and vinyl acetate to produce the ethylene vinyl acetate copolymer.

公开(公告)号：US20220169840A1

公开(公告)日：2022-06-02

申请号：US17537090

申请日：2021-11-29

申请人： Braskem S.A.

发明人： Camila Pilatti Mainka ,  Amel Murgic ,  Thaysa Pando ,  Cristhian Oliveira

IPC分类号： C08L23/06 ,  B29C49/00 ,  B29C49/04 ,  B29D22/00 ,  C12P7/06 ,  A61J1/06

摘要： A biobased polymer composition for pharmaceutical articles includes a low density polyethylene, in which at least a portion of ethylene is obtained from a renewable source of carbon. The biobased polymer composition exhibits an Emission Factor ranging from −3.5 to 0 kg CO2e/kg of the biobased polymer composition, and is biocompatible for use in pharmaceutical packaging. A pharmaceutical article includes the biobased polymer composition and has a volume ranging from 0.04 ml to 10000 ml. A method for forming a pharmaceutical article includes extruding the biobased polymer composition at a temperature ranging from 100 to 250° C. and at a screw speed ranging from 20 to 100 rpm. A method for producing a biobased polymer composition includes polymerizing ethylene at least partially obtained from a renewable source of carbon to form a low density polyethylene.

公开(公告)号：US20220056280A1

公开(公告)日：2022-02-24

申请号：US17409505

申请日：2021-08-23

申请人： Braskem S.A.

发明人： Alexandre da Luz ,  Juliana Breda Soares ,  Dillan Passos Bernardes

IPC分类号： C09D5/03 ,  C09D123/12 ,  C09D123/06 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/00

摘要： A method of manufacturing an article using a powder bed fusion technique including depositing a first layer of a dry blend mixture on to a target surface, the dry blend mixture comprising a thermoplastic polymer powder and a stearate additive in a range of 2,000 ppm to 20,000 ppm; directing energy to the first layer of the dry blend mixture so as to melt and sinter at least portion of the first layer of the dry blend mixture; and successively depositing layers of the dry blend mixture and directing energy to the deposited layers so as to melt and sinter at least a portion of the successive layers to a prior layer to perform a layer-by-layer process until a three-dimensional structure is obtained.

公开(公告)号：US11186721B2

公开(公告)日：2021-11-30

申请号：US15540513

申请日：2014-12-29

申请人： Braskem S.A.

发明人： Dihogenes Adriano Pozzer ,  Olavo Martins Junior ,  Alessandra Coelho Silva Lucas ,  Fernando Silveira

IPC分类号： C09C1/42 ,  C08K3/013 ,  C08K9/04 ,  C09C1/44 ,  B82Y30/00 ,  B82Y40/00 ,  C04B33/04

摘要： A process for treatment of nanoparticles of mineral filler for obtaining processed nanoparticles for use in polymerization in the presence of nanoparticles which includes the steps of (a) drying a mineral filler with an inert gas to remove catalyst poisons; (b) mixing the mineral filler dried obtained in step (a) with a swelling agent in a liquid state or near a critical state or in the supercritical state; (c) subjecting the swelling agent of the mixture obtained in step (b) to an endoenthalpic or isoentalphic phase change by altering the conditions of the temperature and/or pressure; (d) subjecting the nanoparticles of the mixture obtained in step (c) to contact of scavenging agent to react with catalyst poisons; then the mixture obtained in step (d) can be dried in a step (e) with an inert gas to remove sub-products from scavenging agent and catalyst poisons to obtain the treated nanoparticles.