公开(公告)号：US20220112365A1

公开(公告)日：2022-04-14

申请号：US17422365

申请日：2020-01-13

申请人： Braskem S.A.

发明人： Luiza Burns Barreto ,  Antonio Carlos Quental ,  Gerd Lohse

IPC分类号： C08L23/14 ,  C08J5/18 ,  B32B27/32 ,  B32B5/02 ,  B32B15/085 ,  B32B27/08 ,  B32B27/12 ,  B29C48/00 ,  B29C48/10

摘要： Heterophasic propylene copolymer compositions may include a polymer matrix of a random propylene copolymer and an elastomeric copolymer dispersed in the polymer matrix in an amount ranging from about 10 to 35 wt. %, relative to the weight of the composition. The random propylene copolymer may include one or more comonomers in an amount ranging from about 0.5 to 8.0 wt. % of the random propylene copolymer. The elastomeric copolymer may include propylene and one or more comonomers, where the one or more comonomers are present in an amount ranging from about 15 to 60 wt. % of the elastomeric copolymer. Films may be formed from heterophasic propylene copolymer compositions. Methods of preparing heterophasic propylene copolymer compositions may include performing a multistage polymerization.

公开(公告)号：US20220106454A1

公开(公告)日：2022-04-07

申请号：US17492385

申请日：2021-10-01

申请人： Braskem S.A.

发明人： Giancarlos Delevati ,  Robison Passos

IPC分类号： C08J9/00 ,  C08J9/06 ,  C08L23/08 ,  C08L7/00 ,  C08K5/00 ,  C08K5/14

摘要： A polymer composition may include at least one ethylene vinyl acetate (EVA) polymer; a blowing agent in an amount ranging from 2 to 18 phr; and a crosslinking agent in an amount ranging from 0.3 to 4 phr. A method includes expanding an EVA-based polymer composition to form a foam having a density ranging from 0.01 g/cm3 to 0.06 g/cm3 and a hardness ranging from 10 to 60 Shore 00.

公开(公告)号：US20220064682A1

公开(公告)日：2022-03-03

申请号：US17463988

申请日：2021-09-01

申请人： Braskem S.A.

发明人： Iuri Estrada GOUVEA ,  Ana Karina BRAMBILLA COSTA ,  Marcos Rogerio SIMOES ,  Veronica Leite QUEIROZ ,  Aline Silva ROMÃO DUMARESQ

IPC分类号： C12P17/04 ,  C12N1/16 ,  C12N15/81

摘要： The present disclosure provides recombinant microorganisms and methods for the anaerobic production of 2,4-furandimethanol from one or more carbon sources. The microorganisms and methods provide redox-balanced and ATP positive pathways for co-producing 2,4-furandimethanol with ethanol and for co-producing 2,4-furandimethanol with ethanol and acetone and/or isopropanol. The method provides recombinant microorganisms that express endogenous and/or exogenous nucleic acid molecules encoding polypeptides that catalyze the conversion of a carbon source into 2,4-furandimethanol and that couple the 2,4-furandimethanol pathway with an additional metabolic pathway. The present disclosure further provides enzymatic production of 2,4-furandicarboxylic acid.

公开(公告)号：US11260367B2

公开(公告)日：2022-03-01

申请号：US16217385

申请日：2018-12-12

申请人： Instituto Nacional de Tecnologia ,  Braskem S.A.

发明人： Marco Andre Fraga ,  Lucia Gorenstin Appel ,  Alexandre Barros Gaspar ,  Felipe Jorge Lima da Silveira ,  Andrea Maria Duarte de Farias ,  Clarissa Perdomo Rodrigues ,  Fabio Bellot Noronha ,  Roberto Werneck do Carmo ,  Andrea Marins de Oliveira ,  Luiza Roza

IPC分类号： B01J21/04 ,  B01J21/06 ,  B01J23/10 ,  B01J35/02 ,  C07C1/24 ,  B01J37/00 ,  B01J8/00 ,  C07C11/04

摘要： The present invention relates to a catalytic system for the preparation of light olefins through the dehydration of alcohols, including at least one catalyst and at least one co-catalyst, wherein the catalyst is selected from among catalysts for the catalytic dehydration of ethanol and with the co-catalyst selected from among oxy-ketonization reaction catalysts, wherein the catalyst:co-catalyst mass ratio is within a range of 0.5:0.125 to 2:10, and preferably within a range of 1:0.25 to 1:5.

公开(公告)号：US11254808B2

公开(公告)日：2022-02-22

申请号：US16416356

申请日：2019-05-20

申请人： Braskem S.A. ,  Universidade Federal do Rio de Janeiro

发明人： Alberto Cláudio Habert ,  Cristiano Piacsek Borges ,  Cristina Cardoso Pereira ,  Maria Elizabeth Ferreira Garcia ,  Jane Hitomi Fujiyama-Novak ,  Rafael Aislan Amaral ,  Bárbara Iria Silva Mano ,  Vinicius Galhard Grassi ,  Rogério Massanori Sakahara ,  Marcelo Farah ,  Mariele Kaipers Stocker ,  Marcos Roberto Paulino Bueno

IPC分类号： C08L23/06 ,  C08L23/08 ,  C08L29/00 ,  C08L51/06 ,  C08J3/00 ,  C08J3/24

摘要： Polymer compositions may include a polymer matrix containing a polyolefin, one or more polymer particles dispersed in the polymer matrix, wherein the one or more polymer particles include a polar polymer selectively crosslinked with a crosslinking agent, and wherein the one or more polymer particles has an average particle size of up to 200 μm. Processes of preparing a polymer composition may include mixing a polyolefin, a polar polymer, and a crosslinking agent; and selectively crosslinking the polar polymer with the crosslinking agent in the presence of the polyolefin. Methods may include increasing stress cracking resistance of a polyolefin by mixing a polar polymer with the polyolefin; and selectively crosslinking the polar polymer in the presence of the polyolefin with a crosslinking agent to form crosslinked polar polymer particles dispersed in the polyolefin.

公开(公告)号：US11046835B2

公开(公告)日：2021-06-29

申请号：US15702124

申请日：2017-09-12

申请人： Braskem S.A. ,  Universidade Federal do Rio Grande do Sul

发明人： Márcia Pires Fortes Ferreira ,  Leonardo Batista Ito ,  Luciane França De Oliveira ,  João Henrique Zimnoch dos Santos ,  Viviane Dalmoro

IPC分类号： C08K9/10 ,  C08K9/06 ,  C08K5/00 ,  G01N21/78 ,  C08L23/08 ,  C08K3/36 ,  C08K5/29 ,  C08K5/42 ,  C08L23/06 ,  G01N31/22

摘要： Polymeric compositions may include one or more adjunct polymers selected from a group of an ionomer and a polar polymer; and an intelligent additive, wherein when exposed to the external stimuli, the intelligent additive triggers a color change in the polymeric composition. Polymer compositions may include a nonpolar matrix polymer; one or more adjuncts selected from the group of an ionomer, a polar polymer, a metal salt, or combinations thereof. Polymer compositions may also include an intelligent additive, wherein when exposed to the external stimuli, the intelligent additive triggers a color change in the polymeric composition, wherein after at least 17 hours of exposure to the external stimuli, the polymer composition exhibits a ΔE of at least 8 or more, maintaining the ΔE of at least 8 or more for at least 5 days after the exposure to external stimulus is ceased.

公开(公告)号：US20210190742A1

公开(公告)日：2021-06-24

申请号：US16721237

申请日：2019-12-19

申请人： Braskem S.A.

发明人： Murilo Lauer Sanson ,  Mariele Kaipers Stocker ,  Rodrigo Brambilla ,  Arthur Alaim Bernardes ,  Marcia Pires Fortes Ferreira ,  Leonardo Batista Ito

IPC分类号： G01N31/22 ,  C08K9/10 ,  B33Y70/10 ,  B65D65/40

摘要： Packaging materials may include a packaging material formed from an intelligent polymer composition, wherein the intelligent polymer composition includes a matrix polymer and an indicator, wherein the indicator triggers a color change in the intelligent polymeric composition when exposed to an external stimulus, and wherein the intelligent polymer composition is configured to contact a material enclosed within the packaging material. Methods may include forming a packaging material from an intelligent polymer composition, wherein the intelligent polymer composition includes a matrix polymer and an indicator, wherein the indicator triggers a color change in the intelligent polymeric composition when exposed to an external stimulus, and wherein the intelligent polymer composition is configured to contact a material enclosed within the packaging material.

公开(公告)号：US20210139681A1

公开(公告)日：2021-05-13

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 ,  C08L23/14 ,  C08L23/12 ,  C08L83/04

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：US20210060828A1

公开(公告)日：2021-03-04

申请号：US16957775

申请日：2017-12-26

申请人： Braskem S.A.

发明人： Eliomar Ricardo PIMENTA

IPC分类号： B29C41/00 ,  B29C41/04 ,  C08L23/06 ,  C08L23/08

摘要： The present invention relates to a composition for application in rotomolding processes comprising a blend of linear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 1 to 4 g/10 min; high density polyethylene (HDPE) in concentrations from 20 to 40% by weight and melt flow index from 5 to 9 g/10 min; low density polyethylene (LDPE) in concentrations from 0 to 20% by weight and melt flow index from 6 to 10 g/10 min; and linear low density polyethylene (LLDPE) in concentrations from 20 to 40% by weight and melt flow index from 3 to 7 g/10 min. A composition comprising feedstock of renewable origin, as well as its use is also disclosed.

公开(公告)号：US20200283811A1

公开(公告)日：2020-09-10

申请号：US16796426

申请日：2020-02-20

申请人： Braskem S.A.

发明人： Daniel Johannes KOCH ,  Lucas Pederson PARIZZI ,  Felipe GALZERANI ,  Jean Marie FRANCOIS ,  Sophie LAJUS

IPC分类号： C12P17/18 ,  C12P17/02 ,  C12N15/52 ,  C12N1/20 ,  C12P7/28 ,  C12P5/02

摘要： The present application relates to recombinant microorganisms useful in the biosynthesis of monoethylene glycol (MEG) or glycolic acid (GA), or MEG and one or more co-product, from one or more pentose and/or hexose sugars. Also provided are methods of producing MEG (or GA), or MEG (or GA) and one or more co-product, from one or more pentose and/or hexose sugars using the recombinant microorganisms, as well as compositions comprising the recombinant microorganisms and/or the products MEG (or GA), or MEG and one or more co-product.