公开(公告)号：US11866522B2

公开(公告)日：2024-01-09

申请号：US16728772

申请日：2019-12-27

申请人： Braskem S.A.

发明人： Olavo Martins Junior ,  Dihogenes Adriano Pozzer ,  Élita Cavalli

IPC分类号： C08F4/654 ,  C08F10/06 ,  C08F2/02 ,  B01J4/00 ,  B01J19/18

CPC分类号： C08F10/06 ,  B01J4/001 ,  B01J19/18 ,  C08F2/02 ,  C08F4/654 ,  B01J2204/002

摘要： Methods of adding a catalyst to a bulk polymerization process may include mixing the catalyst with propylene to form a catalyst mixture that is substantially free of any C20 or greater hydrocarbons, feeding the catalyst mixture into a polymerization reactor, activating the catalyst mixture; and performing a polymerization on the catalyst mixture in the polymerization reactor. Polymers may be formed by polymerization processes that are substantially free of any C20 or greater hydrocarbons.

公开(公告)号：US11780979B2

公开(公告)日：2023-10-10

申请号：US17018790

申请日：2020-09-11

申请人： Braskem S.A.

发明人： Giancarlos Delevati

IPC分类号： C08J9/10 ,  C08K3/22 ,  C08J9/00 ,  C08K5/14

CPC分类号： C08J9/0061 ,  C08J9/103 ,  C08K3/22 ,  C08K5/14 ,  C08J2307/00 ,  C08J2331/04 ,  C08J2423/08 ,  C08J2431/04 ,  C08J2483/04 ,  C08K2003/2296

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.

公开(公告)号：US20230167208A1

公开(公告)日：2023-06-01

申请号：US18070124

申请日：2022-11-28

申请人： Braskem S.A.

发明人： Jiahan Xie ,  Márcia Silva Lacerda Miranda ,  Cassandra Gallaschun ,  Marcio Andrade ,  Danniel Panza ,  Marcio Reboucas ,  Richard Caulkins ,  Alicia Brasselle ,  Jan Kalfus

IPC分类号： C08F110/10

CPC分类号： C08F110/10

摘要： A heterogeneous catalyst composition for preparing a highly-reactive polyisobutylene from isobutylene may include a Lewis acid, a support, an initiator, and optionally an electron donor. A method of polymerizing isobutylene to a highly-reactive polyisobutylene may include a heterogeneous catalyst composition including include a Lewis acid, a support, an initiator, and optionally an electron donor.

公开(公告)号：US11661506B2

公开(公告)日：2023-05-30

申请号：US17872890

申请日：2022-07-25

申请人： Braskem S.A.

发明人： Moisés Magalhães Werlang ,  Joel Carr ,  Tadeu Forest

IPC分类号： C08L23/16 ,  C08L23/12 ,  C08L23/14 ,  C08L23/26

CPC分类号： C08L23/12 ,  C08L23/14 ,  C08F2500/12 ,  C08F2500/27 ,  C08F2800/20 ,  C08F2810/10 ,  C08L23/16 ,  C08L2023/42 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/31 ,  C08F2500/35

摘要： Polymer compositions may include a matrix phase comprising a polypropylene-based polymer; and an elastomeric rubber phase; wherein the polymer composition has melt flow rate (MFR) according to ASTM D1238 at 230° C./2.16 kg equal to or greater than 90 g/10 min and at least one feature selected from (I) an Izod impact resistance according to ASTM D256A at 23° C. equal to or greater than 400 J/m; (II) an instrumented drop impact at −30° C., average total energy, equal to or greater than 17 J; or (III) an instrumented drop impact at −30° C., average percent ductility, equal to or greater than 60%.

公开(公告)号：US11566269B2

公开(公告)日：2023-01-31

申请号：US17163838

申请日：2021-02-01

申请人： Braskem S.A.

发明人： Paulo Moises Raduan Alexandrino ,  Iuri Estrada Gouvea ,  Veronica Leite Queiroz ,  Marcos Rogerio Simões

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：US11530391B2

公开(公告)日：2022-12-20

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

IPC分类号： C12N9/04 ,  C12N15/30 ,  C12N15/53 ,  C12N15/52

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.

公开(公告)号：US20220306846A1

公开(公告)日：2022-09-29

申请号：US17839263

申请日：2022-06-13

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.

公开(公告)号：US20220243006A1

公开(公告)日：2022-08-04

申请号：US17586535

申请日：2022-01-27

申请人： Braskem S.A.

发明人： Felipe Cicaroni FERNANDES ,  Iuri Estrada GOUVEA ,  Bárbara MANO

IPC分类号： C08G63/183 ,  C08G63/40

摘要： The present disclosure provides a copolyester including a dicarboxylic acid component A comprising a terephthalic acid residue or ester-forming derivative thereof, or a mixture thereof, and a 2,4-furandicarboxylic acid residue or ester-forming derivative thereof, or a mixture thereof, and a diol component B comprising an alkanediol residue having from 2 to 22 carbon atoms, wherein the dicarboxylic acid component A has a total molar content, and wherein the 2,4-furandicarboxylic acid residue or ester-forming derivative thereof, is present in an amount of from 0.1 to 10 mol %, with respect to the total molar content of the dicarboxylic acid component A. Inventive copolyesters have a slower crystallization rate, a higher gas barrier to CO2 and O2 and a higher ratio of 14C to 12C as measured by ASTM D6866 when compared to a comparable copolyester comprising isophthalic acid instead of 2,4-furandicarboxylic acid.

公开(公告)号：US20220204744A1

公开(公告)日：2022-06-30

申请号：US17565002

申请日：2021-12-29

申请人： Braskem S.A.

发明人： Marcos Roberto Paulino Bueno

IPC分类号： C08L29/04 ,  C08K3/36 ,  C08K5/09 ,  C08J3/12

摘要： An anti-environmental stress cracking additive particle, wherein the particle may include an anti-environmental stress cracking active phase, a support phase, and a compatibilizing phase, and wherein the particles have an average size of up to 200 μm. Processes for preparing the anti-environmental stress cracking additive may include a solvent/non-solvent process, a free non-solvent process, and solid state methods. A polymer composition may include a matrix polymer and the anti-environmental stress cracking additive. An article may comprise the polymer composition comprising the anti-environmental stress cracking additive particle.

公开(公告)号：US20220195160A1

公开(公告)日：2022-06-23

申请号：US17556411

申请日：2021-12-20

申请人： Braskem S.A.

发明人： Murilo Lauer Sanson ,  Hadi Mohammadi ,  Juliani Cappra Da Silva ,  Nei Sebastião Domingues Junior

IPC分类号： C08L23/08 ,  C08K5/14 ,  C08K5/23 ,  C08K5/103 ,  C08K3/26 ,  C08K3/22 ,  C08J9/16 ,  C08J9/10 ,  C08J9/12 ,  A43B13/04

摘要： A polymer composition that includes a polymer produced from ethylene, one or more branched vinyl ester monomers, and optionally, vinyl acetate; optionally a secondary foamable polymer; a foaming agent, and a peroxide is provided. Methods for making such a polymer composition include blending a polymer composition from a mixture of a polymer produced from ethylene, one or more branched vinyl ester monomers, and optionally, vinyl acetate, optionally a secondary foamable polymer; a foaming agent, and a peroxide are provided.