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1.发明授权公开(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
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.
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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.
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公开(公告)号：US20190136006A1
公开(公告)日：2019-05-09
申请号：US16180978
申请日：2018-11-05
申请人： Braskem S.A.
发明人： Ana Paula Rodrigues Camilo , Giancarlos Delevati , Gislene Zehetmeyer , Mauro Alfredo Soto Oviedo
摘要： Foamed compositions that include: one or more foamable polymers; one or more ionomeric additives; and wherein the foam composition exhibits shrinkage as determined at 70° C.*1 h according to the PFI method between 0.1 and 3.5%. Methods may include preparing a polymer composition by combining one or more foamable polymers and one or more ionomeric additives in a mixer to produce the polymer composition; and foaming the polymer composition to generate a polymer foam exhibiting shrinkage as determined at 70° C.*1 h according to the PFI method of between 0.1 and 3.5%.
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公开(公告)号：US11472950B2
公开(公告)日：2022-10-18
申请号：US16472481
申请日：2017-12-21
申请人： Braskem S.A.
发明人： Ana Paula Rodrigues Camilo , Camilo Delfino , Gislene Zehetmeyer , Giancarlos Delevati , Mauro Alfredo Soto Oviedo
IPC分类号： C08L29/14 , C08L23/08 , C08F18/14 , C08F212/08 , C08F220/34 , C08K3/36 , C08K5/14 , C09J123/08 , C08K3/30
摘要： Compositions may include an EVA copolymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety. Methods may include preparing a polymer composition by adding ethylene, vinyl acetate and one or more polar comonomers to a reactor or extruder, wherein at least one of the one or more polar comonomers include an amine moiety; and reacting the ethylene, vinyl acetate and one or more comonomers to produce the polymer composition. Compositions may include an adhesive film composition that include at least one layer including a polymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety.
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公开(公告)号：US11015035B2
公开(公告)日：2021-05-25
申请号：US16180978
申请日：2018-11-05
申请人： Braskem S.A.
发明人： Ana Paula Rodrigues Camilo , Giancarlos Delevati , Gislene Zehetmeyer , Mauro Alfredo Soto Oviedo
摘要： Foamed compositions that include: one or more foamable polymers; one or more ionomeric additives; and wherein the foam composition exhibits shrinkage as determined at 70° C.*1 h according to the PFI method between 0.1 and 3.5%. Methods may include preparing a polymer composition by combining one or more foamable polymers and one or more ionomeric additives in a mixer to produce the polymer composition; and foaming the polymer composition to generate a polymer foam exhibiting shrinkage as determined at 70° C.*1 h according to the PFI method of between 0.1 and 3.5%.
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公开(公告)号：US20210108039A1
公开(公告)日：2021-04-15
申请号：US17071826
申请日：2020-10-15
申请人： Braskem S.A.
发明人： Giancarlos Delevati , Omar Wandir Renck , Carlos Augusto Maia Faria , Paulo Lourenço Brito Herrmann , Marcial Cesar Vieira , Patricia Mara de Freitas Rocha , Marcelo Fioravanti das Neves , Roger Ribeiro Malmegrim
IPC分类号： C08J5/18 , C08F210/02 , C08L23/08 , C08L23/06 , B32B27/08 , B32B27/32 , B32B27/30 , B29C48/00 , B29C48/08
摘要： A polymer may include a copolymer of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238.
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公开(公告)号：US11746197B2
公开(公告)日：2023-09-05
申请号：US17071826
申请日：2020-10-15
申请人： Braskem S.A.
发明人： Giancarlos Delevati , Omar Wandir Renck , Carlos Augusto Maia Faria , Paulo Lourenço Brito Herrmann , Marcial Cesar Vieira , Patricia Mara De Freitas Rocha , Marcelo Fioravanti das Neves , Roger Ribeiro Malmegrim
IPC分类号： B32B27/30 , C08J5/18 , B29C48/00 , B29C48/08 , B32B27/08 , B32B27/32 , C08F210/02 , C08L23/06 , C08L23/08 , B29K23/00 , B29L7/00
CPC分类号： C08J5/18 , B29C48/022 , B29C48/08 , B32B27/08 , B32B27/306 , B32B27/32 , C08F210/02 , C08L23/06 , C08L23/0853 , B29K2023/083 , B29L2007/008 , B32B2250/05 , B32B2270/00 , C08J2323/06 , C08J2323/08 , C08J2423/06 , C08J2423/08 , C08L2205/025 , C08L2205/035 , C08L2207/062 , C08L2207/066
摘要： A polymer may include a copolymer of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238.
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公开(公告)号：US20220213357A1
公开(公告)日：2022-07-07
申请号：US17612079
申请日：2020-05-20
申请人： Braskem S.A.
发明人： Giancarlos Delevati
摘要： A hot melt adhesive composition may include a biobased ethylene vinyl acetate (EVA) copolymer comprising a biobased carbon content as determined by ASTM D6866-18 Method B of 5% to 95%. A hot melt adhesive composition may also include a biobased ethylene vinyl acetate (EVA) copolymer at an amount ranging from 10 to 80 wt % of the hot melt adhesive composition, wherein the biobased EVA comprises a melt index (I2) as determined by ASTM D1238 in the range of 1.5 to 50 g/10 min measured with a load of 2.16 kg at 190° C.; and a tackfier at an amount ranging from 30 to 70 wt % of the hot melt adhesive composition.
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公开(公告)号：US20220106472A1
公开(公告)日：2022-04-07
申请号：US17496123
申请日：2021-10-07
申请人： Braskem S.A.
摘要： A polymer composition may include one or more ethylene-vinyl acetate (EVA) copolymers in an amount ranging from 65 to 95 wt %; and an elastomer in an amount ranging from 5 to 35 wt %. Articles prepared from such polymer composition may include shoe soles, midsoles, outsoles, unisoles, insoles, monobloc sandals, flip flops, full EVA footwear, or sportive articles.
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公开(公告)号：US20200263059A1
公开(公告)日：2020-08-20
申请号：US16791788
申请日：2020-02-14
申请人： Braskem S.A.
发明人： Giancarlos Delevati
IPC分类号： C09J7/35 , C09J123/08 , C09J131/04
摘要： Hot melt adhesive film compositions may include a biobased ethylene vinyl acetate (EVA) copolymer containing a biobased carbon content as determined by ASTM D6866 of 5% to 95%; and a melt index (I2) as determined by ASTM D1238 in the range of 1.5 g/10 min to 50 g/10 min measured with a load of 2.16 kg at 190° C. Methods may include a process for bonding a substrate to a similar or dissimilar substrate that includes applying to at least one substrate a hot melt adhesive film composition and bonding said substrate together, said hot melt adhesive film composition containing a biobased ethylene vinyl acetate copolymer.
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