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公开(公告)号：US12006426B2
公开(公告)日：2024-06-11
申请号：US17273700
申请日：2019-09-09
申请人： BOREALIS AG
IPC分类号： C08F210/16 , C08J5/18 , C08L23/14 , C08L23/30 , C09K3/10 , C08F210/06
CPC分类号： C08L23/142 , C08F210/16 , C08J5/18 , C09K3/10 , C08F210/06 , C08F2500/12 , C08F2810/10 , C08J2323/14 , C08J2423/14 , C08L23/30 , C08L2203/162 , C08L2205/025 , C09K2003/1084 , C09K2200/0617
摘要： The present invention is directed to a polypropylene composition (P) comprising a bimodal copolymer of propylene and 1-hexene prepared in the presence of a metallocene catalyst, said bimodal copolymer having a melt flow rate MFR2 in the range of 4.0 to 20.0 g/10 min. Further, the present invention is directed to a method for preparing the copolymer (C) and an article comprising said polypropylene composition (P).
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公开(公告)号：US11905344B2
公开(公告)日：2024-02-20
申请号：US16972706
申请日：2019-06-11
CPC分类号： C08F10/06 , C08K5/14 , C08F2810/10
摘要： The disclosure relates to a method for producing a propylene copolymer, comprising extruding a molten propylene copolymer and a composition essentially comprising at least one peroxydicarbonate and at least one organic peroxide. Extruding is performed by extruding the propylene copolymer, adding the composition to the propylene copolymer, and melt extruding the propylene copolymer in the presence of the composition.
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公开(公告)号：US11780939B2
公开(公告)日：2023-10-10
申请号：US16795790
申请日：2020-02-20
发明人： Michael McLeod , Russell McDonald , Joseph Shuler , Mahesh Patkar , Marc Mayhall
摘要： A process forming a high MFR polypropylene includes providing a reactor powder polypropylene, the reactor powder polypropylene having a melt flow rate of less than 100 dg/min. The process also includes mixing the reactor powder polypropylene with a free-radical initiator to form a powder/initiator mixture and subjecting the powder/initiator mixture to post-reactor forming. The present disclosure further provides for a vis-broken polypropylene and a polymer article.
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公开(公告)号：US20180072828A1
公开(公告)日：2018-03-15
申请号：US15558955
申请日：2016-03-30
发明人： Satoshi TAMURA , Masashi HIGUCHI
CPC分类号： C08F110/06 , B29C55/005 , B29C55/14 , B29C55/16 , B29K2023/12 , B29K2995/0016 , B29L2031/3406 , C08F2810/10 , C08L23/12 , H01G4/18 , H01G4/33
摘要： Provided is a polypropylene resin composition which is good in extrusion property, which is good in appearance and low in variation in thickness when formed into a film, which is well-balanced in dynamic characteristics, and which has high heat resistance. A polypropylene resin composition satisfying the following requirements (1) to (3): (1) a melt flow rate (MFR) measured under a load of 2.16 kg at 230° C. according to ASTM D1238 is 1 to 10 g/10 min; (2) a pentad isotactic fraction measured using 13C-NMR is 0.930 or more; and (3) Mz is 600000 to 1400000, and Mw/Mn is 6.5 to 14.0.
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5.发明申请公开(公告)号：US20170320975A1
公开(公告)日：2017-11-09
申请号：US15533755
申请日：2015-12-14
申请人： BOREALIS AG
IPC分类号： C08F8/50 , C08K5/14 , D01D1/02 , C08K5/3435
CPC分类号： C08F8/50 , C08F2810/10 , C08K5/14 , C08K5/3435 , D01D1/02 , D10B2321/022 , C08L23/10 , C08F110/06 , C08F2500/08 , C08F2500/12
摘要： Synergistic visbreaking composition of peroxide and a hydroxylamine ester for increasing the visbreaking efficiency for polypropylene polymers at melt extrusion temperatures below 250° C. and its use in visbreaking polypropylene. The present invention is furthermore related to the use of such visbroken polypropylene polymers for producing melt blown non-wovens with improved barrier properties.
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6.发明申请公开(公告)号：US20170313865A1
公开(公告)日：2017-11-02
申请号：US15521146
申请日：2015-10-16
申请人： Borealis AG
发明人： Jingbo WANG , Pauli LESKINEN , Johanna LILJA , Markus GAHLEITNER , Juliane BRAUN
IPC分类号： C08L23/12
CPC分类号： C08L23/12 , C08F8/50 , C08F2810/10 , C08K5/0083 , C08L23/16 , C08L2205/02 , C08L2205/06 , C08L2205/24 , C08L2207/02 , C08L2207/10 , C08L2308/00 , C08L2314/02 , C08F210/06 , C08F2/001 , C08F4/651 , C08F210/16 , C08F2500/12 , C08F2500/15 , C08F2500/17
摘要： Heterophasic polypropylene composition with high flowability and stiffness in combination with good impact performance and its use.
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公开(公告)号：US20170051118A1
公开(公告)日：2017-02-23
申请号：US14832350
申请日：2015-08-21
发明人： Michael McLeod , Douglas Burmaster
IPC分类号： C08J5/00 , C08F110/06 , C08J3/24
CPC分类号： C08F110/06 , C08F8/50 , C08F2810/10 , C08J2323/26 , C08K5/14 , C08K5/159 , C08L23/10 , C08F10/06
摘要： A process including vis-breaking of polypropylene in the presence of 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxonane to obtain vis-broken polypropylene is provided. The vis-broken polypropylene may be pelletized to obtain pellets. A ratio of a melt flow rate (MI2) of the pellets to a melt flow rate (MI2) of the polypropylene prior to the vis-breaking may be greater than 1:1 and at most 4:1. The pellets may be used to form articles.
摘要翻译： 提供了一种包括在3,6,9-三乙基-3,6,9-三甲基-1,4,7-三过氧苯甲酸存在下的聚丙烯的断裂以获得可折断的聚丙烯的方法。 可以将可见光聚丙烯造粒以获得颗粒。 颗粒之间的熔体流动速率（MI2）与破坏前的聚丙烯的熔体流动速率（MI2）之比可以大于1:1，最多为4:1。 颗粒可用于形成制品。
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公开(公告)号：US20160280812A1
公开(公告)日：2016-09-29
申请号：US15035649
申请日：2014-11-14
IPC分类号： C08F10/06
CPC分类号： C08F10/06 , C08F2/34 , C08F2400/00 , C08F2500/03 , C08F2810/00 , C08F2810/10 , C08F110/06 , C08F4/6465 , C08F4/6494 , C08F2500/01 , C08F2500/12 , C08F2500/18
摘要： The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72° C. to less than or equal to 85° C., and forming a propylene-based polymer having a molecular weight (Mw) greater than 100,000, and a Mz+1/Mz less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications.
摘要翻译： 本公开内容提供了一种生产基于丙烯的聚合物的方法。 该方法包括在气相聚合反应器中的聚合条件下使丙烯单体和任选的一种或多种共聚单体与齐格勒 - 纳塔催化剂组合物接触。 该方法包括将反应器的反应区的温度保持在大于72℃至小于或等于85℃的温度，并形成分子量（Mw）大于 100,000，Mz + 1 / Mz小于2.20。 得到的丙烯类聚合物在纤维应用中是有利的。
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9.发明授权Fluoropolymer resin treatment employing melt extrusion and exposure to oxygen source to reduce discoloration 有权使用熔融挤出和暴露于氧源的含氟聚合物树脂处理以减少变色公开(公告)号：US09175110B2
公开(公告)日：2015-11-03
申请号：US13875338
申请日：2013-05-02
IPC分类号： C08F114/26 , C08F114/18 , C08F8/06 , C08F214/26 , C08F6/00 , C08F6/28 , C08F14/26 , C08F6/22 , B29C47/00 , B29K27/18 , B29C47/10
CPC分类号： C08F8/06 , B29C47/0004 , B29C47/0021 , B29C47/1072 , B29C47/38 , B29C47/527 , B29C47/6056 , B29C47/6087 , B29C47/64 , B29C47/76 , B29C47/92 , B29K2027/18 , C08F6/006 , C08F6/22 , C08F6/28 , C08F14/26 , C08F214/262 , C08F2800/20 , C08F2810/10 , C08F2/26 , C08F2/30 , C08F214/26 , C08F214/28 , C08F216/1408 , C08L27/18
摘要： Process for reducing thermally induced discoloration of melt-processible fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin. The process comprises melt extruding said fluoropolymer resin to produce molten fluoropolymer resin; and exposing said molten fluoropolymer resin to an oxygen source during said melt extruding.
摘要翻译： 降低通过在含水介质中聚合含氟单体而形成的可熔融加工的含氟聚合物的热诱导变色的方法，以形成含氟聚合物含水分散体，并从所述含水介质中分离所述含氟聚合物以获得所述含氟聚合物树脂。 该方法包括熔融挤出所述含氟聚合物树脂以产生熔融含氟聚合物树脂; 并在所述熔融挤出期间将所述熔融含氟聚合物树脂暴露于氧源。
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公开(公告)号：US09169336B2
公开(公告)日：2015-10-27
申请号：US13807099
申请日：2011-06-28
CPC分类号： C08F8/50 , C08F8/06 , C08F10/06 , C08F2810/10 , C08J5/18 , C08J2323/10 , C08K3/20 , C08K5/09 , C08L23/10 , C08L2205/02 , D01F6/06 , C08L2666/06 , C08F110/06 , C08F2500/12 , C08F2500/17 , C08L23/12
摘要： The invention relates to a process for increasing the melt flow index of a propylene polymer, the process comprising melt mixing the propylene polymer in the presence of aqueous hydrogen peroxide.
摘要翻译： 本发明涉及一种提高丙烯聚合物熔体流动指数的方法，该方法包括在过氧化氢水溶液存在下熔融混合丙烯聚合物。
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