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公开(公告)号：EP4435026A1
公开(公告)日：2024-09-25
申请号：EP22896030.8
申请日：2022-11-15
发明人： KIM, Younghwan , KANG, Kapku , KIM, Hyecheol , KIM, Dongjun , KIM, Sanggon , SON, Hojin , HA, Hyun Soo
IPC分类号： C08F297/08 , H01M50/417 , H01M50/494 , C08F293/00 , C08F4/659 , C08F4/646
CPC分类号： Y02P20/52 , Y02E60/10 , C08F4/646 , C08F4/659 , C08F293/00 , C08F297/08 , H01M50/417 , H01M50/494
摘要： The present invention relates to an (ultra)high molecular weight polyethylene-based block copolymer having (ultra)high molecular weight polyethylene as a first-stage polymer in a linear structure through multi-stage polymerization and having a viscosity average molecular weight of 400,000 to 5,000,000 g/mol under the conditions that hydrogen (H2) as a molecular weight regulator is added in a trace amount or not added, a producing method therefor, and a secondary battery separator produced using the same as a raw material. The present invention provides improved kneading property, film surface and other properties compared to a heterogeneous composite secondary battery separator made of polyethylene and polypropylene processed by simple blending.
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公开(公告)号：EP3940832A1
公开(公告)日：2022-01-19
申请号：EP20201254.8
申请日：2020-10-12
IPC分类号： H01M8/1044 , H01M8/1023 , H01M8/1069 , H01M8/1088 , H01M8/18 , H01M8/22 , H01M8/1018
摘要： According to an embodiment, there is provided a polymer electrolyte membrane, comprising a polymer film including a styrene-based resin, a polyolefin-based resin, and an olefin-based elastomer resin. The polymer film is bonded with a sulfonic acid group (-SO3H) capable of cation exchange through a sulfonation reaction.
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公开(公告)号：EP4435017A1
公开(公告)日：2024-09-25
申请号：EP22896029.0
申请日：2022-11-15
发明人： KIM, Younghwan , KANG, Kapku , YOO, Myeongyeol , HONG, Jinho , HA, Yunsun , PARK, Yoonhyun , SON, Hojin , HA, Hyun Soo
IPC分类号： C08F110/06 , C08F4/659 , C08F4/646
CPC分类号： Y02P20/52 , C08F110/06 , C08F4/646 , C08F4/659
摘要： The present invention relates to a method for producing an ultra-high molecular weight polypropylene having a viscosity average molecular weight of 1,000,000 g/mol or greater and a low inorganic content of 30 ppm or less. According to the method for producing an ultra-high molecular weight polypropylene of the above disclosure, there is the effect that the molecular weight control for producing an ultra-high molecular weight propylene can be achieved with an input ratio of a main catalyst, a co-catalyst and a promoter even if hydrogen used as a molecular weight regulator in general polymerization conditions is not added.
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公开(公告)号：EP3868797A1
公开(公告)日：2021-08-25
申请号：EP20166341.6
申请日：2020-03-27
发明人： JUNG, Yeon Jae , HA, Hyun Soo , KANG, Gil Soon , JEONG, Young Tae
IPC分类号： C08F210/06 , C08F4/655 , C08F2/06 , C08F2/14 , C08L95/00
摘要： According to an embodiment, a method for preparing an amorphous polypropylene copolymer comprises injecting a volume of hexane into a nitrogen-purged reactor, the volume of the hexane corresponding to 20% to 80% of a volume of the reactor, injecting, into the reactor, and mixing an amount of alkyl cocatalyst, the amount of the alkyl cocatalyst corresponding to 1 to 50 times a weight of a primary catalyst, injecting the primary catalyst into the reactor, stirring, and then injecting a molecular weight regulator; and injecting propylene and a monomer for copolymerization into the reactor at a temperature ranging from 40 °C to 90 °C.
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