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公开(公告)号：US10358515B2
公开(公告)日：2019-07-23
申请号：US15175266
申请日：2016-06-07
发明人： Ken Okanishi , Yoshichika Komiya , Takafumi Yamato
IPC分类号： C08F214/26 , C08F210/02 , C08F214/22 , C08K5/06 , C08L23/02 , C08L23/04 , C08L23/06 , C08L25/04 , C08L23/08
摘要： The present invention provides a processing aid for polyolefins capable of improving the processability in processing polyolefins at a temperature lower than 220° C. and a high shear rate. The processing aid for polyolefins is intended to be used in processing a polyolefin at a temperature lower than 220° C., and contains a fluoropolymer that includes a polymerized unit (a) based on CF2═CFCF3 and a polymerized unit, (b) based on at least one selected from the group consisting of monomers represented by CH2═CX11Y11 and monomers represented by CF2═CX21Y21.
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公开(公告)号：US20230383030A1
公开(公告)日：2023-11-30
申请号：US18447502
申请日：2023-08-10
发明人： Kyouhei SAWAKI , Shingo Okuno , Yuki Ueda , Ken Okanishi , Toshiyuki Fukushima , Hitoshi Imamura
CPC分类号： C08F214/262 , H05K3/4644 , H05K1/0373 , C08L27/18 , C08K3/36 , C08J3/20 , C08J3/28 , H05K2203/092 , H05K2203/06 , C08J2327/18 , C08L2203/20
摘要： A modified fluororesin material containing a modified fluororesin which contains a tetrafluoroethylene unit, a modifying monomer unit based on a modifying monomer copolymerizable with tetrafluoroethylene, and a tertiary carbon atom. The tertiary carbon atom is present in an amount of 0.001 to 0.030 mol % of a total amount of the tetrafluoroethylene unit and the modifying monomer unit. The modified fluororesin material has a linear expansion coefficient at 20° C. to 200° C. that is 10% or more lower than that of a non-modified fluororesin material. The non-modified fluororesin material contains a tetrafluoroethylene unit and a modifying monomer unit based on a modifying monomer copolymerizable with tetrafluoroethylene and containing no tertiary carbon atom. Also disclosed is a material for a circuit board including the modified fluororesin material, a laminate for a circuit board, a circuit board, and a method for producing the modified fluororesin material.
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公开(公告)号：US10662324B2
公开(公告)日：2020-05-26
申请号：US16271486
申请日：2019-02-08
IPC分类号： C08L23/02 , C08L27/12 , C08J3/22 , C08F259/08 , C08F293/00 , C08K3/26 , C08K3/34 , C08L71/02 , C08L23/08
摘要： The invention provides a processing aid enabling short-time disappearance of melt fracture occurred in extrusion-molding a melt-fabricable resin at a high shear rate, a great reduction in extrusion pressure, and production of molded articles with good appearance. The processing aid contains a polymer containing a fluorine-containing elastomeric polymer segment and a fluorine-containing non-elastomeric polymer segment.
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公开(公告)号：US11773225B2
公开(公告)日：2023-10-03
申请号：US17043582
申请日：2019-03-27
IPC分类号： C08J5/18 , C08F114/24 , C08F214/26 , B29C43/00 , B29C43/52 , C08F214/22 , B29K27/18
CPC分类号： C08J5/18 , B29C43/003 , B29C43/52 , C08F114/24 , C08F214/22 , C08F214/26 , C08F214/262 , C08F214/265 , B29K2027/18 , C08J2323/08 , C08J2327/04 , C08J2327/16 , C08J2327/18 , C08J2327/20 , C08F214/265 , C08F210/02 , C08F214/22 , C08F214/26 , C08F214/26 , C08F214/28 , C08F214/262 , C08F216/1408
摘要： A molded article containing a crystal of a fluoropolymer. The fluoropolymer contains at least one selected from vinylidene fluoride/tetrafluoroethylene copolymer, polychlorotrifluoroethylene, an ethylene/tetrafluoroethylene copolymer, a tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and a tetrafluoroethylene/hexafluoropropylene copolymer. Further, the crystal is a nano-oriented crystal having a size of 300 nm or smaller.
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公开(公告)号：US10308800B2
公开(公告)日：2019-06-04
申请号：US15503102
申请日：2015-08-07
IPC分类号： C08L23/12 , C08L27/12 , C08J3/22 , C08F259/08 , C08F293/00 , C08K3/26 , C08K3/34 , C08L71/02 , C08L23/08 , C08L23/02
摘要： The invention provides a processing aid enabling short-time disappearance of melt fracture occurred in extrusion-molding a melt-fabricable resin at a high shear rate, a great reduction in extrusion pressure, and production of molded articles with good appearance. The processing aid contains a polymer containing a fluorine-containing elastomeric polymer segment and a fluorine-containing non-elastomeric polymer segment.
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公开(公告)号：US09624362B2
公开(公告)日：2017-04-18
申请号：US14899596
申请日：2014-06-03
IPC分类号： C08L23/00 , C08F214/18 , C08F214/26 , C08L27/18 , C08L23/06 , C08L23/12 , C08L27/06 , C08L25/06 , C08L23/04 , C08L23/08
CPC分类号： C08L23/00 , C08F214/265 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/12 , C08L25/06 , C08L27/06 , C08L27/18 , C08L2205/02 , C08F214/26 , C08F210/02 , C08F214/182
摘要： The present invention provides a processing aid for polyolefins which can eliminate melt fracture occurring at the start of molding in a short time even when a polyolefin, which is a melt-processable polymer, is extrusion-molded at a high speed. The present invention also aims to provide a polyolefin composition containing such a processing aid for polyolefins and a polyolefin. The processing aid for polyolefins contains an ethylene/tetrafluoroethylene copolymer as the only fluoropolymer, the ethylene/tetrafluoroethylene copolymer having a melting point of 170° C. to 270° C.
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