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公开(公告)号：WO2022259087A1
公开(公告)日：2022-12-15
申请号：PCT/IB2022/055078
申请日：2022-05-31
发明人： FUKUSHI, Tatsuo , GUERRA, Miguel A. , HINTZER, Klaus , MITCHELL, Michael H. , ROOP, Justin T. , VOWINKEL, Steffen
IPC分类号： C08F14/26 , C08F214/26
摘要： Described herein is a method of making a fluoropolymer, the method comprising: providing an aqueous mixture comprising a fluorinated monomer, and an initiator; polymerizing the aqueous mixture under free radical conditions; and adding perfluoromethyl iodide during the polymerization to provide an aqueous dispersion of the fluoropolymer, wherein the amount of perfluorooctanoic acid or salt thereof in the aqueous dispersion of the fluoropolymer is not more than 25 nanograms per gram of the fluoropolymer.
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公开(公告)号：WO2022234365A1
公开(公告)日：2022-11-10
申请号：PCT/IB2022/053284
申请日：2022-04-07
发明人： JING, Naiyong , HINTZER, Klaus , KOU, Xiaoming , LI, Cheng , QIU, Zai-Ming , LENG, Siwei , LILLIE, Leon M. , DADALAS, Michael C. , VOWINKEL, Steffen , MERTENS, Timothy A. , FUKUSHI, Tatsuo , LINDSAY, Maria C.
IPC分类号： H01B3/44 , C09D127/18
摘要： Electronic telecommunication articles are described comprising a layer of fluoropolymer composition comprising: an amorphous fluoropolymer comprising at least 80, 85, or 90% by weight of polymerized units perfluorinated monomers including one or more unsaturated perfluorinated alkyl ethers; and crystalline fluoropolymer; wherein the fluoropolymer composition lacks crosslinks of a chemical curing agent. Also described are methods of making a coated substrate, substrates comprising a fluoropolymer composition, and fluoropolymer compositions.
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公开(公告)号：WO2020132203A1
公开(公告)日：2020-06-25
申请号：PCT/US2019/067411
申请日：2019-12-19
发明人： FUKUSHI, Tatsuo , HINTZER, Klaus , JOCHUM, Florian D. , MITCHELL, Michael H. , NGUYEN, Tho Q. , SCOTT, Peter J. , SOHLO, Allen M. , SUZUKI, Yuta , WEILANDT, Karl D. , VOWINKEL, Steffen
IPC分类号： C08L27/18 , C08F214/26
摘要： Described herein is a method of making a curable perfluoroelastomer, wherein the curable perfluoroelastomer comprises particles of a semi crystalline fluoropolymer, wherein the semi crystalline fluoropolymer is a TFE copolymer comprising no more than 1 wt% of at least one additional fluorinated monomer. The method comprises: (a) obtaining an amorphous perfluoropolymer and the particles of the semi crystalline fluoropolymer; and (c) dry blending the amorphous perfluoropolymer and the particles to form a curable perfluoroelastomer.
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4.发明申请
公开(公告)号：WO2023042005A1
公开(公告)日：2023-03-23
申请号：PCT/IB2022/057567
申请日：2022-08-12
IPC分类号： C08F259/08 , C09D151/00 , H01B3/44
摘要： Presently described are electronic telecommunication articles comprising core shell fluoropolymers comprising polymerized units of tetrafluoroethylene and no greater than 1 wt.% of polymerized units of comonomer comprising a functional group. The functional groups are typically selected from nitrile, halogen, sulfur oxide, perfluorinated alkyl ether, and carbonyl. The core shell fluoropolymer typically comprises at least 80, 85, 90, 95, 96, 97, 98, 99 wt.% or greater of polymerized units of tetrafluoroethylene. In some embodiments, the core shell fluoropolymer further comprises up to 20 or 25 wt.% of polymerized units of other comonomers, such as hexafluoropropylene (HFP). Also described are methods of making a coated substrate, coated substrates, and core shell fluoropolymers.
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公开(公告)号：WO2023285909A1
公开(公告)日：2023-01-19
申请号：PCT/IB2022/056131
申请日：2022-06-30
发明人： FUKUSHI, Tatsuo , BAKER, Julie A. , SUZUKI, Yuta , VOWINKEL, Steffen , MCBRIDE, Justin P. , MITCHELL, Michael H.
IPC分类号： C08L27/12
摘要： Fluoroelastomers containing at least 25 weight percent perfluorinated thermoplastic fillers are described. The perfluorinated thermoplastic fillers comprise a first perfluorinated thermoplastic filler having a first d50 particle size of 10 to 250 nanometers, and a second perfluorinated thermoplastic filler having a second d50 particle size of 5 to 500 micrometers. The first thermoplastic filler may be obtained from a latex while the second thermoplastic filler may be obtained as a dry powder. Methods of making such materials and cured articles prepared from them are also described.
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公开(公告)号：WO2022234364A1
公开(公告)日：2022-11-10
申请号：PCT/IB2022/053281
申请日：2022-04-07
发明人： JING, Naiyong , HINTZER, Klaus , KOU, Xiaoming , LI, Cheng , QIU, Zai-Ming , LENG, Siwei , LILLIE, Leon , DADALAS, Michael C. , VOWINKEL, Steffen , MERTENS, Timothy A. , FUKUSHI, Tatsuo
IPC分类号： H01B3/44 , C09D127/18
摘要： Electronic telecommunication articles are described comprising a layer of fluoropolymer composition comprising a fluoropolymer or fluoropolymer blend comprising at least 1 wt.% and less than 30 wt.% of polymerized units of unsaturated (per)fluorinated alkyl ether(s). Also described are methods of making a coated substrate, a substrate comprising a fluoropolymer composition, and fluoropolymer compositions.
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公开(公告)号：WO2022234363A1
公开(公告)日：2022-11-10
申请号：PCT/IB2022/053241
申请日：2022-04-06
发明人： JING, Naiyong , HINTZER, Klaus , KOU, Xiaoming , LI, Cheng , QIU, Zai-Ming , LENG, Siwei , LILLIE, Leon M. , DADALAS, Michael C. , VOWINKEL, Steffen , MERTENS, Timothy A. , FUKUSHI, Tatsuo
IPC分类号： H01B3/44 , C09D127/18
摘要： An electronic telecommunication article is described comprising a layer of fluoropolymer composition comprising an uncrosslinked fluoropolymer comprising at least 80, 85, or 90% by weight of polymerized units perfluorinated monomers including one or more unsaturated perfluorinated alkyl ethers. In typical embodiments, the uncrosslinked fluoropolymer comprises at least 10, 20, or 30 wt.% of one or more unsaturated perfluorinated alkyl ethers. The uncrosslinked fluoropolymer may be characterized as amorphous. The uncrosslinked fluoropolymer is soluble in fluorinated solvent. Also described are coated (e.g. copper) substrates, methods, and compositions.
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公开(公告)号：WO2022180547A1
公开(公告)日：2022-09-01
申请号：PCT/IB2022/051601
申请日：2022-02-23
发明人： FUKUSHI, Tatsuo , GUERRA, Miguel A. , HINTZER, Klaus , MALINSKY, Joshua E. , MITCHELL, Michael H. , ROOP, Justin T. , VOWINKEL, Steffen
IPC分类号： C08F214/18 , C08F14/18
摘要： The process includes providing an aqueous mixture including perfluorinated monomers, a fluoroalkyl sulfinic acid or salt thereof, and an oxidizing agent capable of oxidizing the fluoroalkyl sulfinic acid or salt thereof and polymerizing the perfluorinated monomers under free radical conditions to provide an aqueous dispersion of the fluoropolymer. The fluoroalkyl group has from one to three carbon atoms. The amount of perfluorooctanoic acid or salt thereof in the aqueous dispersion of the fluoropolymer as polymerized is not more than 25 nanograms per gram of the fluoropolymer. A fluoropolymer made by the process is also described.
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公开(公告)号：WO2020132213A1
公开(公告)日：2020-06-25
申请号：PCT/US2019/067422
申请日：2019-12-19
发明人： HINTZER, Klaus , AOKI, Tamon , FUKUSHI, Tatsuo , JOCHUM, Florian D. , SCOTT, Peter J. , SUZUKI, Yuta , WEILANDT, Karl D. , VOWINKEL, Steffen
IPC分类号： C08L27/18 , C08F214/26
摘要： Described herein is a latex blend comprising (i) an amorphous perfluoropolymer and (ii) an aqueous dispersion of semi crystalline fluoropolymer particles, wherein the particles comprise a TFE homopolymer or a TFE copolymer comprising no more than 1 wt% of a second fluorinated monomer, wherein the semi crystalline fluoropolymer particles (a) have an MFI (372°C with 2.16 kg) of less than 50 g/10 min or (b) are not melt processible and have an SSG of less than 2.190, wherein the semi crystalline fluoropolymer particles have an average diameter greater than 100 nm.
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