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公开(公告)号：US20180066090A1
公开(公告)日：2018-03-08
申请号：US15550321
申请日：2016-02-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Denis Duchesne , Klaus Hintzer , Harald Kaspar , Kai H. Lochhaas , Per M. Nelson , Jens C. Schrooten , Karl D. Weilandt , Tilman C. Zipplies
IPC: C08F214/26 , C08F214/28 , C08F2/28 , C08K3/08 , C08J5/12
Abstract: A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, n is from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has up to 50 unstable end groups per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
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公开(公告)号：US20210155790A1
公开(公告)日：2021-05-27
申请号：US16970233
申请日：2019-02-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Klaus Hintzer , Harald Kaspar , Jens Schrooten , Tilman C. Zipplies , Florian Jochum , Michael C. Dadalas , Tatsuo Fukushi , Naiyong Jing , Karl D. Weilandt
IPC: C08L27/18 , C08L27/20 , C08F216/14 , C08F2/22 , C08K3/04
Abstract: A tetrafluoroethene copolymer having a melting point of from about 240° C. to 325° C., a melt flow index (MFI at 372° C. and 5 kg load) of 0.5-80 grams/10 minutes and having at least 70% by weight of units derived from tetrafluoroethene and further comprising units derived from at least one perfluorinated alkyl allyl ether (PAAE) comonomer corresponding to the general formula: CF2═CF—CF2—O—Rf (I) where Rf is a perfluorinated alkyl residue having from 1 to 10 carbon atoms and wherein the alkyl chain of the residue may be interrupted once or more than once by an oxygen atom and further, optionally, comprising units derived from perfluoromethyl vinyl ether (PMVE), perfluoroethyl vinyl ether (PEVE) and a combination thereof and wherein the content of units CA derived PAAEs and, optionally, PMVE, PEVE or a combination thereof, is at least 1.0% by weight.
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公开(公告)号：US10988827B2
公开(公告)日：2021-04-27
申请号：US15558697
申请日：2016-03-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Clinton P. Waller, Jr. , Chetan P. Jariwala , Jerald K. Rasmussen , John J. Schmidt , Michael J. Sierakowski , Karl D. Weilandt
Abstract: A coalescing element for aggregating droplets of an emulsion. The coalescing element includes a nonwoven web substrate. A coalescer that includes the coalescing element can also include a housing and a fluid inlet and a fluid outlet each in fluid communication with the coalescing element. The coalescing element and coalescer may be useful for emulsions that form in solvent extraction/electrowinning copper processing and for other emulsions.
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14.发明授权公开(公告)号：US10730980B2
公开(公告)日：2020-08-04
申请号：US15550324
申请日：2016-02-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Denis Duchesne , Klaus Hintzer , Harald Kaspar , Kai H. Lochhaas , Per M. Nelson , Jens C. Schrooten , Karl D. Weilandt , Tilman C. Zipplies
IPC: C08F214/28 , C08F8/22 , C08F214/26 , H01B3/44
Abstract: A copolymer having tetrafluoroethylene units, hexafluoropropylene units, and units independently represented by formula in a range from 0.02 to 2 mole percent, based on the total amount of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, z is 1 or 2, each n is independently from 1 to 6, and m is 0 or 1. The copolymer has a melt flow index in a range from 25 grams per 10 minutes to 35 grams per 10 minutes and has a combined number of unstable end groups and —CF2H end groups in a range from 25 per 106 carbon atoms up to 120 per 106 carbon atoms. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
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公开(公告)号：US10590224B2
公开(公告)日：2020-03-17
申请号：US15742202
申请日：2016-07-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Mitchell , Denis Duchesne , Tatsuo Fukushi , Werner M. A. Grootaert , Larry A. Last , Peter J. Scott , Karl D. Weilandt
IPC: C08F299/02 , C08F293/00 , C08F16/24 , C08F214/22 , C08F214/26 , C08F214/28 , C08K5/14
Abstract: Described herein is a millable fluorinated block copolymer having at least one A block and at least one B block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from TFE, HFP and VDF; and the B block is a segment comprising repeating dilvalent monomeric units derived from HFP and VDF; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100° C.
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Patent Agency Ranking
公开(公告)号：US20190352444A1
公开(公告)日：2019-11-21
申请号：US16477006
申请日：2018-01-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Mitchell , Denis Duchesne , Tatsuo Fukushi , Larry A. Last , Peter J. Scott , Karl D. Weilandt
IPC: C08F293/00
Abstract: There is provided a curable composition comprising a fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least a fluorinated monomer; and (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units that comprises at least a fluorinated monomer and a nitrile-containing cure-site monomer.
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公开(公告)号：US20190202951A1
公开(公告)日：2019-07-04
申请号：US16325831
申请日：2017-08-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Harald Kaspar , Klaus Hintzer , Markus E. Hirschberg , Herbert Koenigsmann , Karl D. Weilandt , Tilman C. Zipplies
IPC: C08F214/26 , C08F214/28 , C08L27/18 , C08L27/20 , H01B3/44
CPC classification number: C08F214/262 , C08F214/26 , C08F214/28 , C08L27/18 , C08L27/20 , C08L2203/16 , C08L2203/18 , H01B3/445
Abstract: A copolymer having tetrafluoroethylene units and second polymerized monomer units in a range from 0.2 to 1 percent by weight, based on the total weight of the copolymer. Rf is a linear or branched perfluoroalkyl group having from 1 to 8 carbon atoms and optionally interrupted by one or more —O— groups, n is independently from 1 to 6, and z is 0, 1, or 2. The copolymer has a melt flow index in a range from 0.02 grams per 10 minutes to 19.4 grams per 10 minutes. The copolymer can be extruded to make articles, such as insulated cables. A method of making the copolymer is also disclosed.
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公开(公告)号：US20170226337A1
公开(公告)日：2017-08-10
申请号：US15503109
申请日：2015-08-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Lisa P. Chen , Klaus Hintzer , Harald Kaspar , Kai H. Lochhaas , Mark W. Muggli , Jens Schrooten , Allen M. Sohlo , Helmut Traunspurger , Karl D. Weilandt , Tilman C. Zipplies
CPC classification number: C08F214/26 , B32B27/08 , B32B27/20 , B32B27/304 , B32B27/308 , B32B27/322 , B32B2262/10 , B32B2264/102 , B32B2307/202 , B32B2307/7242 , B32B2597/00 , B32B2605/08 , C08F214/262
Abstract: Described herein is a composition comprising a fluorothermoplastic polymer, wherein the fluorothermoplastic polymer is derived from: (a) 60-85 mol % tetrafluoroethene; (b) 2-12 mol % hexafluoropropene; (c) 10-30 mol % vinylidene fluoride; (d) 0.2 to 5 mol % of a bromine-containing monomer. Such compositions can be used in multilayer constructions in, for example, fuel hose applications.
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公开(公告)号：US12018105B2
公开(公告)日：2024-06-25
申请号：US17053985
申请日：2019-05-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Klaus Hintzer , Florian D. Jochum , Herbert Koenigsmann , Jens Schrooten , Tilman C. Zipplies , Karl D. Weilandt
IPC: C08F214/26
CPC classification number: C08F214/262
Abstract: Method of reducing the amount of a fluorinated acid or its salts from a fluoropolymer, the method comprises: (i) providing a composition containing particles of the fluoropolymer, (ii) contacting the fluoropolymer particles with a treatment composition comprising at least one organic liquid; and, optionally, further comprising (iii) isolating, washing and subjecting the fluoropolymer to drying treatment, and wherein the fluoropolymer contains units derived from tetrafluoroethene (TFE) and is selected from the group of fluoroelastomers and the group of fluoropolymers having a melting point of less than 150° C. Also provided are fluoropolymer and compositions containing such polymers that are essentially free of fluorinated acids and their salts.
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公开(公告)号：US11312802B2
公开(公告)日：2022-04-26
申请号：US16302539
申请日：2017-05-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Claude Lavallée , Dale E. Hutchens , Harald Kaspar , Karl D. Weilandt , Shireen A. Mamun
Abstract: A composition includes a thermoplastic fluoropolymer having vinylidene fluoride units in an amount of at least 30 mole percent and tetrafluoroethylene units in an amount of at least 5 mole percent. The thermoplastic fluoropolymer is free of hexafluoropropylene units or comprises less than 5 mole percent hexafluoropropylene units. The composition further includes at least one of a non-fluorinated, thermoplastic polymer as a major component of the composition or a polymer processing additive synergist. A method of reducing melt defects during the extrusion of a polymer is also provided. Use of the thermoplastic fluoropolymer as a polymer processing additive is also provided.
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