-
公开(公告)号：US09255164B2
公开(公告)日：2016-02-09
申请号：US13292356
申请日：2011-11-09
IPC分类号： C08F2/26 , C08F14/18 , C08F14/26 , C09D127/18
摘要： A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.
-
公开(公告)号：US20100152379A1
公开(公告)日：2010-06-17
申请号：US12712292
申请日：2010-02-25
CPC分类号： C08F14/26 , C08F14/18 , C08F214/262 , C08K3/20 , C08L27/18 , C08L2201/54 , C08F2/16
摘要： A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A−]Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A− is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
-
13.发明申请Aqueous Polymerization of Fluorinated Monomer Using Polymerization Agent Comprising Fluoropolyether Acid or Salt and Short Chain Fluorosurfactant 审中-公开使用包含氟聚醚酸或盐和短链含氟表面活性剂的聚合剂进行氟化单体的水聚合公开(公告)号：US20100152378A1
公开(公告)日：2010-06-17
申请号：US12712286
申请日：2010-02-25
CPC分类号： C08F14/26 , C08F14/18 , C08F214/262 , C08K3/20 , C08L27/18 , C08L2201/54 , C08F2/16
摘要： A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A−]Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A− is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
摘要翻译： 一种方法，其包括在含有引发剂和聚合剂的水性介质中聚合至少一种氟化单体以形成含氟聚合物颗粒的水分散体，所述聚合剂包含：数均分子量为至少约800g的氟聚醚酸或其盐 / mol; 和具有下式的含氟表面活性剂：[R1-On-L-A] Y +其中：R1是可以含有醚键的直链或支链部分或完全氟化的脂族基团; n为0或1; L是直链或支链亚烷基，其可以是非氟化的，部分氟化的或完全氟化的，并且可以含有醚键; A-是选自羧酸酯，磺酸酯，磺酰胺阴离子和膦酸酯的阴离子基团; Y +为氢，铵或碱金属阳离子; 条件是R1-On-L的链长不大于6个原子。
-
14.发明申请公开(公告)号：US20080114121A1
公开(公告)日：2008-05-15
申请号：US11937536
申请日：2007-11-09
IPC分类号： C08L65/00
CPC分类号： C08F214/262 , C08F14/18 , C08F2/16
摘要： A process for polymerizing at least one fluorinated monomer in an aqueous medium in the presence of initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer having a fluoropolymers solids content of at least about 10% by weight. The polymerization agent is a combination of fluoropolyether acid or salt thereof and hydrocarbon surfactant. The aqueous medium contains less than about 300 ppm of perfluoroalkane carboxylic acid or salt fluorosurfactants. The process is preferably performed without adding polymer seed prior to polymerization kick-off.
摘要翻译： 一种在引发剂和聚合剂的存在下在水性介质中聚合至少一种氟化单体以形成含氟聚合物固体含量为至少约10重量％的含氟聚合物颗粒的水分散体的方法。 聚合剂是氟聚醚酸或其盐和烃表面活性剂的组合。 含水介质含有少于约300ppm的全氟烷基羧酸或盐含氟表面活性剂。 该方法优选在聚合反应开始之前不加入聚合物种子进行。
-
15.发明授权Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant 有权使用包含含氟聚醚酸或盐和短链含氟表面活性剂的聚合剂进行含氟单体的水聚合公开(公告)号：US08519072B2
公开(公告)日：2013-08-27
申请号：US13167000
申请日：2011-06-23
IPC分类号： C08F14/18
CPC分类号： C08F14/26 , C08F14/18 , C08F214/262 , C08K3/20 , C08L27/18 , C08L2201/54 , C08F2/16
摘要： A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A−]Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A− is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
摘要翻译： 一种方法，其包括在含有引发剂和聚合剂的水性介质中聚合至少一种氟化单体以形成含氟聚合物颗粒的水分散体，所述聚合剂包含：数均分子量为至少约800g的氟聚醚酸或其盐 / mol; 和具有下式的含氟表面活性剂：[R1-On-L-A-] Y +其中：R1是可以含有醚键的直链或支链部分或完全氟化的脂族基团; n为0或1; L是直链或支链亚烷基，其可以是非氟化的，部分氟化的或完全氟化的，并且可以含有醚键; A-是选自羧酸酯，磺酸酯，磺酰胺阴离子和膦酸酯的阴离子基团; Y +为氢，铵或碱金属阳离子; 条件是R1-On-L的链长不大于6个原子。
-
公开(公告)号：US20120116017A1
公开(公告)日：2012-05-10
申请号：US13292344
申请日：2011-11-09
IPC分类号： C08L27/18
摘要： A process is provided for polymerizing fluoromonomer in an aqueous medium, wherein a dispersion of essentially surfactant-free hydrocarbon-containing oleophilic nucleation sites is first formed in the aqueous medium, and then polymerization is commenced to form a dispersion of fluoropolymer particles at the oleophilic nucleation sites, wherein the nucleation sites can be derived from hydrocarbon-containing compound. The surfactant used to stabilize the fluoropolymer dispersion can also be hydrocarbon-containing.
摘要翻译： 提供了一种用于在含水介质中聚合含氟单体的方法，其中首先在水性介质中形成基本上不含表面活性剂的含烃亲油成核位点的分散体，然后开始聚合以在亲油成核时形成含氟聚合物颗粒的分散体 其中成核位点可以衍生自含烃化合物。 用于稳定含氟聚合物分散体的表面活性剂也可以是含烃的。
-
17.发明申请Reducing the Telogenic Behavior of Hydrocarbon-Containing Surfactants in Aqueous Dispersion Fluoromonomer Polymerization 有权降低含水分散体表面活性剂在含水分散体单体聚合中的成因行为公开(公告)号：US20120116015A1
公开(公告)日：2012-05-10
申请号：US13292373
申请日：2011-11-09
IPC分类号： C08F2/26 , C08F114/26 , C08L29/10 , C08F214/28 , C08F216/14 , C08L27/20 , C08L27/18 , C08F2/24
CPC分类号： C08F14/18 , C08F2/26 , C08F14/26 , C08F114/26 , C09D127/18 , C08F2/16
摘要： A polymerization process is provided, comprising polymerizing fluoromonomer in an aqueous medium to form a dispersion of fluoropolymer particles in the aqueous medium, said polymerizing being carried out in the presence of (i) polymerization initiator, and (ii) hydrocarbon-containing surfactant stabilizing the dispersion of fluoropolymer particles, the hydrocarbon-containing surfactant being passivated to reduce its the telogenic behavior.
摘要翻译： 提供聚合方法，包括在含水介质中聚合含氟单体以在含水介质中形成含氟聚合物颗粒的分散体，所述聚合在（i）聚合引发剂存在下进行，和（ii）使含烃表面活性剂稳定 含氟聚合物颗粒的分散，含烃表面活性剂被钝化以降低它的致死性行为。
-
18.发明申请AQUEOUS POLYMERIZATION OF FLUORINATED MONOMER USING POLYMERIZATION AGENT COMPRISING FLUOROPOLYETHER ACID OR SALT AND SHORT CHAIN FLUOROSURFACTANT 审中-公开使用包含氟聚乙酸或盐和短链氟化物的聚合反应剂的氟化单体的水性聚合公开(公告)号：US20120077931A1
公开(公告)日：2012-03-29
申请号：US13313271
申请日：2011-12-07
CPC分类号： C08F14/26 , C08F14/18 , C08F214/262 , C08K3/20 , C08L27/18 , C08L2201/54 , C08F2/16
摘要： A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A−]Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A− is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
摘要翻译： 一种方法，其包括在含有引发剂和聚合剂的水性介质中聚合至少一种氟化单体以形成含氟聚合物颗粒的水分散体，所述聚合剂包含：数均分子量为至少约800g的氟聚醚酸或其盐 / mol; 和具有下式的含氟表面活性剂：[R1-On-L-A] Y +其中：R1是可以含有醚键的直链或支链部分或完全氟化的脂族基团; n为0或1; L是直链或支链亚烷基，其可以是非氟化的，部分氟化的或完全氟化的，并且可以含有醚键; A-是选自羧酸酯，磺酸酯，磺酰胺阴离子和膦酸酯的阴离子基团; Y +为氢，铵或碱金属阳离子; 条件是R1-On-L的链长不大于6个原子。
-
19.发明申请Aqueous Polymerization of Fluorinated Monomer Using a Mixture of Fluoropolyether Acids or Salts 审中-公开使用氟聚醚酸或盐的混合物进行氟化单体的水聚合公开(公告)号：US20120004365A1
公开(公告)日：2012-01-05
申请号：US13230885
申请日：2011-09-13
申请人： Paul Douglas Brothers , Subhash Vishnu Gangal , Gregory Allen Chapman , Jon Lee Howell , Adam Paul Smith
发明人： Paul Douglas Brothers , Subhash Vishnu Gangal , Gregory Allen Chapman , Jon Lee Howell , Adam Paul Smith
IPC分类号： C08F2/20 , C08L27/18 , C07F9/30 , C07C59/135 , C07C309/10 , C07C307/02 , C08K5/19 , C08F14/26
CPC分类号： C08L27/18 , C08F6/16 , C08F14/18 , C08F114/26 , C08F214/18 , C08F216/1408 , C08G65/007 , C08G2650/48 , C08J3/16 , C08J2327/18 , C08K5/095 , C08L71/02 , C08L2201/54 , C08L27/12 , C08F2/16
摘要： A composition comprising a mixture of fluoropolyether acids or salts having a number average value of about 800 to about 2500 g/mol. The amount of fluoropolyether acids or salt in the mixture having a molecular weight of not more than 500 g/mol is not more than 50 ppm by weight of the total amount of fluoropolyether acids or salts in the mixture. The amount of fluoropolyether acids or salts in the mixture having a molecular weight of 2500 g/mol or greater is not more than 40% by weight of the total amount of fluoropolyether acids or salts in the mixture. Preferably the fluoropolyether acids or salts comprise an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion and phosphonate. Also disclosed is an aqueous dispersion polymerization process for fluoropolymer manufacture employing polymerization agent comprising the specified mixture of fluoropolyether acids or salts.
摘要翻译： 包含数均分子量为约800至约2500g / mol的氟聚醚酸或盐的混合物的组合物。 分子量不超过500g / mol的混合物中含氟聚醚酸或盐的含量不超过混合物中氟聚醚酸或盐的总量的50重量ppm。 分子量为2500g / mol以上的混合物中的氟聚醚酸或其盐的含量不超过混合物中氟聚醚酸或盐的总量的40重量％。 优选氟聚醚酸或盐包含选自羧酸盐，磺酸盐，磺酰胺阴离子和膦酸盐的阴离子基团。 还公开了使用包含含氟聚醚酸或盐的特定混合物的聚合剂的氟聚合物制造的水性分散体聚合方法。
-
20.发明授权Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant 有权使用包含含氟聚醚酸或盐和短链含氟表面活性剂的聚合剂进行含氟单体的水聚合公开(公告)号：US07705074B2
公开(公告)日：2010-04-27
申请号：US11937544
申请日：2007-11-09
IPC分类号： C07F9/40
CPC分类号： C08F14/26 , C08F14/18 , C08F214/262 , C08K3/20 , C08L27/18 , C08L2201/54 , C08F2/16
摘要： A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A−] Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A− is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.
摘要翻译： 一种方法，其包括在含有引发剂和聚合剂的水性介质中聚合至少一种氟化单体以形成含氟聚合物颗粒的水分散体，所述聚合剂包含：数均分子量为至少约800g的氟聚醚酸或其盐 / mol; 和具有下式的含氟表面活性剂：[R1-On-L-A] Y +其中：R1是可以含有醚键的直链或支链部分或完全氟化的脂族基团; n为0或1; L是直链或支链亚烷基，其可以是非氟化的，部分氟化的或完全氟化的，并且可以含有醚键; A-是选自羧酸酯，磺酸酯，磺酰胺阴离子和膦酸酯的阴离子基团; Y +为氢，铵或碱金属阳离子; 条件是R1-On-L的链长不大于6个原子。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.035 秒)
