公开(公告)号：US20050096425A1

公开(公告)日：2005-05-05

申请号：US10947531

申请日：2004-09-22

Applicant: Michael Coates ,  Wes Demonde ,  Kurt Davidson

Inventor： Michael Coates ,  Wes Demonde ,  Kurt Davidson

IPC: C08J3/05 ,  C08J3/07 ,  C08K3/00 ,  C08L27/18 ,  C08L29/04 ,  C08L33/02 ,  C08L71/02 ,  C09D127/18

CPC classification number: C08J3/05 ,  C08J2327/18 ,  C08L29/04 ,  C08L33/02 ,  C08L71/02 ,  C09D127/18 ,  C08L2666/02

Abstract: A process for stabilizing aqueous dispersions of polytetrafluoroethylene (PTFE) or co- and terpolymers of PTFE by adding a macromolecular species directly to the aqueous dispersion. Surprisingly, it has been observed that after the macromolecular species has been added to the dispersion of PTFE or co- and terpolymers of PTFE, the dispersions are very stable, do not readily coagulate, and remain stable even when subjected to freeze/melt cycles. The amount of macromolecular species which may be added may vary from about 0.1 wt. % to about 20.0 wt. %, for example, and suitable macromolecular species include polyacrylic acid (PAA), polyvinylalcohol (PVOH), polyethyleneimies (PEI), and polyethylene glycol (PEG), and others. The present method is particularly effective for stabilizing commercially available “unstabilized” aqueous dispersions of PTFE or co- and terpolymers of PTFE which do not include a surfactant or are substantially free of surfactant.

Abstract translation: 通过将大分子物质直接加入到水分散体中来稳定聚四氟乙烯（PTFE）或PTFE的共聚物和三元共聚物的水分散体的方法。 令人惊奇的是，已经观察到，在将大分子物质添加到PTFE或PTFE的共聚物和三元共聚物的分散体中之后，分散体非常稳定，即使在进行冷冻/熔融循环时也不容易凝结，并保持稳定。 可加入的大分子物质的量可以为约0.1wt。 ％至约20.0重量％ 例如，合适的大分子物质包括聚丙烯酸（PAA），聚乙烯醇（PVOH），聚乙二醇（PEI）和聚乙二醇（PEG）等。 本方法对于稳定市售的“不稳定”的PTFE水性分散体或不含表面活性剂或基本上不含表面活性剂的PTFE的共聚和三元共聚物特别有效。

公开(公告)号：US07811631B2

公开(公告)日：2010-10-12

申请号：US11463498

申请日：2006-08-09

Applicant: Michael Coates ,  Wes Demonde ,  Kurt Davidson

Inventor： Michael Coates ,  Wes Demonde ,  Kurt Davidson

IPC: B05D7/00

CPC classification number: C08J3/28 ,  C08F8/00 ,  C08F14/18 ,  C08J3/12 ,  C08J2327/12 ,  C08F2/02 ,  C08F114/26 ,  C08F114/22 ,  C08F214/26 ,  C08F214/245

Abstract: Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

Abstract translation: 对含氟聚合物颗粒进行高能量处理，以改变颗粒表面的化学官能度，从而改变颗粒的表面特性。 这些特性提高了这些颗粒的有用性，并使其高度分散，甚至在水中。 表面处理的含氟聚合物颗粒经历化学交联过程，或者可以进行高能量处理工艺，并且可以任选地在上述方法之前用大分子化学物质进行预处理。 高能量处理可以用于表面处理含氟聚合物颗粒，并且在一些实施方案中，还可能引起含氟聚合物的链断裂，从而降低含氟聚合物颗粒的分子量。 表面处理的含氟聚合物颗粒可用于在各种基材上形成含氟聚合物涂层。

公开(公告)号：US20070059445A1

公开(公告)日：2007-03-15

申请号：US11463498

申请日：2006-08-09

Applicant: Michael Coates ,  Wes Demonde ,  Kurt Davidson

Inventor： Michael Coates ,  Wes Demonde ,  Kurt Davidson

IPC: B05D7/00 ,  B29C71/04

CPC classification number: C08J3/28 ,  C08F8/00 ,  C08F14/18 ,  C08J3/12 ,  C08J2327/12 ,  C08F2/02 ,  C08F114/26 ,  C08F114/22 ,  C08F214/26 ,  C08F214/245

Abstract: Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

Abstract translation: 对含氟聚合物颗粒进行高能量处理，以改变颗粒表面的化学官能度，从而改变颗粒的表面特性。 这些特性提高了这些颗粒的有用性，并使其高度分散，甚至在水中。 表面处理的含氟聚合物颗粒经历化学交联过程，或者可以进行高能量处理工艺，并且可以任选地在上述方法之前用大分子化学物质进行预处理。 高能量处理可以用于表面处理含氟聚合物颗粒，并且在一些实施方案中，还可能引起含氟聚合物的链断裂，从而降低含氟聚合物颗粒的分子量。 表面处理的含氟聚合物颗粒可用于在各种基材上形成含氟聚合物涂层。

公开(公告)号：US06824872B2

公开(公告)日：2004-11-30

申请号：US10128185

申请日：2002-04-23

Applicant: Michael Coates ,  Wes Demonde ,  Kurt Davidson

Inventor： Michael Coates ,  Wes Demonde ,  Kurt Davidson

IPC: B32B566

CPC classification number: C08J3/28 ,  C08F8/00 ,  C08F14/18 ,  C08J3/12 ,  C08J2327/12 ,  Y10T428/254 ,  Y10T428/2991 ,  Y10T428/2998 ,  C08F2/02 ,  C08F114/26 ,  C08F114/22 ,  C08F214/245 ,  C08F214/26

Abstract: Fluoropolymer powder particles which are surface treated so as to change the chemical functionality on their surfaces which in turn changes the surfaces characteristics. These characteristics improve the usefulness of these powders and can make them wettable. The surface treated fluoropolymer particles are subject to an atmospheric plasma treatment process, and preferably pretreated with a macromolecular chemical species prior to the atmospheric plasma treatment. The atmospheric plasma treatment enhances adhesion to the powder surface and can also enhance cross-linking of the macromolecular chemical species. The surface treated fluoropolymer powders can be used to form fluoropolymer coatings on various substrates.

Abstract translation: 表面处理以改变其表面上的化学官能度的氟聚合物粉末颗粒，其又改变表面特性。 这些特性提高了这些粉末的用途，并使它们变湿。 表面处理的含氟聚合物颗粒经受大气等离子体处理工艺，优选在大气等离子体处理之前用大分子化学物质预处理。 大气等离子体处理提高了与粉末表面的粘附性，并且还可以增强大分子化学物质的交联。 表面处理的含氟聚合物粉末可用于在各种基材上形成氟聚合物涂层。

公开(公告)号：US07220483B2

公开(公告)日：2007-05-22

申请号：US10345541

申请日：2003-01-16

Applicant: Michael Coates ,  Wes Demonde ,  Kurt Davidson

Inventor： Michael Coates ,  Wes Demonde ,  Kurt Davidson

IPC: B32B5/16

CPC classification number: C08J3/28 ,  C08F8/00 ,  C08F14/18 ,  C08J3/12 ,  C08J2327/12 ,  Y10T428/254 ,  Y10T428/2991 ,  Y10T428/2998 ,  C08F2/02 ,  C08F114/26 ,  C08F114/22 ,  C08F214/245 ,  C08F214/26

Abstract: Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

Abstract translation: 对含氟聚合物颗粒进行高能量处理，以改变颗粒表面的化学官能度，从而改变颗粒的表面特性。 这些特性提高了这些颗粒的有用性，并使其高度分散，甚至在水中。 表面处理的含氟聚合物颗粒经历化学交联过程，或者可以进行高能量处理工艺，并且可以任选地在上述方法之前用大分子化学物质进行预处理。 高能量处理可以用于表面处理含氟聚合物颗粒，并且在一些实施方案中，还可能引起含氟聚合物的链断裂，从而降低含氟聚合物颗粒的分子量。 表面处理的含氟聚合物颗粒可用于在各种基材上形成含氟聚合物涂层。