Patents by Inventor Gwo S. Swei

Gwo S. Swei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8835543
    Abstract: A composite material includes a non-polar polymer and alumina hydrate particulate. The composite material has a Heat Distortion Performance of at least about 10% relative to the non-polar polymer absent the alumina hydrate particulate. The composite material may include a coupling agent including a phosphinic acid group, a phosphonic acid group or an ester derivative thereof.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: September 16, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: David J. Bravet, Olivier Guiselin, Gwo S. Swei, Yves Boussant-Roux
  • Patent number: 8726611
    Abstract: A roofing membrane includes first and second layers. The first layer includes a low surface energy polymer. A method of installing the roofing membrane includes, along an edge of a first membrane, mechanically removing a portion of the first membrane extending vertically to include the first layer and a portion of the second layer to leave a flap of the first membrane, placing an edge of a second membrane to overlap the first membrane, and bonding the first membrane to the second membrane. The underside of the edge of the second membrane overlies the flap of the first membrane.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 20, 2014
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Gwo S. Swei, Maryann C. Kenney, Ricky Santoso, Charles Hayden
  • Publication number: 20130131237
    Abstract: A composite material includes a non-polar polymer and alumina hydrate particulate. The composite material has a Heat Distortion Performance of at least about 10% relative to the non-polar polymer absent the alumina hydrate particulate. The composite material may include a coupling agent including a phosphinic acid group, a phosphonic acid group or an ester derivative thereof.
    Type: Application
    Filed: January 23, 2013
    Publication date: May 23, 2013
    Inventors: David J. Bravet, Olivier Guiselin, Gwo S. Swei, Yves Boussant-Roux
  • Patent number: 8383702
    Abstract: A composite material includes a non-polar polymer and alumina hydrate particulate. The composite material has a Heat Distortion Performance of at least about 10% relative to the non-polar polymer absent the alumina hydrate particulate. The composite material may include a coupling agent including a phosphinic acid group, a phosphonic acid group or an ester derivative thereof.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: February 26, 2013
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: David Bravet, Olivier Guiselin, Gwo S. Swei, Yves Boussant-Roux
  • Patent number: 8337574
    Abstract: An abrasive product is disclosed. The abrasive product includes a binder support substrate, a binder, an abrasive material affixed to the support substrate by the binder, and an antiloading composition on the surface of the abrasive product. The antiloading composition is a lauryl sulfate. The lauryl sulfate is the only organic antiloading compound included in the antiloading composition.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: December 25, 2012
    Assignee: Saint-Gobain Abrasives, Inc.
    Inventors: Gwo S. Swei, Damien C. Nevoret, Patrick Yang
  • Patent number: 8309645
    Abstract: A composite material includes a polyimide matrix material and an exfoliated graphite material dispersed within the polyimide matrix material. The composite material exhibits a Thermal Stability Index of at least about 20 and has a particle distribution in which 90% of the particles have a particle size not greater than 500 micrometers.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: November 13, 2012
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Gwo S. Swei, Ilya L. Rushkin, Pawel Czubarow, David Worth House, David DeCoster, Olivier Guiselin
  • Publication number: 20120251020
    Abstract: A self-lubricating structure such as a bearing having a low coefficient of friction, a high bearing load capability, and a low abrasiveness is provided. The self-lubricating bearing has a PTFE-based sliding layer that is deposited on a metal backing layer. The sliding layer includes a PTFE-based matrix, self-lubricating fillers such as liquid crystalline polymer, and high temperature reinforcing fiber such as carbon fiber. A method for producing the self-lubricating bearing is also provided.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 4, 2012
    Inventor: Gwo S. Swei
  • Publication number: 20120251021
    Abstract: A self-lubricating structure such as a bearing having a low coefficient of friction, a high bearing load capability, and a low abrasiveness is provided. The self-lubricating bearing has a PTFE-based sliding layer that is bonded to a metal backing layer. The sliding layer includes a PTFE-based matrix, self-lubricating fillers such as liquid crystalline polymer, and high temperature reinforcing fiber such as carbon fiber. A method for producing the self-lubricating bearing is also provided.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 4, 2012
    Inventor: Gwo S. Swei
  • Patent number: 7641964
    Abstract: A roofing material includes a first layer including a fluoropolymer, a second layer directly bonded to and directly contacting the first layer, and a third layer underlying the second layer. The second layer includes an unfunctionalized olefinic polymer. The third layer includes a polymeric material and a filler.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: January 5, 2010
    Assignee: Saint-Gobain Performance Pastics Corporation
    Inventors: Gwo S. Swei, Viktor V. Skatchkov, Maryann C. Kenney, David Bravet
  • Publication number: 20090199487
    Abstract: An antiloading composition includes a first organic compound. The compound has a water contact angle criterion that is less than a water contact angle for zinc stearate. The first compound also satisfies at least one condition selected from the group consisting of a melting point Tmelt greater than about 40° C., a coefficient of friction F less than about 0.3, and an antiloading criterion P greater than about 0.3. Another embodiment includes a second organic compound, having a different water contact angle from that of the first organic compound. The composition has a particular water contact angle Wop that is determined, at least in part, by the independent Wog of each compound and the proportion of each compound in the composition. Also, an abrasive product includes the antiloading composition. A method of grinding a substrate is disclosed that includes employing effective amount of an antiloading composition. Further disclosed is a method of selecting an antiloading compound.
    Type: Application
    Filed: January 20, 2009
    Publication date: August 13, 2009
    Inventors: Gwo S. Swei, Damien C. Nevoret, Patrick Yang
  • Publication number: 20090093608
    Abstract: A method of forming a polymeric material includes forming a solution including at least two solvents and at least two diamines. The at least two diamines include oxydianiline (ODA) in an amount of about 50% to about 90% based on the total moles of the at least two diamines and include m-phenylenediamine (MPD) in an amount of about 10% to about 50% based on the total moles of the at least two diamines. The at least two solvents include a high polarity solvent in an amount of about 40% to about 90% based on the total weight of the at least two solvents and include a low polarity solvent in an amount of about 10% to about 60% based on the total weight of the at least two solvents. The method further includes adding pyromellitic dianhydride (PMDA) to the solution in a ratio of about 0.9 to about 1.05 based on the total moles of the at least two diamines to form a polyamic acid solution. In addition, the method includes imidizing the polyamic acid solution to form a polyimide material.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Ilya L. Rushkin, Gwo S. Swei
  • Publication number: 20090093581
    Abstract: A composite material includes a polyimide matrix material and an exfoliated graphite material dispersed within the polyimide matrix material. The composite material exhibits a Thermal Stability Index of at least about 20.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Gwo S. Swei, Ilya L. Rushkin, Pawel Czubarow, David Worth House, David C. DeCoster, Olivier Guiselin
  • Publication number: 20090053529
    Abstract: A roofing material includes a bitumen sheet material and a multilayer capping film. The multilayer capping film includes a first layer comprising a first fluoropolymer and a second layer underlying the first layer. The second layer includes at least 40 wt % of a second fluoropolymer and not greater than 60 wt % of an acrylic polymer. The second layer of the multilayer capping film overlies the bitumen sheet material and the first layer of the multilayer capping film forms an outer surface of the roofing material.
    Type: Application
    Filed: August 21, 2008
    Publication date: February 26, 2009
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Maryann C. Kenney, Gwo S. Swei, Giorgio Bortolotto, Christian C. Honeker
  • Publication number: 20080224366
    Abstract: A composite material includes polyimide material, a particulate metal oxide dispersed in the polyimide material in an amount between about 0.1 wt % and about 20.0 wt %, and a carbonaceous material dispersed in the polyimide material in an amount between about 0.0 wt % and about 45.0 wt %.
    Type: Application
    Filed: December 31, 2007
    Publication date: September 18, 2008
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Gwo S. Swei, Ilya L. Rushkin, David Worth House, Pawel Czubarow
  • Publication number: 20080153965
    Abstract: A composite material includes a non-polar polymer and alumina hydrate particulate. The composite material has a Heat Distortion Performance of at least about 10% relative to the non-polar polymer absent the alumina hydrate particulate.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 26, 2008
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: David Bravet, Olivier Guiselin, Gwo S. Swei, Yves Boussant-Roux
  • Publication number: 20080029210
    Abstract: A roofing material includes a first layer including a fluoropolymer, a second layer directly bonded to and directly contacting the first layer, and a third layer underlying the second layer. The second layer includes an unfunctionalized olefinic polymer. The third layer includes a polymeric material and a filler.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 7, 2008
    Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
    Inventors: Gwo S. Swei, Viktor V. Skatchkov, Maryann C. Kenney, David Bravet
  • Patent number: 7195658
    Abstract: An antiloading composition includes a first organic compound. The compound has a water contact angle criterion that is less than a water contact angle for zinc stearate. The first compound also satisfies at least one condition selected from the group consisting of a melting point Tmelt greater than about 40° C., a coefficient of friction F less than about 0.3, and an antiloading criterion P greater than about 0.3. Another embodiment includes a second organic compound, having a different water contact angle from that of the first organic compound. The composition has a particular water contact angle W°p that is determined, at least in part, by the independent W°g of each compound and the proportion of each compound in the composition. Also, an abrasive product includes the antiloading composition. A method of grinding a substrate is disclosed that includes employing effective amount of an antiloading composition. Further disclosed is a method of selecting an antiloading compound.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: March 27, 2007
    Assignee: Saint-Gobain Abrasives, Inc.
    Inventors: Gwo S. Swei, Damien C. Nevoret, Patrick Yang
  • Patent number: 6172139
    Abstract: A method for making a particulate filled polymeric matrix composite film includes mixing a polymeric matrix material with a dispersion of particulate filler in a carrier liquid to form a casting composition and adjusting the viscosity of the casting composition to retard separation of the particulate filler from the composition. A layer of the viscosity-adjusted casting composition is cast on a substrate and the layer is consolidated to form the particulate filled polymer matrix composite film. Films made by the method include very thin, e.g less than 1.0 mil, fluoropolymeric matrix films highly filled with very small diameter, preferably spherical, particles for use as, e.g. dielectric substrate materials in laminar electrical circuits.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: January 9, 2001
    Assignee: World Properties, Inc.
    Inventors: Gwo S. Swei, David J. Arthur
  • Patent number: 5624471
    Abstract: Waterproof coated abrasive paper made using a maker and/or size coat comprising a radiation-curable binder that is hydrophobic when polymerized.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: April 29, 1997
    Assignee: Norton Company
    Inventors: Anthony C. Gaeta, Gwo S. Swei
  • Patent number: 5582625
    Abstract: A coated abrasive backing material is provided which is suitable for heavy duty grinding applications is provided by a continuous solid resin matrix having dispersed therein an essentially isotropic fibrous web. The invention also provides a coated abrasive based on said backing.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 10, 1996
    Assignee: Norton Company
    Inventors: Howard R. Wright, Richard Vogel, Richard Sargood, Gwo S. Swei, Jane L. Cercena