Patents by Inventor Pai-Chuan Wu

Pai-Chuan Wu 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).

  • Publication number: 20140272356
    Abstract: Elastomeric films and laminates comprising one or more biodegradable and/or sustainable polymers are disclosed. The biodegradable and/or sustainable polymers can be added to the elastomeric film at concentrations up to about 40%, while the film still retains acceptable elastomeric properties. Methods of making elastomeric films or laminates comprising one or more biodegradable and/or sustainable polymers are also disclosed.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: CLOPAY PLASTIC PRODUCTS COMPANY, INC.
    Inventors: Frank He, Linda Lin, Leopoldo V. Cancio, Pai-Chuan Wu
  • Publication number: 20140272357
    Abstract: Polymer films comprising blends of biodegradable and/or sustainable polymer are disclosed. These films significantly reduce the amount of petroleum-based polymer in the film, while providing cost savings, processing ease and properties desired by consumers. Polymer films comprising blends of biodegradable and/or sustainable polymers that are microporous and breathable are also disclosed. The polymer films of the present invention may also be laminated to other substrates, such as nonwoven fabrics.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: CLOPAY PLASTIC PRODUCTS COMPANY, INC.
    Inventors: Frank He, Linda Lin, Leopoldo V. Cancio, Pai-Chuan Wu
  • Patent number: 8283029
    Abstract: Embodiments of a breathable multilayer microporous film comprise a first outer film layer, a second inner film layer, and a third outer film layer, wherein each film layer comprises at least one pore-forming filler and one thermoplastic polymer. Each film layer is rendered microporous and breathable by stretching each film layer having the pore-forming filler therein, wherein the first and third outer film layers have first and third maximum pore sizes, respectively, and the second inner film layer has a second maximum pore size different than the respective maximum pore sizes of the first and third outer film layers of the multilayer film. The multilayer microporous film passes ASTM F 1671-03 test.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: October 9, 2012
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Gregory K. Jones, Larry Hughey McAmish, Pai-Chuan Wu, Kenneth L. Lilly, Christopher Aaron Shelley, Mark Andrew Wendorf
  • Publication number: 20100159776
    Abstract: Embodiments of a breathable multilayer microporous film comprise a first outer film layer, a second inner film layer, and a third outer film layer, wherein each film layer comprises at least one pore-forming filler and one thermoplastic polymer. Each film layer is rendered microporous and breathable by stretching each film layer having the pore-forming filler therein, wherein the first and third outer film layers have first and third maximum pore sizes, respectively, and the second inner film layer has a second maximum pore size different than the respective maximum pore sizes of the first and third outer film layers of the multilayer film. The multilayer microporous film passes ASTM F 1671-03 test.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 24, 2010
    Applicant: CLOPAY PLASTIC PRODUCTS COMPANY
    Inventors: Gregory K. Jones, Larry Hughey McAmish, Pai-Chuan Wu, Kenneth L. Lilly, Christopher Aaron Shelley, Mark Andrew Wendorf
  • Patent number: 7740469
    Abstract: Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of the stretched film and impart desirable mechanical properties thereto such as film products with a high modulus for handling and suitable tensile for softness.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 22, 2010
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Leopoldo V. Cancio, Thomas G. Mushaben, Robert M. Mortellite, Pai-Chuan Wu
  • Patent number: 7674733
    Abstract: In one embodiment, a breathable, incrementally stretched elastic composite material comprises an inner elastomeric film extrusion-laminated to an outer nonwoven web at each film surface. The inner elastomeric film has a random pattern of incremental stretch-formed macroholes therein and is substantially free of pore-forming filler. In another embodiment, a breathable, incrementally stretched elastic composite material comprises an elastomeric film extrusion-laminated to a nonwoven web at one or both of the film surfaces. The elastomeric film has a random pattern of incremental stretch-formed macroholes therein and is substantially free of pore-forming filler. Methods of manufacturing the composite materials comprise extrusion laminating and incremental stretching. Garments and disposable articles are formed at least in part from the composite material.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: March 9, 2010
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Pai-Chuan Wu, Dale Eugene Robinson, Richard Arnold Bradford
  • Patent number: 7629042
    Abstract: Multilayer microporous films comprise first and second microporous film layers. The first film layer has a first maximum pore size and the second film layer has a second maximum pore size different from the first maximum pore size. In a more specific embodiment, the multilayer microporous films comprise coextruded first, second and third microporous film layers. One of the first, second and third film layers has a maximum pore size smaller than the respective maximum pore sizes of the remaining layers of the multilayer film or larger than the respective maximum pore sizes of the remaining layers of the multilayer film, and the one layer does not have an unconstrained surface in the multilayer film. Methods for producing multilayer microporous films provide a first film layer having a maximum pore size upon stretching which is different from that of a second film layer upon stretching.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 8, 2009
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Gregory K. Jones, Larry Hughey McAmish, Pai-Chuan Wu, Kenneth L. Lilly, Christopher Aaron Shelley, Mark Andrew Wendorf
  • Publication number: 20090029114
    Abstract: Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of the stretched film and impart desirable mechanical properties thereto such as film products with a high modulus for handling and suitable tensile for softness.
    Type: Application
    Filed: September 18, 2008
    Publication date: January 29, 2009
    Inventors: Leopoldo V. Cancio, Thomas G. Mushaben, Robert M. Mortellite, Pai-Chuan Wu
  • Patent number: 7442332
    Abstract: Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of the stretched film and impart desirable mechanical properties thereto such as film products with a high modulus for handling and suitable tensile for softness.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: October 28, 2008
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Leopoldo V. Cancio, Thomas G. Mushaben, Robert M. Mortellite, Pai-Chuan Wu
  • Publication number: 20050248051
    Abstract: Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of the stretched film and impart desirable mechanical properties thereto such as film products with a high modulus for handling and suitable tensile for softness.
    Type: Application
    Filed: May 4, 2004
    Publication date: November 10, 2005
    Inventors: Leopoldo Cancio, Thomas Mushaben, Robert Mortellite, Pai-Chuan Wu
  • Patent number: 6951591
    Abstract: Laminates of thermoplastic films and nonwoven fibrous webs are made at high speeds on the order of about 700 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled to make breathable laminates at high speeds. Air cooling devices cause the air to flow substantially parallel to the extruded plastic web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 4, 2005
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Robert M. Mortellite, Thomas G. Mushaben, Pai-Chuan Wu
  • Patent number: 6740184
    Abstract: Thermoplastic film, microporous film, and laminates thereof, are made at high speeds on the order of about 500 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled by air cooling devices which cause the air to flow substantially parallel to the extruded web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 25, 2004
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Robert M. Mortellite, Thomas G. Mushaben, Pai-Chuan Wu
  • Patent number: 6656581
    Abstract: Non-embossed film products permeable to moisture vapor and which act as barriers to liquid are made by a high speed method. The microporous products have high moisture vapor transmission rates (MVTRs) on the order of about 2000 to about 4500 gms/m2/day according to ASTM E96E.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: December 2, 2003
    Assignee: Clopay Plastic Products Company, Inc.
    Inventors: Pai-Chuan Wu, Leopoldo V. Cancio
  • Publication number: 20030181120
    Abstract: In one embodiment, a breathable, incrementally stretched elastic composite material comprises an inner elastomeric film extrusion-laminated to an outer nonwoven web at each film surface. The inner elastomeric film has a random pattern of incremental stretch-formed macroholes therein and is substantially free of pore-forming filler. In another embodiment, a breathable, incrementally stretched elastic composite material comprises an elastomeric film extrusion-laminated to a nonwoven web at one or both of the film surfaces. The elastomeric film has a random pattern of incremental stretch-formed macroholes therein and is substantially free of pore-forming filler. Methods of manufacturing the composite materials comprise extrusion laminating and incremental stretching. Garments and disposable articles are formed at least in part from the composite material.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Inventors: Pai-Chuan Wu, Dale Eugene Robinson, Richard Arnold Bradford
  • Publication number: 20030145938
    Abstract: Laminates of thermoplastic films and nonwoven fibrous webs are made at high speeds on the order of about 700 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled to make breathable laminates at high speeds. Air cooling devices cause the air to flow substantially parallel to the extruded plastic web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.
    Type: Application
    Filed: September 30, 2002
    Publication date: August 7, 2003
    Inventors: Robert M. Mortellite, Thomas G. Mushaben, Pai-Chuan Wu
  • Publication number: 20030047271
    Abstract: Microembossed film products permeable to moisture vapor and which act as barriers to liquid are made by a high speed method. The microembossed microporous films have impact strengths greater than 150 grams according to ASTM D-1709 and high moisture vapor transmission rates (MVTRs) on the order of about 1000 to about 4500 gms/m2/day according to ASTM E96E.
    Type: Application
    Filed: April 13, 2000
    Publication date: March 13, 2003
    Inventors: Pai-Chuan Wu, Leopoldo V. Cancio
  • Publication number: 20030041952
    Abstract: Thermoplastic film, microporous film, and laminates thereof, are made at high speeds on the order of about 500 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled by air cooling devices which cause the air to flow substantially parallel to the extruded web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.
    Type: Application
    Filed: October 17, 2002
    Publication date: March 6, 2003
    Applicant: Clopay Plastic Products Company, Inc.
    Inventors: Robert M. Mortellite, Thomas G. Mushaben, Pai-Chuan Wu
  • Publication number: 20030035943
    Abstract: Multilayer microporous films comprise first and second microporous film layers. The first film layer has a first maximum pore size and the second film layer has a second maximum pore size different from the first maximum pore size. In a more specific embodiment, the multilayer microporous films comprise coextruded first, second and third microporous film layers. One of the first, second and third film layers has a maximum pore size smaller than the respective maximum pore sizes of the remaining layers of the multilayer film or larger than the respective maximum pore sizes of the remaining layers of the multilayer film, and the one layer does not have an unconstrained surface in the multilayer film. Methods for producing multilayer microporous films provide a first film layer having a maximum pore size upon stretching which is different from that of a second film layer upon stretching.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 20, 2003
    Inventors: Gregory K. Jones, Larry Hughey McAmish, Pai-Chuan Wu, Kenneth L. Lilly, Christopher Aaron Shelley, Mark Andrew Wendorf
  • Publication number: 20030005999
    Abstract: Non-embossed film products permeable to moisture vapor and which act as barriers to liquid are made by a high speed method. The microporous products have high moisture vapor transmission rates (MVTRs) on the order of about 2000 to about 4500 gms/m2/day according to ASTM E96E.
    Type: Application
    Filed: January 10, 2000
    Publication date: January 9, 2003
    Inventors: Pai-Chuan Wu, Leopoldo V. Cancio
  • Publication number: 20020112809
    Abstract: Laminates of thermoplastic films and nonwoven fibrous webs are made at high speeds on the order of about 700 fpm to about 1200 fpm. Bond strengths of film and nonwoven laminates are effectively controlled to make breathable laminates at high speeds. Air cooling devices cause the air to flow substantially parallel to the extruded plastic web during drawdown and provide a plurality of cooling air vortices to effectively cool the web. Film gauge control is also achieved by the method.
    Type: Application
    Filed: January 21, 2000
    Publication date: August 22, 2002
    Inventors: Robert M. Mortellite, Thomas G. Mushaben, Pai-Chuan Wu