Patents by Inventor Pierre D. Grondin
Pierre D. Grondin 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).
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Publication number: 20220145503Abstract: A nonwoven fabric useful as a component in a personal hygiene product and a nonwoven personal hygiene component, which is substantially free or free of non-ribbon shaped (e.g., round-shaped) spunbond fibers and includes a meltblown layer between and in direct contact with ribbon-shaped spunbond layers. The meltblown layer has a basis weight of at least about 0.008 gsm and not greater than about 5 gsm, and the nonwoven fabric or component has a basis weight of at least about 8 gsm and not greater than about 40 gsm, a pore size of less than or equal to about 27 microns when measured at 10% of cumulative filter flow. The nonwoven fabric also can have a low surface tension liquid strike through flow of less than 0.9 ml per second, a ratio of low surface tension liquid strike through flow to air permeability of greater than or equal to about 0.016, or both. Personal hygiene articles can incorporate the nonwoven fabric or component.Type: ApplicationFiled: January 28, 2022Publication date: May 12, 2022Inventors: Carlton F. Dwiggins, Pierre D. Grondin, Ralph A. Moody, III, John F. Steffen
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Patent number: 11274384Abstract: A nonwoven fabric useful as a component in a personal hygiene product and a nonwoven personal hygiene component, which is substantially free or free of non-ribbon shaped (e.g., round-shaped) spunbond fibers and includes a meltblown layer between and in direct contact with ribbon-shaped spunbond layers. The meltblown layer has a basis weight of at least about 0.008 gsm and not greater than about 5 gsm, and the nonwoven fabric or component has a basis weight of at least about 8 gsm and not greater than about 40 gsm, a pore size of less than or equal to about 27 microns when measured at 10% of cumulative filter flow. The nonwoven fabric also can have a low surface tension liquid strike through flow of less than 0.9 ml per second, a ratio of low surface tension liquid strike through flow to air permeability of greater than or equal to about 0.016, or both. Personal hygiene articles can incorporate the nonwoven fabric or component.Type: GrantFiled: August 8, 2011Date of Patent: March 15, 2022Assignee: AVINTIV Specialty Materials Inc.Inventors: Carlton F. Dwiggins, Pierre D. Grondin, Ralph A. Moody, III, John F. Steffen
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Publication number: 20150275404Abstract: A fiber defined by a surface having a concentration of antimicrobial and a center having another concentration of antimicrobial is provided. The concentration of antimicrobial at the surface of the fiber is greater than the concentration of antimicrobial at the center of the fiber. Nonwovens manufactured from the fiber are also provided. The antimicrobial may include an antimicrobial heat labile component in conjunction with a carrier.Type: ApplicationFiled: March 25, 2015Publication date: October 1, 2015Applicants: POLYMER GROUP, INC., TRIOCIDE, INC.Inventors: Sven Krister Erlandsson, Frank M. Fosco, JR., Ralph A. Moody, III, Pierre D. Grondin, John Frederick Steffen
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Patent number: 8426671Abstract: A liquid management layer constructed from large diameter uncrimped fibers in the form of a spunbond nonwoven web is described. Embodiments of the liquid management layer can include a plurality of thermoplastic fibers in the form of a spunbond nonwoven web where the plurality of thermoplastic fibers are randomly oriented and uncrimped, where the liquid management layer has a maximum void volume of 25 cc/g and a web density of at least 0.05 g/cc, where the liquid management layer has a maximum thickness of 1.5 mm, a basis weight of at least 30 g/m2 and a rewet value of less than 0.4 g according to test method WSP 70.8, and where the liquid management layer has an average fiber diameter of at least 40 microns based on the number of thermoplastic fibers in the liquid management layer and where less than 10% by count of the plurality of thermoplastic fibers in the liquid management layer have an absolute fiber diameter less than 30 microns.Type: GrantFiled: February 11, 2011Date of Patent: April 23, 2013Assignee: Polymer Group, Inc.Inventors: John F. Steffen, Pierre D. Grondin, Ralph A. Moody, III
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Publication number: 20130041335Abstract: A nonwoven fabric useful as a component in a personal hygiene product and a nonwoven personal hygiene component, which is substantially free or free of non-ribbon shaped (e.g., round-shaped) spunbond fibers and includes a meltblown layer between and in direct contact with ribbon-shaped spunbond layers. The meltblown layer has a basis weight of at least about 0.008 gsm and not greater than about 5 gsm, and the nonwoven fabric or component has a basis weight of at least about 8 gsm and not greater than about 40 gsm, a pore size of less than or equal to about 27 microns when measured at 10% of cumulative filter flow. The nonwoven fabric also can have a low surface tension liquid strike through flow of less than 0.9 ml per second, a ratio of low surface tension liquid strike through flow to air permeability of greater than or equal to about 0.016, or both. Personal hygiene articles can incorporate the nonwoven fabric or component.Type: ApplicationFiled: August 8, 2011Publication date: February 14, 2013Applicant: POLYMER GROUP, INC.Inventors: Carlton F. Dwiggins, Pierre D. Grondin, Ralph A. Moody, III, John F. Steffen
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Publication number: 20120209233Abstract: A liquid management layer constructed from large diameter uncrimped fibers in the form of a spunbond nonwoven web is described. Embodiments of the liquid management layer can include a plurality of thermoplastic fibers in the form of a spunbond nonwoven web where the plurality of thermoplastic fibers are randomly oriented and uncrimped, where the liquid management layer has a maximum void volume of 25 cc/g and a web density of at least 0.05 g/cc, where the liquid management layer has a maximum thickness of 1.5 mm, a basis weight of at least 30 g/m2 and a rewet value of less than 0.4 g according to test method WSP 70.8, and where the liquid management layer has an average fiber diameter of at least 40 microns based on the number of thermoplastic fibers in the liquid management layer and where less than 10% by count of the plurality of thermoplastic fibers in the liquid management layer have an absolute fiber diameter less than 30 microns.Type: ApplicationFiled: February 11, 2011Publication date: August 16, 2012Applicant: POLYMER GROUP, INC.Inventors: John F. Steffen, Pierre D. Grondin, Ralph A. Moody, III
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Patent number: 7968480Abstract: Nonwoven polymer materials and articles made therefrom. Materials of the invention include at least one nonwoven polymer web with at least one layer of at least about 50% by weight of a multi-lobal fiber. Materials and articles of the invention have improved properties, such as particle retention capacity, acoustic absorption, stiffness, crop color uniformity, and crop yield, when compared with nonwoven polymer materials and articles made with round fiber in place of all of the multi-lobal fiber.Type: GrantFiled: February 14, 2007Date of Patent: June 28, 2011Assignee: Polymer Group, Inc.Inventors: Nyle Bishop, Enrique Martinez, Pierre D. Grondin, Michel Delattre, Jorge Santisteban
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Publication number: 20090246492Abstract: Nonwoven polymer materials and articles made therefrom. Materials of the invention include at least one nonwoven polymer web with at least one layer of at least about 50% by weight of a multi-lobal fiber. Materials and articles of the invention have improved properties, such as particle retention capacity, acoustic absorption, stiffness, crop color uniformity, and crop yield, when compared with nonwoven polymer materials and articles made with round fiber in place of all of the multi-lobal fiber.Type: ApplicationFiled: February 14, 2007Publication date: October 1, 2009Applicant: POLYMER GROUP, INC.Inventors: Nyle Bishop, Enrique Martinez, Pierre D. Grondin, Michel Delattre, Jorge Santisteban
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Publication number: 20040072492Abstract: The present invention is directed to a process for producing continuous filament nonwoven fabric which comprises the steps of providing a single polymeric resin having an MFR of between about 6 to 16, spinning said single polymeric resin using commercially available continuous filament spinning equipment, to yield a continuous filament nonwoven fabric exhibiting a tensile strength improvement of at least 30% when compared to similar resin of greater than 35 MFR.Type: ApplicationFiled: September 17, 2002Publication date: April 15, 2004Applicant: Polymer Group Inc.Inventors: Valeria Griep Erdos, Pierre D. Grondin, Paul A. Kamnikar
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Publication number: 20030087573Abstract: The present invention is directed to a process for producing continuous filament nonwoven fabric which comprises the steps of providing a single polymeric resin having an MFR of between about 6 to 16, spinning said single polymeric resin using commercially available continuous filament spinning equipment, to yield a continuous filament nonwoven fabric exhibiting a tensile strength improvement of at least 30% when compared to similar resin of greater than 35 MFR.Type: ApplicationFiled: February 1, 2002Publication date: May 8, 2003Applicant: Polymer Group, Inc.Inventors: Valeria Griep Erdos, Pierre D. Grondin, Paul A. Kamnikar
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Publication number: 20020132547Abstract: A nonwoven fabric/film laminate material is particularly suited for use as a “housewrap”, or in like building construction applications. The laminate material comprises a spunbond polypropylene nonwoven fabric, and a breathable, polymeric film which is extrusion-coated onto the nonwoven fabric layer. Both the fabric layer and extrusion-coating can be formed in a cost-effective manner on conventionally available processing equipment. By appropriate selection of the nonwoven fabric layer and film properties, the present laminate material acts as an effective barrier to liquid water and air infiltration, while providing desirable permeability to water vapor.Type: ApplicationFiled: January 12, 2001Publication date: September 19, 2002Inventors: Pierre D. Grondin, Paul Anthony Kamnikar, Valeria Griep Erdos, Richard James Witmeyer, Marlene Storzer, Charles Pearce