Patents by Inventor Scott E. Osborn
Scott E. Osborn 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: 11965275Abstract: A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.Type: GrantFiled: July 29, 2021Date of Patent: April 23, 2024Assignee: Ascend Performance Materials Operations LLCInventors: Wai-Shing Yung, Chris Schwier, Albert Ortega, Scott E. Osborn
-
Publication number: 20240074438Abstract: The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Staphylococcus aureus reduction of at least 90%, as measured by ISO 20743-13.Type: ApplicationFiled: August 17, 2023Publication date: March 7, 2024Applicant: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung, Albert Ortega
-
Patent number: 11758909Abstract: The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Staphylococcus Aureus reduction of at least 90%, as measured by ISO 20743-13.Type: GrantFiled: December 18, 2019Date of Patent: September 19, 2023Assignee: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung, Albert Ortega
-
Patent number: 11674247Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: GrantFiled: July 22, 2022Date of Patent: June 13, 2023Assignee: Ascend Performance Materials Operations LLCInventors: Wai-shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Publication number: 20230065257Abstract: The present disclosure relates to polymer resins, fibers, and yarns with permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer resin comprises a polymer having less than 2500 ppm of zinc dispersed within the polymer, less than 1000 ppm of phosphorus, wherein the weight ratio of zinc to phosphorus is at least 1.3:1 or less than 0.64:1.Type: ApplicationFiled: November 2, 2022Publication date: March 2, 2023Applicant: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung
-
Patent number: 11578438Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: GrantFiled: May 12, 2021Date of Patent: February 14, 2023Assignee: Ascend Performance Materials Operations LLCInventors: Wai-shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Publication number: 20220372681Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: ApplicationFiled: July 22, 2022Publication date: November 24, 2022Applicant: Ascend Performance Materials Operations LLCInventors: Wai-shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Patent number: 11505701Abstract: The present disclosure relates to polymer resins, fibers, and yarns with permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer resin comprises a polymer having less than 2500 ppm of zinc dispersed within the polymer, less than 1000 ppm of phosphorus, wherein the weight ratio of zinc to phosphorus is at least 1.3:1 or less than 0.64:1.Type: GrantFiled: July 12, 2019Date of Patent: November 22, 2022Assignee: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-Shing Yung
-
Patent number: 11421359Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: GrantFiled: May 21, 2020Date of Patent: August 23, 2022Assignee: Ascend Performance Materials Operations LLCInventors: Wai-shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Patent number: 11376534Abstract: A filter comprising a nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: GrantFiled: May 1, 2020Date of Patent: July 5, 2022Assignee: Ascend Performance Materials Operations LLCInventors: Wai-Shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega, Joseph L. Menner
-
Publication number: 20220046913Abstract: The present disclosure relates the polymer compositions, fibers, and yarns having near-permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer composition from 50 wt % to 99.9 wt % of a polymer, from 5 wppm to 1000 wppm of zinc, and from 0.005 wt % to 1 wt % of phosphorus, wherein fibers formed from the polymer composition demonstrate a zinc retention rate of greater than 20% when tested in a dye bath test.Type: ApplicationFiled: October 29, 2021Publication date: February 17, 2022Applicant: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung
-
Patent number: 11185071Abstract: The present disclosure relates the polymer compositions, fibers, and yarns having near-permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer composition from 50 wt % to 99.9 wt % of a polymer, from 5 wppm to 1000 wppm of zinc, and from 0.005 wt % to 1 wt % of phosphorus, wherein fibers formed from the polymer composition demonstrate a zinc retention rate of greater than 20% when tested in a dye bath test.Type: GrantFiled: December 18, 2019Date of Patent: November 30, 2021Assignee: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung
-
Publication number: 20210355617Abstract: A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.Type: ApplicationFiled: July 29, 2021Publication date: November 18, 2021Applicant: Ascend Performance Materials Operations LLCInventors: Wai-Shing Yung, Chris Schwier, Albert Ortega, Scott E. Osborn
-
Patent number: 11111614Abstract: A method for tuning characteristics of a polyamide nanofiber nonwoven comprising the step of targeting a specific average nanofiber diameter and/or a specific relative viscosity for the polyamide nanofiber nonwoven. The specific average nanofiber diameter is within a range from 100 nm to 1000 nm and/or the specific relative viscosity is within a range from 5 to 75, e.g., from 15 to 50. The process further comprises the steps of extruding a polyamide composition having a moisture content with a pressurized gas through a fiber forming channel having a channel temperature to form the polyamide nanofiber nonwoven having the target average nanofiber diameter and/or relative viscosity and controlling the moisture content, the pressure of pressurized gas, and/or the channel temperature based on the specific average nanofiber diameter and/or the specific relative viscosity.Type: GrantFiled: June 7, 2019Date of Patent: September 7, 2021Assignee: Ascend Performance Materials Operations LLCInventors: Wai-Shing Yung, Chris Schwier, Albert Ortega, Scott E. Osborn
-
Publication number: 20210262131Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: ApplicationFiled: May 12, 2021Publication date: August 26, 2021Applicant: Ascend Performance Materials Operations LLCInventors: Wai-shing YUNG, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Publication number: 20210186025Abstract: The present disclosure relates to a process for preparing fibers and/or fabrics having antimicrobial properties, the process comprising: determining an operating pressure limit; calculating an amount of zinc based on the operating pressure limit; forming a polyamide composition comprising: polyamide; and the calculated amount of zinc; forming fibers from the polyamide composition, wherein the forming is conducted at an operating pressure below the operating pressure limit.Type: ApplicationFiled: December 18, 2020Publication date: June 24, 2021Applicant: Ascend Performance Materials Operations LLCInventors: Albert ORTEGA, Wai-shing Yung, Scott E. Osborn
-
Publication number: 20200283937Abstract: A nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: ApplicationFiled: May 21, 2020Publication date: September 10, 2020Applicant: Ascend Performance Materials Operations LLCInventors: Wai-shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega
-
Publication number: 20200254371Abstract: A filter comprising a nanofiber nonwoven product is disclosed which comprises a polyamide with a relative viscosity from 2 to 330, spun into nanofibers with an average diameter of less than 1000 nanometers (1 micron). In general, the inventive products are prepared by: (a) providing a polyamide composition, wherein the polyamide has a relative viscosity from 2 to 330; (b) melt spinning the polyamide composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron, followed by (c) forming the nanofibers into the product.Type: ApplicationFiled: May 1, 2020Publication date: August 13, 2020Applicant: Ascend Performance Materials Operations LLCInventors: Wai-Shing Yung, Scott E. Osborn, Chris E. Schwier, Vikram Gopal, Albert Ortega, Joseph L. Menner
-
Publication number: 20200187494Abstract: The present disclosure relates the polymer compositions, fibers, and yarns having near-permanent antimicrobial activity, and a method of producing the same. In one embodiment, the antimicrobial polymer composition from 50 wt % to 99.9 wt % of a polymer, from 5 wppm to 1000 wppm of zinc, and from 0.005 wt % to 1 wt % of phosphorus, wherein fibers formed from the polymer composition demonstrate a zinc retention rate of greater than 20% when tested in a dye bath test.Type: ApplicationFiled: December 18, 2019Publication date: June 18, 2020Applicant: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung
-
Publication number: 20200187498Abstract: The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Staphylococcus Aureus reduction of at least 90%, as measured by ISO 20743-13.Type: ApplicationFiled: December 18, 2019Publication date: June 18, 2020Applicant: Ascend Performance Materials Operations LLCInventors: Scott E. Osborn, Wai-shing Yung, Albert Ortega