Patents Assigned to Nano-Tex, LLC
  • Patent number: 6872424
    Abstract: The present invention relates to textile treatment compositions for imparting desirable characteristics durably to textile fibers and fabrics, including softness, hydrophobicity, oleophobicity, surface lubricity, abrasion resistance, tear resistance, improved drape, and pilling resistance. More particularly, in one embodiment, the invention is directed to preparations that comprise a carboxylate-functionalized fluorinated polymer and a catalyst that is capable of forming reactive anhydride rings between carboxyl groups on the polymer. In another embodiment, the invention is directed to preparations comprising a polymeric softener having at least one anhydride functional group or at least one reactive group capable of forming an anhydride functional group, together with a catalyst for forming anhydrides from the reactive group or groups. In either embodiment, the resulting reactive anhydride rings bind to substrates, such as textiles and other webs, having free sulfhydryl, alcohol, or amine groups.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: March 29, 2005
    Assignee: Nano-Tex, LLC
    Inventors: Matthew R. Linford, David S. Soane, David A. Offord, William Ware, Jr.
  • Patent number: 6855772
    Abstract: The present invention is directed to polymeric treatment preparations for textiles and other fibrous substrates that impart water and oil repellency to fibers, yarns, textiles, or other fibrous substrates. More particularly, this invention comprises an aqueous solution, emulsion or suspension of (a) a fluorinated polymer that contains reactive groups that can complex with metal atoms that have a formal charge of 2 or greater, and (b) one or more metal atoms that have a formal charge of 2 or greater. The invention is further directed to the process for treating fibrous substrates with textile preparations in one step that provide water/soil repellency that is durable to repeated cleanings and to abrasion. This invention is further directed to the yarns, fibers, fabrics, textiles, webs, finished goods, or nonwovens (encompassed herein under the terms “textiles” and “fibrous substrates”) treated with the textile-reactive water- and soil-resistant preparation of the invention.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: February 15, 2005
    Assignee: Nano-Tex, LLC
    Inventors: Matthew L. Linford, David S. Soane, David A. Offord
  • Publication number: 20040194224
    Abstract: This invention is directed to a finishing method and composition for greatly increasing the tear strength and flex abrasion resistance of durable press cellulosic (including cotton) fabric, without sacrificing its durable press properties.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 7, 2004
    Applicant: Nano-Tex, LLC
    Inventor: David A. Offord
  • Publication number: 20040055093
    Abstract: The present invention is directed to a method for treating a synthetic, man-made or natural fiber substrate to create a permanently attached protein sheath around each fiber of the substrate. Such a treatment gives a composite substrate that exhibits the most desirable characteristics of the fiber core coupled with the most desirable characteristics of the protein sheath. It is also possible to apply this technology to individual synthetic fibers or yarns, if desired, before weaving, knitting, stitch-bonding or other method of woven or non-woven substrate formation.
    Type: Application
    Filed: July 21, 2003
    Publication date: March 25, 2004
    Applicant: Nano-Tex, LLC
    Inventors: David A. Offord, William Ware, Dan B. Millward, David S. Soane, Manfred A. Young
  • Publication number: 20040048541
    Abstract: The present invention is directed to a method for treating a synthetic, man-made, or natural fiber substrate to create a permanently attached carbohydrate sheath around the fibers of the substrate. Such a treatment gives a composite fibrous substrate that exhibits the most desirable characteristics of the fiber core coupled with the most desirable characteristics of the carbohydrate sheath. It is also possible to apply this technology to individual synthetic fibers or yarns, if desired, before weaving, knitting, stitch-bonding or other method of woven or non-woven substrate formation.
    Type: Application
    Filed: July 21, 2003
    Publication date: March 11, 2004
    Applicant: Nano-Tex, LLC
    Inventors: David A. Offord, William Ware, Dan B. Millward, David S. Soane, Manfred A. Young
  • Patent number: 6679924
    Abstract: This invention is directed to treatments for dyed textile goods that will improve their fastness properties. More particularly, the invention is directed to certain fixatives that, when placed on the dyed textile, allow the dye to be permanently or substantially permanently affixed to the fabric. The dye-reactive fixative comprises a water-soluble or water-dispersible polymer or oligomer having reactive groups that react with a dye on a dyed web to affix the dye to the web.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 20, 2004
    Assignee: Nano-Tex, LLC
    Inventors: William Ware, Jr., David S. Soane, Dan B. Millward, Matthew R. Linford
  • Patent number: 6638984
    Abstract: The present invention is directed to thermo-expandable microspheres and to the expanded microballoons, microcellular foam or foamed composite material that results upon heating the microspheres. The thermo-expandable microsphere of the present invention is characterized by having a polymeric wall surrounding one or more pockets or particles of blowing agent or propellant within the microsphere. The polymeric wall may have reactive functional groups on its surface to give a fusible microsphere. When the microspheres are heated, they expand to form microballoons comprising polymeric shells surrounding one or more internal gaseous voids, and when the microspheres are expanded while in contact with each other, a microcellular foam may be formed. The foam consists of a plurality of microballoons fused together, optionally aided by functional groups present on the surface of the heated microspheres that act to crosslink the material.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: October 28, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, Michael R. Houston
  • Patent number: 6617364
    Abstract: The present invention is directed to thermo-expandable microspheres and to the expanded microballoons, microcellular foam or foamed composite material that results upon heating the microspheres. The thermo-expandable microsphere of the present invention is characterized by having a polymeric wall surrounding one or more pockets or particles of blowing agent or propellant within the microsphere. The polymeric wall may have reactive functional groups on its surface to give a fusible microsphere. When the microspheres are heated, they expand to form microballoons comprising polymeric shells surrounding one or more internal gaseous voids, and when the microspheres are expanded while in contact with each other, a microcellular foam may be formed. The foam consists of a plurality of microballoons fused together, optionally aided by functional groups present on the surface of the heated microspheres that act to crosslink the material.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: September 9, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, Michael R. Houston
  • Patent number: 6617267
    Abstract: Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. Multifunctional molecules for use in modifying the surfaces of materials such as textile fibers, yarns and other fabrics made of or, including cotton, wool and nylon, are provided. The multifunctional molecules can include hydrophobic regions and/or hydrophilic regions. The multifunctional molecules also may include binding functional groups that permit either non-covalent or covalent binding to the material being modified, thus permitting the multifunctional molecule to form a non-covalent or covalent coating on the material.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: September 9, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, David A. Offord
  • Patent number: 6617268
    Abstract: This invention is directed to methods for the treatment of cellulose-containing fibers and yarn to provide protection to the cellulose from attack by enzymes. The method comprises the steps of exposing cellulose-containing fibers and yarn to an aqueous solution of an enzyme-repelling chemical to give the fibers or yarn a protective coating, and using the protectively coated fibers and yarn to prepare cloth or fabric. In another embodiment, the method of the invention comprises the step of exposing a fabric comprising cellulose-containing yarn to an aqueous solution of an enzyme-repelling chemical to give the fabric a protective coating. The invention also encompasses cellulose-containing fibers and yarn, including cotton, having a protective enzyme-repelling coating. The invention is further directed to denim fabric comprising cotton fill yarn having a protective enzyme-repelling coating.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 9, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David A. Offord, David S. Soane, William Ware, Jr., Matthew R. Linford
  • Patent number: 6607994
    Abstract: This invention is directed to preparations useful for the permanent or substantially permanent treatment of textiles and other webs. More particularly, the preparations of the invention comprise an agent or other payload surrounded by or contained within a polymeric encapsulator that is reactive to webs, to give textile-reactive nanoparticles. By “textile-reactive” is meant that the payload nanoparticle will form a chemical covalent bond with the fiber, yarn, fabric, textile, finished goods (including apparel), or other web or substrate to be treated. The polymeric encapsulator of the payload nanoparticle has a surface that includes functional groups for binding or attachment to the fibers of the textiles or other webs to be treated, to provide permanent attachment of the payload to the textiles. Alternatively, the surface of the nanoparticle includes functional groups that can bind to a linker molecule that will in turn bind or attach the nanoparticle to the fiber.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: August 19, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, David A. Offord, Matthew R Linford, Dan B. Millward, William Ware, Jr., Lael Erskine, Eric Green, Ryan Lau
  • Patent number: 6607564
    Abstract: Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. In one embodiment, a material comprising one or more modifiable functional groups is reacted with an activated hydrophobic acyl group in the presence of a hindered base, thereby to covalently attach the hydrophobic acyl group to the modifiable functional groups on the material. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. For example, materials such as cellulose may be modified by reacting it with a acid chloride or acid anhydride including a hydrophobic acyl group, in the presence of a hindered base, such as tripentylamine, to attach the hydrophobic acyl groups to the hydroxyls on the cellulose, thereby to increase the hydrophobicity of the cellulose.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: August 19, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, David A. Offord
  • Publication number: 20030145397
    Abstract: This invention is directed to treatments for dyed textile goods that will improve their fastness properties. More particularly, the invention is directed to certain fixatives that, when placed on the dyed textile, allow the dye to be permanently or substantially permanently affixed to the fabric. The dye-reactive fixative comprises a water-soluble or water-dispersible polymer or oligomer having reactive groups that react with a dye on a dyed web to affix the dye to the web.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 7, 2003
    Applicant: Nano-Tex, LLC
    Inventors: William Ware, David S. Soane, Dan B. Millward, Matthew R. Linford
  • Patent number: 6599327
    Abstract: Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. In one embodiment, a material comprising one or more modifiable functional groups is reacted with an activated hydrophobic acyl group in the presence of a hindered base, thereby to covalently attach the hydrophobic acyl group to the modifiable functional groups on the material. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. For example, materials such as cellulose may be modified by reacting it with an acid chloride or acid anhydride including a hydrophobic acyl group, in the presence of a hindered base, such as tripentylamine, to attach the hydrophobic acyl groups to the hydroxyls on the cellulose, thereby to increase the hydrophobicity of the cellulose.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: July 29, 2003
    Assignee: Nano-Tex, LLC
    Inventors: David S. Soane, David A. Offord
  • Publication number: 20030101522
    Abstract: The present invention is directed to polymeric treatment preparations for textiles and other fibrous substrates that impart water and oil repellency to fibers, yarns, textiles, or other fibrous substrates. More particularly, this invention comprises an aqueous solution, emulsion or suspension of (a) a fluorinated polymer that contains reactive groups that can complex with metal atoms that have a formal charge of 2 or greater, and (b) one or more metal atoms that have a formal charge of 2 or greater. The invention is further directed to the process for treating fibrous substrates with textile preparations in one step that provide water/soil repellency that is durable to repeated cleanings and to abrasion. This invention is further directed to the yarns, fibers, fabrics, textiles, webs, finished goods, or nonwovens (encompassed herein under the terms “textiles” and “fibrous substrates”) treated with the textile-reactive water- and soil-resistant preparation of the invention.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 5, 2003
    Applicant: Nano-Tex, LLC
    Inventors: Matthew R. Linford, David S. Soane, David A. Offord
  • Publication number: 20030104134
    Abstract: The present invention is directed to polymeric treatment preparations for textiles and other fibrous substrates that impart water and oil repellency to fibers, yarns, textiles, or other fibrous substrates. More particularly, this invention comprises an aqueous solution, emulsion or suspension of (a) a fluorinated polymer that contains reactive groups that can complex with metal atoms that have a formal charge of 2 or greater, and (b) one or more metal atoms that have a formal charge of 2 or greater. The invention is further directed to the process for treating fibrous substrates with textile preparations in one step that provide water/soil repellency that is durable to repeated cleanings and to abrasion. This invention is further directed to the yarns, fibers, fabrics, textiles, webs, finished goods, or nonwovens (encompassed herein under the terms “textiles” and “fibrous substrates”) treated with the textile-reactive water- and soil-resistant preparation of the invention.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 5, 2003
    Applicant: Nano-Tex, LLC
    Inventors: Matthew L. Linford, David S. Soane, Davis A. Offord
  • Publication number: 20030101518
    Abstract: This invention is directed to fabric finishes or treatment preparations for nylon, polyester, and other textile and fibrous substrate materials that will render them hydrophilic. The finishes of the invention are comprised primarily of polymers that contain carboxyl groups, salts of carboxyl groups, or moieties that can be converted to carboxyl groups by some chemical reaction.
    Type: Application
    Filed: May 1, 2002
    Publication date: June 5, 2003
    Applicant: Nano-Tex, LLC
    Inventors: Matthew R. Linford, Ryan Lau, David S. Soane, Dan B. Millward, Eric G. Green, William Ware
  • Publication number: 20030099834
    Abstract: The present invention is directed to microemulsion techniques for rapidly preparing photochromic glass nanoparticles and to the photochromic glass nanoparticles so prepared. More particularly, the method of the invention comprises the combination of two microemulsions, one containing a water-soluble silver salt and a glass precursor and the other containing a halide salt and an initiator for glass formation, which process rapidly yields silver halide particles. This invention gives nanometer-sized silver halide particles embedded in glass, thus providing photochromic glass nanoparticles without further annealing, or at most mild annealing. These nanoparticles are valuable as added components to any macro-material that one might wish to have photochromic properties. The particles would impart photochromism while not affecting the physical properties of the material.
    Type: Application
    Filed: December 9, 2002
    Publication date: May 29, 2003
    Applicant: Nano-Tex, LLC
    Inventors: Lael L. Erskine, Dan B. Millward, David S. Soane
  • Publication number: 20030079302
    Abstract: The invention is directed to fiber-reactive polymeric dyes, which comprise a dye covalently bound to a carboxyl-containing polymer. By “fiber-reactive” is meant that the polymeric dye will form a chemical covalent bond with the fiber, textile, or web to be treated, via functional groups for binding or attachment to the fibers of the webs to be dyed. The invention also encompasses textile dye preparations comprising a solution or suspension of the fiber-reactive polymeric dye. The resulting polymeric dye preparations have improved colorfastness and retention on the textile or web fiber structure, even after a large number of washings. The textiles or webs treated with the fiber-reactive dye are also included in the invention.
    Type: Application
    Filed: December 9, 2002
    Publication date: May 1, 2003
    Applicant: Nano-Tex, LLC
    Inventors: David S. Soane, Matthew R. Linford, Ryan Lau, Eric Green
  • Patent number: 6544594
    Abstract: The present invention is directed to polymeric treatment preparations for textiles and other fibrous substrates that impart water and oil repellency to fibers, yarns, textiles, or other fibrous substrates. More particularly, this invention comprises an aqueous solution, emulsion or suspension of (a) a fluorinated polymer that contains reactive groups that can complex with metal atoms that have a formal charge of 2 or greater, and (b) one or more metal atoms that have a formal charge of 2 or greater. The invention is further directed to the process for treating fibrous substrates with textile preparations in one step that provide water/soil repellency that is durable to repeated cleanings and to abrasion. This invention is further directed to the yarns, fibers, fabrics, textiles, webs, finished goods, or nonwovens (encompassed herein under the terms “textiles” and “fibrous substrates”) treated with the textile-reactive water- and soil-resistant preparation of the invention.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: April 8, 2003
    Assignee: Nano-Tex, LLC
    Inventors: Matthew L. Linford, David S. Soane, David A. Offord