Patents by Inventor TaHau Yu

TaHau Yu 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).

  • Process of imparting wettability to a polyolefin fiber
    Patent number: 8663517
    Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises (a) a polyolefin; and (b) at least one compound of the formula (I) R1-(hydrophilic oligomer)??(I) wherein R1 is a straight or branched chain alkyl of 22 to 40 carbon atoms and the hydrophilic oligomer is a homo- or co-oligomer consisting of monomer units derived from monomers selected from the group consisting of ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorhydrin, acrylic acid, methacrylic acid, ethylene imine, caprolactone, vinyl alcohol and vinyl acetate; and wherein the hydrophilic oligomer consists of between 2 and 10 monomer units, exhibit excellent durable wettability. The fabrics are useful in disposable diapers, training pants, feminine napkins, tampons, incontinence care products, wet and dry wipes, wound dressings, surgical capes, filter medial, battery separators and the like.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: March 4, 2014
    Assignee: Techmer PM, LLC
    Inventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
  • WETTABLE POLYOLEFIN FIBERS AND FABRICS
    Publication number: 20120270111
    Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises (a) a polyolefin; and (b) at least one compound of the formula (I) R1-(hydrophilic oligomer) ??(I) wherein R1 is a straight or branched chain alkyl of 22 to 40 carbon atoms and the hydrophilic oligomer is a homo- or co-oligomer consisting of monomer units derived from monomers selected from the group consisting of ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorhydrin, acrylic acid, methacrylic acid, ethylene imine, caprolactone, vinyl alcohol and vinyl acetate; and wherein the hydrophilic oligomer consists of between 2 and 10 monomer units, exhibit excellent durable wettability. The fabrics are useful in disposable diapers, training pants, feminine napkins, tampons, incontinence care products, wet and dry wipes, wound dressings, surgical capes, filter medial, battery separators and the like.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 25, 2012
    Applicant: TECHMER PM, LLC
    Inventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
  • Wettable polyolefin fibers and fabrics
    Patent number: 8207070
    Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises (a) a polyolefin; and (b) at least one compound of the formula (I) R1—(hydrophilic oligomer)??(I) wherein R1 is a straight or branched chain alkyl of 22 to 40 carbon atoms and the hydrophilic oligomer is a homo- or co-oligomer consisting of monomer units derived from monomers selected from the group consisting of ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorhydrin, acrylic acid, methacrylic acid, ethylene imine, caprolactone, vinyl alcohol and vinyl acetate; and wherein the hydrophilic oligomer consists of between 2 and 10 monomer units, exhibit excellent durable wettability. The fabrics are useful in disposable diapers, training pants, feminine napkins, tampons, incontinence care products, wet and dry wipes, wound dressings, surgical capes, filter medial, battery separators and the like.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 26, 2012
    Assignee: Techmer PM, LLC
    Inventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
  • Wettable polyolefin fibers and fabrics
    Publication number: 20020169429
    Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises
    Type: Application
    Filed: November 9, 2001
    Publication date: November 14, 2002
    Inventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey