Patents Assigned to Ahlstrom Nonwovens LLC
  • Spunbonded heat seal material
    Patent number: 8216411
    Abstract: Disclosed is a nonwoven web material comprising thermoplastic fibers or filaments and a method of manufacture thereof. The web material has properties desirable for use on machinery having conventional heat sealing stations. Also, disclosed is a nonwoven infusion web material comprising thermoplastic fibers or filaments and a method of manufacture thereof. The infusion web material has properties desirable for use in making infusion packages.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 10, 2012
    Assignee: Ahlstrom Nonwovens LLC
    Inventors: Helen Viazmensky, John M. Allen, Richard T. Giovannoni
  • Spunbonded heat seal material
    Patent number: 7935646
    Abstract: Disclosed is a nonwoven web material (10) comprising thermoplastic fibers or filaments and a method of manufacture thereof. The web material has properties desirable for use on machinery having conventional heat sealing stations (26). Also, disclosed is a nonwoven infusion web material comprising thermoplastic fibers or filaments and a method of manufacture thereof. The infusion web material has properties desirable for use in making infusion packages.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: May 3, 2011
    Assignee: Ahlstrom Nonwovens LLC
    Inventors: Helen Viazmensky, John M. Allen, Richard T. Giovannoni
  • Disposable nonwoven wiping fabric and method of production
    Patent number: 7732357
    Abstract: Disclosed is a fibrous nonwoven web material and a method of manufacture thereof. The fibrous nonwoven web material includes natural cellulose fibers, manmade cellulose fibers and synthetic fibers. The manmade cellulose fibers are preferably high crystallinity cellulose fibers. The fibrous nonwoven web material has appreciable wet strength yet is capable of dispersing in most aqueous environments with only mild agitation. The fibrous nonwoven web material can be wet laid from an aqueous dispersion of fibers.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: June 8, 2010
    Assignee: Ahlstrom Nonwovens LLC
    Inventors: Vaughan R Annis, Margaret Anne McDade