Back to results
US 2006/0141890 A1Published application
Ultrasonic lamination
OwnerEberhard Link, Charles Mason +3inventors
InventorsEberhard Link, Charles Mason, James Frasch, Amelia Tosti, Ashutosh Karnik
Life of this patent
Estimating the term…
Abstract
The present invention is directed at the field of ultrasonic welding of flame retardant materials. In one exemplary embodiment, two layers of non-woven fabrics may be welded together to create a woven appearance and which may resemble the appearance of a woven fabric, such as that used in mattress ticking.
Claims16
A fire blocking non-woven textile structure, comprising
- a first layer and a second layer ultrasonically bonded to said first layer, said first layer having a needle-punched textile structure, comprising a first fiber component containing polyacrylonitrile copolymer with a halogen containing monomer;
- a second fiber component selected from the group consisting of a viscose fiber containing silicic acid, a regenerated cellulose fiber, a melamine/formaldehyde fiber and mixtures thereof;
- and a third fiber component selected from the group consisting of an aramid fiber, a melamine/formaldehyde fiber, a polyester fiber and mixtures thereof;
- and said second layer comprising a thermoplastic fiber.
1 more element
-56. (canceled)
Dependencies are inferred from the claim text.