US 7,538,257 B2
	Fluid wound dressing comprising partially cured polyurethane
Deborah Addison, Keasden (United Kingdom); Edward Schonfeld, Princeton, N.J. (US); Peter Wachtel, Scotch Plains, N.J. (US); and Sally-Anne Stephens, Skipton (United Kingdom)
Assigned to Systagenix Wound Management (US), Inc., Wilmington, Del. (US)
Appl. No. 10/532,520 PCT Filed Oct. 24, 2003, PCT No. PCT/GB03/04609 § 371(c)(1), (2), (4) Date Jan. 30, 2006, PCT Pub. No. WO2004/037307, PCT Pub. Date May 06, 2004.
Claims priority of provisional application 60/421085, filed on Oct. 25, 2002.
Claims priority of application No. 0303821.3 (GB), filed on Feb. 19, 2003.
Prior Publication US 2006/0142685 A1, Jun. 29, 2006
Int. Cl. A61F 13/00 (2006.01)

U.S. Cl. 602—46  [602/48; 604/304]

6 Claims

1. A fluid wound dressing composition comprising a partially cured polyurethane fluid prepared by mixing: (a) a polyurethane prepolymer comprising an isocyanate capped prepolymer with (b) a curing agent for the polyurethane prepolymer, wherein said fluid wound dressing composition comprises from about 0.1 wt% to about 4 wt% of unreacted isocyanate.