Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 17, 2010
Patent Application Number
11627651
Date Filed
January 26, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a polyurethane foam dressing material with improved moisturizing rate. More precisely, the present invention relates to a hydrophilic dressing material in which a wound contact layer (10) having a sponge structure composed of multiple open cells (12) and pores (15) passing through the cells (12) is laminated with a protective film (20). The lamination is characteristically performed at 150˜250° C. under a pressure of preferably 0.25˜1 kgf/cm2, the moisturizing rate of the wound contact layer (10) is 300˜1200% and the pore area (membrane opening) takes 10˜35% of the total cell area.
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