Water-curable supporting bandage
AssigneesAlcare Co., Ltd., San-Apro Ltd.
InventorsNobuyasu Nakasugi, Takayuki Sekine
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Abstract
A water-curable support bandage constitutes a flexible fabric coated with a water-curable polyurethane resin composition containing a polyurethane prepolymer consisting of a polyol and a polyisocyanate, a catalyst and a stabilizer, wherein the polyol contains a polyethylene glycol and a bisphenol system diol. The water-curable support bandage provides greater storage stability, working time adequate for application to a diseased or injured body part, adequate modeling time, and cures rapidly thereafter to achieve a weight bearing strength. In the polyol a polypropylene glycol can be substituted for the polyethylene glycol.
Claims15
A water-curable support bandage comprising a flexible fabric coated with water-curable polyurethane resin composition containing a polyurethane prepolymer consisting of a polyol, a polyisocyanate, a catalyst and a stabilizer, wherein said polyol contains a polyethylene glycol and a bisphenol system diol, the bisphenol system diol being the product of the reaction of a bisphenol and an oxide in the presence of a catalyst, and wherein the sum of the content of the polyethylene glycol and the content of the bisphenol system diol contained as components of said polyol is at least about 50 percent by weight based on the components of said polyol, the compounding proportion of the polyethylene glycol to the bisphenol system diol in the polyol component is from about 1:0.2 to about 1:5 parts by weight, said bandage is enclosed in a water-impermeable container and said bandage is hardenable by curing of said resin composition after immersion in water.
Dependencies are inferred from the claim text.