Orthopedic casts with controlled flexibility
AssigneeEbi, LLC
InventorsRoy A. Morris, Jose A. Alvarez
Life of this patent
Estimating the term…
Abstract
An orthopedic casting material comprising a substrate impregnated with a water-curable resin comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to about 10%. Preferably the free NCO level is from about 7% to about 8%. Preferably the polyol has a molecular weight of at least 2,000, and a hydroxyl number of from about 28 to about 56, preferably from about 35 to about 40. The casting material may be packaged as a kit with a casting aid comprising a substrate impregnated with a lubricating material.
Claims19
An orthopedic casting material comprising a substrate impregnated with a water-curable prepolymer comprising an aromatic polyisocyanate and a polyol, wherein the free NCO level of said prepolymer is from about 6% to about 10%.
An orthopedic casting material comprising a substrate impregnated with a water-curable resin comprising an aromatic polyisocyanate and a polyalkylene ether polyol having a molecular weight of at least about 2,000, wherein the free NCO level of said prepolymer is from about 7% to about 8% and wherein said prepolymer is essentially free of a lubricant.
Dependencies are inferred from the claim text.