Method and composition for coating wounds and protecting skin using a polyether polyurethane solution
OwnerDaniel Perlmaninventor
Life of this patent
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Abstract
A solution of polyether polyurethane resin dissolved in a solvent system containing 2-methyloxolane (2-MeOX) solvent and at least one volatile co-solvent. The solution may also contain a functional amount of solubilized adhesive agent. Upon drying, the resulting protective elastic film has good adhesion to human and other animal skin. The solution penetrates vital tissue to a lesser extent than a comparable solution prepared using tetrahydrofuran solvent.
Claims20
A solution comprising
- polyether polyurethane (PEPU) resin dissolved in a solvent system comprising 2-methyloxolane (2-MeOX) solvent and at least one co-solvent.
A fluid skin covering, comprising
- a solution comprising polyether polyurethane (PEPU) resin dissolved in a solvent system comprising 2-methyloxolane (2-MeOX) solvent and at least one co-solvent applied on the skin of a human or other animal, wherein said solution dries to a protective elastic film adhered to said human or other animal skin.
A skin protection kit, comprising
- a selected volume of a solution comprising polyether polyurethane (PEPU) resin dissolved in a solvent system comprising 2-methyloxolane (2-MeOX) solvent and at least one co-solvent, wherein upon application of said solution to human or other animal skin, said solution dries to a protective elastic film adhered to said human or other animal skin;
- and
- an applicator suitable for applying said solution to said skin.
A process for selecting a skin covering solution for a particular application or set of animal skin covering applications, comprising
- varying the amount of adhesive agent in a skin covering solution to optimize adhesion of the film formed by said solution on said skin in said application, wherein said solution comprises polyether polyurethane (PEPU) resin dissolved in a mixed solvent comprising 2-methyloxolane (2-MeOX) solvent and at least one co-solvent, and a functional amount of said adhesive agent.
A process for protecting human and other animal skins comprising
- applying a solution comprising polyether polyurethane (PEPU) resin dissolved in a solvent system comprising 2-methyloxolane (2-MeOX) solvent and at least one co-solvent to said skin.
A method for making a skin covering solution, comprising
- dispersing polyether polyurethane and benzoin gum in a mixed solvent comprising 2-methyloxolane (2-MeOX) and a co-solvent that is at least as volatile as 2-MeOX and is acceptable for human skin contact.
Dependencies are inferred from the claim text.