Wound covering material
AssigneesKuraray Co., Ltd., Yamanouchi Pharmaceutical Co., Ltd.
InventorsToshihide Nakashima, Osamu Nakaji, Koichi Takakura, Takayoshi Suzuki
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Abstract
The present invention provides a covering material consisting essentially of a hydrophilic, water insoluble polymer (component A), a high boiling plasticizer and/or organic solvent (component B) for said component A, and an aqueous liquid (component C). Said covering material is useful as a protective covering material for forming a film or coat on the skin and/or wound surface in the treatment of burn. The material is characterized in that film or coat formation on the skin and/or wound surface can be realized in a short time.
Claims18
A protective covering material for forming a film or coat on skin and/or wound surfaces consisting essentially of a hydrophillic, water-insoluble and substantially uncrosslinked polymer in powder form (component A), polyethylene glycol (component B) and an aqueous liquid (component C),
- wherein said polymer of component A is derived from a monomer represented by the formula:
- ##STR3## wherein R.sup.1 is H or methyl, R.sup.2 is alkylene containing 2-5 carbon atoms, R.sup.3 is H, alkyl containing 1-3 carbon atoms or C.sub.2 - or C.sub.3 -alkyl substituted by amino or alkoxy of 1-3 carbon atoms and n is 1-30, at least 67% by weight of said polymer being composed of said monomer,
- wherein said component A amounts to 20-80% by weight of components A+B+C,
- said components B+C together amount to 80-20% by weight of components A+B+C, and
- said components C amounts to 20-70% by weight of components B+C.
A method of forming a film or coat on skin and/or wound surfaces, which comprises applying polyethylene glycol (component B) together with an aqueous liquid (component C), either separately or in admixture and then applying thereto a hydrophilic, water-insoluble and substantially uncrosslinked polymer in powder form (component A) so that a film or coat may be formed on said skin and/or wound surfaces,
- wherein said polymer of component A is derived from a monomer represented by the formula:
- ##STR6## wherein R.sup.1 is H or methyl, R.sup.2 is alkylene containing 2-5 carbon atoms, R.sup.3 is H, alkyl containing 1-3 carbon atoms or C.sub.2 - or C.sub.3 -alkyl substituted by amino or alkoxy of 1-3 carbon atoms and n is 1-30, at least 67% by weight of said polymer being composed of said monomer,
- wherein said component A amounts to 20-80% by weight of components A+B+C,
- said components B+C together amount to 80-20% by weight of components A+B+C, and
- said component C amounts to 20-70% by weight of components B+C.
Dependencies are inferred from the claim text.