EP0156565A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Antipruritic compositions and plasters
Assignee: Astellas Pharma Inc
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Filing: 1985-03-07
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Granted: —
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Expires: 2005-03-07
Abstract
Abstract An antipruritic plaster comprising a backing having formed on one surface thereof a pressure-sensitive adhesive medicament layer containing (1) at least one medicament selected from glycyrrhetinic acid esters thereof, glycyrrhizin, and salts of glycyrrhizin; (2) at least one solvent for (1) selected from benzyl alcohol, phenethyl alcohol, diphenhydramine, chlorpheniramine, N-methyl-2-pyrrolidone, crotamiton, and lauric acid diethanolamide, and (3) a base comprising [a] at least one rubber compound adhesive plaster base selected from natural rubber, styrene-butadiene copolymer elastomers, and styrene-isoprene-styrene copolymer elastomers; at least one tackifying agent selected from petroleum resin, rosin, hydrogenated rosin, polybutene, and ester gum; and at least one softener selected from polybutene, liquid paraffin, higher fatty acid esters, silicone oils, and vegetable oils or [b] acrylic resin.
Inventors
- 👤 Makoto Senuma
- 👤 Shigeru Kondoh
- 👤 Tadamasa Kawase
- 👤 Yoshihiko Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 16:01
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K9/7023; A61K9/703; A61K9/7038; A61K9/7046; A61K9/7053; A61K9/7061; A61K9/7076; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/44; A61L15/58; A61L15/585; A61P; A61P17/00; A61L2300/00; A61L2300/20; A61L2300/21; A61L2300/216
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
An antipruritic plaster comprising a.backing having formed on one surface thereof a pressure-sensitive adhesive medicament layer containing (1) at least one medicament selected from glycyrrhetinic acid, esters thereof, glycyrrhizin, and salts of glycyrrhizin; (2) at least one solvent for (1) selected from benzyl alcohol, phenethyl alcohol, diphenhydramine, chlorpheniranine, N-methyl-2-pyrrolidone, crotamiton, and lauric acid diethanolamide, and (3) a base comprising [a] at least one rubber compound adhesive plaster base selected from natural rubber, styrene-butadiene copolymer elastomers, and styrene-isoprene-styrene copolymer elastomers; at least one tackifying agent selected from petroleum resin, rosin, hydrogenated rosin, polybutene, and ester gum; and at least one softener selected from polybutene, liquid paraffin, higher fatty acid esters, silicone oils, and vegetable oils or [b] acrylic resin.
Claim 2
Dependent Claim
118 words
An antipruritic plaster comprising a.backing having formed on one surface thereof a pressure-sensitive adhesive medicament layer containing (1) at least one medicament selected from glycyrrhetinic acid, esters thereof, glycyrrhizin, and salts of glycyrrhizin; (2) at least one solvent for (1) selected from benzyl alcohol, phenethyl alcohol, diphenhydramine, chlorpheniranine, N-methyl-2-pyrrolidone, crotamiton, and lauric acid diethanolamide, and (3) a base comprising [a] at least one rubber compound adhesive plaster base selected from natural rubber, styrene-butadiene copolymer elastomers, and styrene-isoprene-styrene copolymer elastomers; at least one tackifying agent selected from petroleum resin, rosin, hydrogenated rosin, polybutene, and ester gum; and at least one softener selected from polybutene, liquid paraffin, higher fatty acid esters, silicone oils, and vegetable oils or [b] acrylic resin.
Claim 3
Dependent Claim
49 words
A plaster according to claim 1 wherein the adhesive medicament layer contains 0.1 to 10% by weight of component (1), 3 to 20% by weight of component (2), together with 75 to 98.5% by weight of component (3) [a] or 65 to 98.5% by weight of component (3) [b].
Claim 4
Dependent Claim
38 words
A plaster according to claim 1 wherein the adhesive medicament layer contains 0.2 to 4% by weight of component (1), 5 to 15% by weight of component (2), and 70 to 97% by weight of component (3) [b].
Claim 5
Dependent Claim
32 words
A plaster according to claim 1 wherein the adhesive medicament layer contains glycyrrhetinic acid, diphenhydramine, crotamiton, and an acrylic resin base and optionally at least one of antibacterial, antioxidant and odorant agents.
Claim 6
Dependent Claim
113 words
An adhesive medicament mass for use in a plaster, the mass containing (1) at least one medicament selected from glycyrrhetinic acid esters thereof, glycyrrhizin, and salts of glycyrrhizin; (2) at least one solvent for (1) selected from benzyl alcohol, phenethyl alcohol, diphenhydramine, chlorpheniramine, N-methyl-2-pyrrolidone, crotamiton, and lauric acid diethanolamide, and (3) a base comprising [a] at least one rubber compound adhesive plaster base selected from natural rubber, styrene-butadiene copolymer elastomers, and styrene-isoprene-styrene copolymer elastomers; at least one tackifying agent selected from petroleum resin, rosin, hydrogenated rosin, polybutene, and ester gum; and at least one softener selected from polybutene, liquid paraffin, higher fatty acid esters, silicone oils, and vegetable oils or [b] acrylic resin.
Claim 7
Dependent Claim
113 words
An adhesive medicament mass for use in a plaster, the mass containing (1) at least one medicament selected from glycyrrhetinic acid esters thereof, glycyrrhizin, and salts of glycyrrhizin; (2) at least one solvent for (1) selected from benzyl alcohol, phenethyl alcohol, diphenhydramine, chlorpheniramine, N-methyl-2-pyrrolidone, crotamiton, and lauric acid diethanolamide, and (3) a base comprising [a] at least one rubber compound adhesive plaster base selected from natural rubber, styrene-butadiene copolymer elastomers, and styrene-isoprene-styrene copolymer elastomers; at least one tackifying agent selected from petroleum resin, rosin, hydrogenated rosin, polybutene, and ester gum; and at least one softener selected from polybutene, liquid paraffin, higher fatty acid esters, silicone oils, and vegetable oils or [b] acrylic resin.
References Cited (Backward Citations)
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