TITLE: Adhesive oral bandages and oral pharmaceutical preparations.
European Patent Application EP0200508 A2

ABSTRACT:
A polycarboxylic acid or anhydride, e.g. acrylic or methacrylic acid
polymer or maleic anhydride polymer, is mixed with a vinyl acetate
polymer preferably of viscosity-average molecular weight of at least
60,000, and optionally with a base capable of neutralising the acid or
anhydride, e.g. a salt of a metal or a weak acid. The mixture in a
mutual organic or aqueous organic solvent is cast on a sheet base and
dried and peeled off to form an oral bandage, which may include a soft
film support. sThe bandage shows strong adhesion for a period of at
least 3 hours to the oral mucosa or teeth. sA topical drug can be
incorporated in the adhesive bandage, to form an oral pharmaceutical
preparation from which the drug is gradually released.

INVENTORS:
Inoue, Yuichi
Horiuchi, Tetuo
Hasegawa, Kenji
Nakashima, Koichi
Ysuyoshi, Takashi

APPLICATION NUMBER: EP19860303170
PUBLICATION DATE: 11/05/1986
FILING DATE: 04/25/1986

ASSIGNEE: NITTO ELECTRIC IND CO (JP)
SUNSTAR INC (JP)
INTERNATIONAL CLASSES: A61K9/00; A61L15/22; (IPC1-7): A61K9/70; A61L15/06
EUROPEAN CLASSES: A61K9/00M18D; A61L15/22M+C08L31/04

DOMESTIC PATENT REFERENCES:
EP0081987 Film dressing.
EP0122344 Adhesive composition.

FOREIGN REFERENCES:
GB2086224A
DE2133709A1
FR2497098A

OTHER REFERENCES:
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 45 (C-268)Ä1768Ü 26th February
1985; & JP-A-59 186 913 (TEIKOKU SEIYAKU K.K.) 23-10-1984