TITLE: ADHESIVE ORAL BANDAGES AND ORAL PHARMACEUTICAL PREPARATIONS
European Patent Application EP0200508 A3

ABSTRACT:
Abstract of EP0200508
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. <??>The bandage shows strong adhesion for a period of at
least 3 hours to the oral mucosa or teeth. <??>A 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: 07/08/1987
FILING DATE: 04/25/1986

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