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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsRyuichi Saguchi, Kinya Ogawa, Takehiko Fukumoto, Tsugio Ogata
Estimating the term…
Provided is a sustained release preparation capable of uniformly releasing therefrom a volatile chemical for a long period of time even if the amount of a liquid chemical remaining in a tubular container of the sustained release preparation becomes small. Also provided is a container for sustained release preparation, the container being tubular and comprising two layers of outer and inner layers, the inner layer having a thickness of 0.12 to 1.2 mm and having a foamed structure permitting the soaking-up of a liquid chemical to a height of at least 25 mm by capillarity. Also provided is a container unit for sustained release preparation, the unit comprising two or more of the container combined.
A container for a sustained release preparation, the container being tubular and comprising two layers of outer and inner layers, the inner layer having a thickness of 0.12 to 1.2 mm and having a foamed structure permitting soaking-up of a liquid chemical to a height exceeding 25 mm by capillarity.
A method for producing a container unit for sustained release preparation by extrusion molding, the container unit comprising at least two tubular containers each comprising two layers of outer and inner layers, the inner layer having a thickness of 0.12 to 1.2 mm, the method comprising a step of:
Dependencies are inferred from the claim text.