Title:
PROCESS FOR PRODUCING SHEET FOR SUSTAINEDLY RELEASING VOLATILE DRUG
Document Type and Number:
WIPO Patent Application WO/2000/074737
Kind Code:
A1
Abstract:
A process for producing a sheet for sustainedly releasing a volatile drug, characterized by dissolving a resin serving as an adhesive in a volatile drug and using the resultant solution as a coating fluid to bond a film permeable to the volatile drug to a film permeable or impermeable to the volatile drug. The production process does not necessitate use of an organic solvent or a release film for a step unlike conventional processes. Consequently, a drying step for organic solvent removal is unnecessary and no heat energy is required. As a result, the number of production steps can be reduced considerably. Since the volatile drug is homogeneously diluted with the adhesive, the volatile drug can be precisely and evenly incorporated even in an amount as small as 1 g/m?2¿ or below. By the process, a thinner layer containing a volatile drug can be formed.
Inventors:
KATOH KAZUYA (JP)
MIZUKAMI YUICHI (JP)
MIZUKAMI YUICHI (JP)
Application Number:
PCT/JP2000/003583
Publication Date:
December 14, 2000
Filing Date:
June 02, 2000
Export Citation:
Assignee:
CAREX INC (JP)
KATOH KAZUYA (JP)
MIZUKAMI YUICHI (JP)
KATOH KAZUYA (JP)
MIZUKAMI YUICHI (JP)
International Classes:
B32B7/00; A01M1/20; A01N25/18; A01N25/34; A01N47/46; A61L9/04; A61L9/12; (IPC1-7): A61L9/12; A01N25/18; A01N25/34; A01N47/48; B29C65/48; B32B31/00; C08J5/12
Domestic Patent References:
| WO1998023159A1 | 1998-06-04 |
Foreign References:
| EP0888712A1 | 1999-01-07 | |||
| JPH10217381A | 1998-08-18 | |||
| JPH1094593A | 1998-04-14 | |||
| JPH11130609A | 1999-05-18 | |||
| JPH04102804U | 1992-09-04 |
Attorney, Agent or Firm:
Shimizu, Yoshihiro (Takadanobaba 2-chome Shinjuku-ku Tokyo, JP)
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