Process for producing sheet for sustainedly releasing volatile drug
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 2, 2003
Grant Date -
N/A
app pub date -
Dec 5, 2001
filing date -
Jun 7, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for producing a sheet for sustained release of 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 another film permeable or impermeable to the volatile drug. No organic solvent or peeling film for process is used, accordingly, unlike the so far known process. Consequently, it is not necessary to provide the drying step for removing an organic solvent as well as any thermal energy. As a result, the number of production steps can be reduced considerably. In addition, since the volatile drug is homogeneously diluted in the adhesive, the volatile drug can be incorporated accurately and evenly even in an amount as small as 1 g/m.sup.2 or less. According to the process of the invention, a thinner layer containing a volatile drug can be formed.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully