Title:
【発明の名称】活性物質の制御速度制御用装置
Document Type and Number:
Japanese Patent JP2535339
Kind Code:
B2
Abstract:
A system for the controlled-rate release of active substances, consisting of:a) a deposit-core comprising the active substance and having defined geometric form;b) a support-platform applied to said deposit-core.Said deposit-core contains, mixed with the active substance, a polymeric material having a high degree of swelling on contact with water or aqueous liquids, a gellable polymeric material, said polymeric materials being replaceable by a single polymeric material having both swelling and gelling properties, and other adjuvants able to provide the mixture with suitable characteristics for its compression and for its intake of water.Said support-platform consists of a polymeric material insoluble in aqueous liquids and partially coating said deposit-core.The intensity and duration of the swelling force of said polymeric material with a high degree of swelling constitutes the primary factor in controlling the release of the active substance.
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Inventors:
PAORO KORONBO
ARUDO RA MANA
UBARUDO KONTE
ARUDO RA MANA
UBARUDO KONTE
Application Number:
JP30187086A
Publication Date:
September 18, 1996
Filing Date:
December 19, 1986
Export Citation:
Assignee:
YAGOTETSUKU AG
International Classes:
A61K9/20; A61K9/00; A61K9/22; A61K9/24; A61K9/32; (IPC1-7): A61K9/00
Domestic Patent References:
| JP6042321A | ||||
| JP4950126A | ||||
| JP58174311A | ||||
| JP3926559B1 |
Attorney, Agent or Firm:
Yamashita