Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Nitten Pharmaceutical Co Ltd
Original Assignee
Agency of Industrial Science and Technology
Nitten Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology, Nitten Pharmaceutical Co LtdfiledCriticalAgency of Industrial Science and Technology
Priority to JP12458875ApriorityCriticalpatent/JPS5256149A/en
Publication of JPS5256149ApublicationCriticalpatent/JPS5256149A/en
Processes Of Treating Macromolecular Substances
(AREA)
Abstract
PURPOSE: A process for preparing durable active substances by introducing a high polymer having electrolytic groups or polar groups into a hydrous gel of polyvinyl alcohol, and utilizing the reduced release speed of an active material by means of the affinity of the active material for the high polymer.
COPYRIGHT: (C)1977,JPO&Japio
JP12458875A1975-10-161975-10-16Process for preparing active substances having durability
PendingJPS5256149A
(en)