JPS542276A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Dynamic membrane and preparation thereof
Assignee: Mitsubishi Chemical Corp
•
Filing: 1977-06-08
•
Granted: —
•
Expires: 1997-06-08
Abstract
Abstract PURPOSE: To prepare dynamic membrane of high salt-removal ratio which can be used for the same purpose as usual reverse osmotic membrane or ultrafiltrating membrane, by deposition of alumina sol or alkali metal aluminate and water soluble high polymer molecules on a porous support. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Hiroshi Takahashi
- 👤 Manabu Igawa
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-03 00:59
CPC Classifications
—
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3743595A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.