The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1988
Filed:
Dec. 10, 1986
Kaoru Kawase, Nagoya, JP;
Hiroshi Sakami, Nagoya, JP;
Kenzi Suzuki, Ohkuchimachi Yono, JP;
Shozo Iida, Nagoya, JP;
Agency of Industrial Science, Tokyo, JP;
Ministry of International Trade & Industry, Tokyo, JP;
Abstract
A microporous separating material is produced by a method which comprises preparing a mixture of (1) macromolecular quaternary ammonium salt having a quaternary amine linked to a water-soluble macromolecular compound and possessing basicity, (2) a polymer of a polyoxyethylene alkylvinyl monomer and a vinyl monomer possessing basicity, or (3) a polymer of a halogenide of a quaternary amine, i.e. a basic macromolecular compound, and at least one water-soluble macromolecular substance selected from the group consisting of cellulose, polyvinyl alcohol, polyethylene oxide, and polyacrylamide with a smectite type mineral, mixing the aforementioned mixture with an inorganic substance in a water-soluble state, drying the resulting mixture, and firing the dried mixture.