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:
Jan. 15, 1991
Filed:
Feb. 21, 1990
Kiyoshi Sugie, Iwakuni, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
A gas separation film comprising a perm-selective layer which is formed by reaction in situ of a Schiff base metal complex compound represented by the following formula (I) ##STR1## wherein rings A and B each represent an o-phenylene or o-naphthylene group which may be substituted by at least one group selected from the class consisting of halogen atoms and groups of the formula --X-R in which R represents a saturated or unsaturated aliphatic hydrocarbon group having not more than 22 carbon atoms and X represents a direct bond or a binding member between R and ring A or B, selected from the class consisting of --O--, --COO--, --NHCO-- and --S--, R.sub.o represents a hydrocarbon group having not more than 6 carbon atoms in which adjacent carbon atoms or adjacent carbon atoms via one carbon atom are bound to bonds a and b, and M represents a metal selected from the group consisting of Fe, Co, Cu, Ni, Mn, Cr and Zn, with a polymeric ligand.