Ortho-alkylated bisanilines having fluorenylidene bridging group

Details Ortho-alkylated bisanilines having fluorenylidene bridging group Ortho-alkylated bisanilines having fluorenylidene bridging group

1990-01-29

1991-10-08

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

528344, C09B 1102, B01D 5322

Patent

active

050556169

ABSTRACT:
Diamine compounds having the structural formula: ##STR1## wherein R.sub.1 is a methyl or ethyl group, can be used in preparing various polymers which are useful components in gas separation membranes. The combined effect of specific substituents ortho to the amino groups and the fluorenylidene bridging group imparts useful properties to polymeric membranes formed with these monomers.

REFERENCES:
patent: Re30351 (1980-07-01), Hoehn
patent: 2083890 (1937-06-01), Zerweck et al.
patent: 3822202 (1974-07-01), Hoehn
patent: 4378400 (1983-03-01), Makino et al.
patent: 4705540 (1987-11-01), Hayes
patent: 4717393 (1988-01-01), Hayes
patent: 4717394 (1988-01-01), Hayes
patent: 4769399 (1988-09-01), Schenz
"Reverse Permselectivity of N.sub.2 over CH.sub.4 in Aromatic Polyimides", T. H. Kim et al., J. Appl. Poly. Sci., 34, pp. 1767-1771 (1987).
M. Salame, "Prediction of Gas Barrier Properties of High Polymers", Poly. Eng. Sci., Vol. 26, p. 1543 (1986).

Affiliated with

Also associated with

Rating

Ortho-alkylated bisanilines having fluorenylidene bridging group does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ortho-alkylated bisanilines having fluorenylidene bridging group, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ortho-alkylated bisanilines having fluorenylidene bridging group will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-258148