Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1996-06-21
1998-08-18
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
21050039, 21050041, 264 41, 524155, 524233, 524538, 524609, C08J 928
Patent
active
057959200
ABSTRACT:
A polymeric dope solution comprising a polymeric material and a mixed solvent as a solvent system for use in the preparation of an integrally skinned asymmetric membrane having a surface layer (selective surface layer) and a porous support layer, which is useful as a gas separation membrane, is disclosed. Also disclosed are a process for the preparation of the asymmetric membrane using the polymeric dope solution, and an integrally skinned dope solution prepared thereby.
The asymmetric membranes according to the present invention show good gas permeability and high permselectivity.
REFERENCES:
patent: 3133132 (1964-05-01), Loeb et al.
patent: 4230463 (1980-10-01), Henis et al.
patent: 4774039 (1988-09-01), Wrasidlo
patent: 4871494 (1989-10-01), Kesting
patent: 4880441 (1989-11-01), Kesting et al.
patent: 4902422 (1990-02-01), Pinnau et al.
patent: 5061301 (1991-10-01), Kim et al.
Journal of Polymer Science: Part C: Polymer Letters, vol. 27, pp. 187-190, 1989, R. E. Kesting, "The Solvent Size Effect: Solvents and Solvent Complexes Viewed as Transient Templates Which Control Free Volume in the Skins of Integrally-Skinned Phase Inversion Membranes".
Journal of Membrane Science, vol. 60, pp. 219-232, 1991, Yong Soo Kang, et al., "Asymmetric Membrane Formation via Innersion Precipitation Method. I. Kinetic Effect".
Jung Bumsuk
Kang Yong Soo
Kim Un Young
Foelak Morton
Korea Institute of Science and Technology
LandOfFree
Polymeric dope solution for use in the preparation of an integra does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymeric dope solution for use in the preparation of an integra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymeric dope solution for use in the preparation of an integra will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1115175