Coating processes – Foraminous product produced – Microporous coating
Patent
1994-12-23
1996-11-19
Dawson, Robert A.
Coating processes
Foraminous product produced
Microporous coating
96 14, 210490, 21050038, 210506, B05D 500, B01D 6900
Patent
active
055760570
ABSTRACT:
A method of producing a high permeable composite reverse osmosis membrane which comprises forming a polyamide type skin layer on a porous support by the process comprising a step of coating a solution A containing a compound having at least two reactive amino groups on the porous support and a step of contacting a solution B containing a polyfunctional acid halide with the coated layer of the solution A, wherein the difference between a solubility parameter of the solution A and a solubility parameter of the solution B is from 7 to 15 (cal/cm.sup.3).sup.1/2.
REFERENCES:
patent: 4661254 (1987-04-01), Zupancic et al.
patent: 4792404 (1988-12-01), Swedo et al.
patent: 4872984 (1989-10-01), Tomaschke
patent: 4950404 (1990-08-01), Chau
Encyclopedia of Polymer Science and Engineering, vol. 8, pp. 228-229, .COPYRGT.1987.
CRC Handbook of Chemistry and Physics, 59th ed., 1978-1979, pp. C-87; 260,333,459,730,731,732 and E-21.
Condensation Polymers: By Interfacial and Solution Methods, P. 103, Paul Morgan, .COPYRGT.1965.
Paul W. Morgan, J. Macromol. Sci.-Chem., A15(5), pp. 683-699 (1981), Comments on the Status and Future of Interfacial Polycondensation.
Hirose Masahiko
Ikeda Kenichi
Dawson Robert A.
Jones Kenneth M.
Nitto Denko Corporation
LandOfFree
Method of producing high permeable composite reverse osmosis mem does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing high permeable composite reverse osmosis mem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing high permeable composite reverse osmosis mem will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-539216