Patent
Process for preparing of semipermeable membranes
Reads0
Chats0
TLDR
In this paper, a method for the preparation of semipermeable membrane which comprises exposing porous shaped articles of polysulfone to a plasma is presented, which is very useful for separating substances by reverse osmosis or ultrafiltration.Abstract:
A method for the preparation of semipermeable membrane which comprises exposing porous shaped articles of polysulfone to a plasma. The resulting semipermeable membrane is very useful for separating substances by reverse osmosis or ultrafiltration.read more
Citations
More filters
Patent
Use of plasma polymerized organosilicon films in fabrication of lift-off masks
TL;DR: In this article, the process includes deposition of thin plasma polymerized organosilicon barrier film over a radiation insensitive polymeric base layer previously coated on a substrate, followed by thermal annealing of the plasminarized barrier layer, over which is then coated a radiation sensitive resist layer.
Patent
Composite membrane for a membrane distillation system
Dah Y. Cheng,Steve J. Wiersma +1 more
TL;DR: In this article, a composite membrane consisting of a thin lyophophilic microporous layer or membrane and a thin Lyophilic layer on both sides of the lyophilic membrane or on the distillate side is presented.
Patent
Microporous membrane filter and method of producing same
TL;DR: In this article, a process for producing a filter including a microporous membrane and a supporting structure connected thereto, including producing a mold for the membrane and the supporting structure, filling the mold with a molding material whose solubility can be changed by high energy radiation, was described.
Patent
Affinity supports for hemoperfusion
TL;DR: In this paper, a method of coating chromatographic particulate supports to provide a biocompatible outer layer of synthetic membrane-type film which prevents the release of fines but permits the adsorption of components to an affinity ligand is described.
Patent
Radiation stress relieving of sulfone polymer articles
Frisch David C,Wilhelm Weber +1 more
TL;DR: In this article, a method of rapidly relieving stress in an article comprised of a sulfone polymer is disclosed, where the article is exposed to electromagnetic radiation, for a time period sufficient to absorb enough energy to stress relieve the sulfone against stress cracking therein.
References
More filters
Patent
High flow membrane
TL;DR: In this article, the authors describe an "anisotropic high-fluctuation low-pressure" (HFL) and "an adaptive high-pressure low-pressurization" (LPLP) polyethylene (PE) polyester polypropylene (PE)-polyethylene polysilicon (PPS) polypropane (PPLA) MEMBRANE capable of being drained without loss of functionality.
Patent
Process for preparing membranes for separation of substances
TL;DR: In this article, a semipermeable membrane is obtained by casting a cast solution comprising a mixture of a water-insoluble high polymer and a water solvable high polymer.
Patent
Method of preparing water purification membranes
TL;DR: In this article, allyl amine and chemically related compounds are polymerized as thin films in the presence of a plasma discharge, and the polymerized films show outstanding advantages when used as reverse osmosis membranes.
Patent
Method for preparation of composite semipermeable membrane
TL;DR: In this paper, a SEMIPERMEABLE COMPOSITE MEMBRANE is formed by ELECTRODELESS GLOW DISCHARGE POLYMERIZATION of an ORGANIC MONOMER in the PRESENCE of a POROUS Support.
Patent
Low energy electron beam treatment of polymeric films, and apparatus therefore
TL;DR: In this article, a low energy electron beam is applied to a polymeric film to alter the permeability characteristics of the polymeric films for gases, which has enhanced utility for separating gases such as hydrogen and helium from mixtures containing same.