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Charles R Mungle

from San Marcos, CA
Age ~95

Charles Mungle Phones & Addresses

  • 1245 Corte Famosa, San Marcos, CA 92069
  • 3024 Fried Ave, San Diego, CA 92122 (858) 453-3227
  • La Jolla, CA

Publications

Us Patents

Method Of Making Asymmetric Cellulose Triacetate Membranes

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US Patent:
40269787, May 31, 1977
Filed:
Jul 17, 1975
Appl. No.:
5/596883
Inventors:
Charles R. Mungle - San Diego CA
Ronald L. Fox - San Diego CA
Assignee:
The United States of America as represented by the Secretary of the
Interior - Washington DC
International Classification:
B29D 2704
B29D 2720
B01D 3900
US Classification:
264 41
Abstract:
Asymmetric cellulose triacetate semipermeable membranes cast from a solution of cellulose triacetate having an acetyl content of at least 43 percent in a solvent mixture having a ratio of dioxane to acetone of at least about 1. 5 to 1, which solution also contains a swelling agent in the form of a low molecular weight alcohol or a low molecular weight mono- or poly-basic acid. Solvent is evaporated from one surface of the cast film to form a dense gel layer and the film is immersed in water to provide an asymmetric semipermeable membrane having a high salt-rejection capability and good flux.
Charles R Mungle from San Marcos, CA, age ~95 Get Report