04629563 is referenced by 290 patents and cites 7 patents.

Improved ultraporous and microporous membranes are provided with an entirely reticulated structure free of large finger voids. The reticulated support structure has gradually increasing pore size which reaches a maximum of from about 10 to about 20,000 times the diameter of the skin pores at the opposite face. The skin is very thin and has controllable highly uniform skin pores of from about 0.003 to about 3.0 microns in diameter. The structure offers highly desirable properties to such membranes.

Title
Asymmetric membranes
Application Number
130566
Publication Number
4629563
Application Date
August 11, 1981
Publication Date
December 16, 1986
Inventor
Wolfgang J Wrasidlo
La Jolla
CA, US
Agent
James S Waldron
Assignee
Brunswick Corporation
IL, US
IPC
B01D 13/00
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