Liquid purification or separation – Filter – Material
Patent
1988-02-11
1989-08-22
Anderson, Philip
Liquid purification or separation
Filter
Material
55 16, 264 41, 264234, 2642888, 2642902, B01D 1300, C08J 928, B29D 5512
Patent
active
048593397
ABSTRACT:
Microporous, asymmetric membranes comprising syndiotactic vinylaromatic polymers having utility as membranes for ultrafiltration or reverse osmosis and a process for their production.
REFERENCES:
patent: 3567810 (1971-07-01), Baker
patent: 3896061 (1975-07-01), Tanzawa et al.
patent: 4115492 (1978-06-01), Mahoney et al.
patent: 4539256 (1985-09-01), Shipman
patent: 4680353 (1987-09-01), Ishihara et al.
Burmester Alan F.
Chau Chieh-Chun
Wessling Ritchie A.
Anderson Philip
Deline Douglas N.
The Dow Chemical Company
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