Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1977-07-29
1980-02-12
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
20415917, 20415918, 2041592, 210 23F, 210 23H, 264 41, 264232, 264331, 525331, B29D 2704
Patent
active
041883543
ABSTRACT:
Asymmetric membranes for osmosis and ultrafiltration are prepared from fluorinated polymers which are dissolved in one or more solvents, cast on a plate, allowed to evaporate and precipitated with a nonsolvent. The polymeric material can variously be modified by chemical reactions, irradiations or both. By varying the chemical and physical parameters of the preparation run, a variety of membranes can be obtained which have the most varied performances and properties.
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Bottino Aldo
Capannelli Gustavo
Munari Stelio
Uliana Claudio
Vigo Fernando
Anderson Philip
Tecneco S.p.A.
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