High performance semipermeable composite membrane and process fo

Details High performance semipermeable composite membrane and process fo High performance semipermeable composite membrane and process fo

1982-04-14

1985-12-17

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2105002, 427245, B01D 3100

Patent

active

045591393

ABSTRACT:
A high performance semipermeable composite membrane containing a microporous substrate having a semipermeable membrane on the surface thereof. A composite ultrathin solute rejection barrier is formed on an intermediate transport layer which in turn is formed on a substrate.
A mixture of a water soluble organic polymer having reactive amino groups in terminal and/or side chains, together with a monomer or monomeric polyamine is reacted with an agent having a polyfunctional group.

REFERENCES:
patent: 4242208 (1980-12-01), Kawaguchi et al.
patent: 4244817 (1981-01-01), Yaginuma
patent: 4387024 (1983-06-01), Kurihara et al.

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