Mehrschichtige Umkehrosmose-Membran aus Polyamidharnstoff.
摘要
The present invention is directed to an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurea formed in situ by reaction of isocyanate-substituted acyl chloride and a diamine-treated microporous substrate.
申请公布号
DE69110795(D1)
申请公布日期
1995.08.03
申请号
DE1991610795
申请日期
1991.07.30
申请人
E.I. DU PONT DE NEMOURS & CO., WILMINGTON, DEL., US
发明人
ARTHUR, SAMUEL DAVID, WILMINGTON, DELAWARE 19802, US