Plastic and nonmetallic article shaping or treating: processes – Disparate treatment of article subsequent to working,... – Effecting temperature change
Patent
1984-11-27
1986-10-14
Ivy, C. Warren
Plastic and nonmetallic article shaping or treating: processes
Disparate treatment of article subsequent to working,...
Effecting temperature change
2642358, 2642884, 2642893, 2642902, 264346, 264348, 521 27, C08J 522, B29C 5500, B29C 5512, B29D 701
Patent
active
046171630
ABSTRACT:
An ion-exchange membrane of a sheet of an organic polymer comprising a plurality of fixed anonic groups associated with cations which comprise an organic group, e.g. quaternary ammonium cations, a process in which the membrane sheet is expanded by dry stretching to increase the surface area per unit weight of the membrane, a process for its preparation, a process for converting the stretched membrane to one suitable for use in an electrolytic cell, and that use.
REFERENCES:
patent: 4000057 (1976-12-01), Mrazek et al.
patent: 4154909 (1979-05-01), Seita
patent: 4259226 (1981-03-01), Suhara
patent: 4267364 (1981-05-01), Grot
patent: 4284460 (1981-08-01), Moore
patent: 4294943 (1981-10-01), Onoue
patent: 4318785 (1982-09-01), Gunjima
patent: 4433082 (1984-02-01), Grot
Brewster, Organic Chemistry, 3d ed., Prentice-Hall Inc., N.J., 1961; pp. 697-699.
Imperial Chemical Industries plc
Ivy C. Warren
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