Ultrathin blended cellulose nitrate polymer films and their prep

Details Ultrathin blended cellulose nitrate polymer films and their prep Ultrathin blended cellulose nitrate polymer films and their prep

1988-01-29

1990-02-13

Lieberman, Allan M.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

264 41, 264298, 428220, 524 32, B01D 1300, B29C 4112

Patent

active

049006215

ABSTRACT:
Disclosed herein are free-standing, pinhole-free, ultrathin, blended, cellulose nitrate films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.

REFERENCES:
patent: 3892665 (1975-07-01), Steigelmann et al.
patent: 4155793 (1979-05-01), Salemme et al.
patent: 4279855 (1981-07-01), Ward, III

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