Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-1.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-1.php on line 5

Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-2.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-2.php on line 5

Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-3.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-3.php on line 5

Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-4.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-4.php on line 5

Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-5.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-5.php on line 5

Warning: include_once(/home/aspenxadmin/public_html/files/EIT_html_excerpt.php): failed to open stream: No such file or directory in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-6.php on line 5

Warning: include_once(): Failed opening '/home/aspenxadmin/public_html/files/EIT_html_excerpt.php' for inclusion (include_path='.:/opt/alt/php72/usr/share/pear') in /home/aspenxadmin/public_html/wp-content/themes/magzilla/framework/vc_shortcodes/module-6.php on line 5

Warning: in_array() expects parameter 2 to be array, string given in /home/aspenxadmin/public_html/wp-content/plugins/ajax-search-pro/includes/classes/actions/class-asp-indextable.php on line 156

Warning: get_class() expects parameter 1 to be object, null given in /home/aspenxadmin/public_html/wp-content/plugins/real-media-library/inc/comp/WPML.class.php on line 32
Ultrafiltration Membranes and Methods of Making | Aspen Xchange
Warning: Use of undefined constant full - assumed 'full' (this will throw an Error in a future version of PHP) in /home/aspenxadmin/public_html/wp-content/themes/magzilla/header.php on line 64


A U.S. Patent for “Ultrafiltration Membranes and Methods of Making” was awarded to MilliporeSigma on August 25th, 2020. The present invention is a multilayered, flat sheet, composite membrane produced from at least two polymer solutions, the flat sheet membrane having at least one asymmetric ultrafiltration layer in which particles having a 20 to 100 nanometer (nm) diameter are retained and at least one asymmetric microporous layer in which particles larger than 0.1 .mu.m are retained, wherein the polymer solutions include a first polymer solution that forms the at least one ultrafiltration layer and a second polymer solution that forms the at least one microporous layer… Learn More