Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6260 Superabsorbent Polymer Containing Clay, Particulate, And Method Of Making Same - Nonwovens Industry

What are you searching for?

Sign in
Patents

Superabsorbent Polymer Containing Clay, Particulate, And Method Of Making Same

Author Image

By: Karen McIntyre

Editor, Nonwovens Industry

U.S. Patent No.: 8,222,477 B2 

Inventor(s): Michael M. Azad, Reidsville, NC, U.S.; Scott J. Smith, Greensboro, NC, U.S.; Mark Joy, Reidsville, NC, U.S.; Geoffrey Wyatt Blake, Kernersville, NC, U.S.; and Michael S. Jarman, High Point, NC, U.S.

Company: Evonik Stockhausen, LLC, Greensboro, NC, U.S.

Issued: 7/17/12

Description
A superabsorbent polymer containing clay particulate comprising: a) a superabsorbent polymer particulate comprising an intimately admixed blend of from about 90 wt % to about 99.5 wt % of a superabsorbent polymer hydrogel and from about 0.5 wt % to about 10 wt % of a clay; wherein the admixed blend is dried and comminuted into superabsorbent polymer particulate; b) wherein the superabsorbent polymer particulate of a) is surface treated with from about 0.001 wt % to about 5 wt % of a surface crosslinking agent to form a surface crosslinked superabsorbent polymer particulate; c) wherein the surface crosslinked particulate composition of b) is surface treated with from about 0.01 wt % to about 5 wt % of a multivalent salt to form the superabsorbent polymer containing clay particulate; d) wherein the superabsorbent polymer particulate composition of b), c), or b) and c) is further surface treated with from about 0.01 wt % to about 5 wt % of a cationic polymer; and wherein the superabsorbent polymer containing clay particulate has a free swell gel bed permeability of at least about 10 Darcy, as measured by the Free Swell Gel Bed Permeability Test.

Add us as a preferred source on Google

Get the latest Nonwovens Industry news, insights and analysis in your Google Search and AI experiences.

Add Nonwovens Industry as a preferred source on Google (opens in a new tab)

Keep Up With Our Content. Subscribe To Nonwovens Industry Newsletters