prov:value
| - For example, the polar agents can be in the form of discrete particles and the apolar agents can be in the form of a fibrous structure, wherein the discrete particles of the polar agents are embedded, coatedon, impregnated in, or bound to a fibrous substrate, such as a non-woven fibrous web.One form of polar agent comprises one of formula: (YaOb) (wherein Y is Si, Al, Ti, P), a is an integer from
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