Unitary stratified composite

Details Unitary stratified composite Unitary stratified composite

2006-05-04

2008-12-16

Hug, Eric (Department: 1791)

Paper making and fiber liberation

Processes and products

Multi-layer waterlaid webs or sheets

C162S123000, C162S125000, C162S127000, C604S365000, C604S370000, C604S372000, C604S378000

Reexamination Certificate

active

07465373

ABSTRACT:
An unitary stratified composite composed of a first stratum and a second stratum integrally connected by a transition zone is disclosed. The first stratum serves as a liquid acquisition stratum that rapidly acquires and then transfers liquid to the second stratum. The second stratum serves to withdraw liquid from the first stratum and further severs as a temporary storage stratum. Methods for forming the unitary stratified composite are also disclosed.

REFERENCES:
patent: 6518479 (2003-02-01), Graef et al.
patent: 6521812 (2003-02-01), Graef et al.
patent: 6525240 (2003-02-01), Graef et al.
patent: 6673983 (2004-01-01), Graef et al.
patent: 6734335 (2004-05-01), Graef et al.

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