US 12,303,369 B2
Absorbent laminates, absorbent cores and disposable articles utilizing the absorbent laminates, and related methods
Paul M. Ducker, Saint Simons Island, GA (US); and Harry J. Chmielewski, Wake Forest, NC (US)
Assigned to ATTENDS HEALTHCARE PRODUCTS, INC.
Appl. No. 16/466,245
Filed by ATTENDS HEALTHCARE PRODUCTS, INC., Greenville, NC (US)
PCT Filed Dec. 14, 2017, PCT No. PCT/US2017/066467
§ 371(c)(1), (2) Date Jun. 3, 2019,
PCT Pub. No. WO2018/112229, PCT Pub. Date Jun. 21, 2018.
Claims priority of provisional application 62/505,218, filed on May 12, 2017.
Claims priority of provisional application 62/434,156, filed on Dec. 14, 2016.
Prior Publication US 2020/0060895 A1, Feb. 27, 2020
Int. Cl. A61F 13/15 (2006.01); A61F 13/534 (2006.01); A61F 13/513 (2006.01); A61F 13/53 (2006.01); B32B 5/02 (2006.01); B32B 5/08 (2006.01); B32B 7/12 (2006.01)
CPC A61F 13/534 (2013.01) [A61F 13/513 (2013.01); A61F 2013/530547 (2013.01); A61F 2013/530613 (2013.01); A61F 2013/5307 (2013.01); B32B 5/022 (2013.01); B32B 5/08 (2013.01); B32B 7/12 (2013.01); B32B 2262/062 (2013.01); B32B 2307/54 (2013.01); B32B 2307/726 (2013.01); B32B 2309/105 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An absorbent laminate comprising:
a first sublayer comprising super-absorbent polymer (SAP) particles and an adhesive supporting the SAP particles in a porous matrix;
a second sublayer comprising SAP particles and an adhesive supporting the SAP particles in a porous matrix; and
a third sublayer disposed between, and bonded to each of, the first and second layers, wherein the third sublayer is not itself a laminate, and wherein the third sublayer comprises a nonwoven web having a basis weight of from 6 gsm to 80 gsm,
wherein the basis weight of the SAP particles of the first sublayer is different than the basis weight of the SAP particles of the second sublayer,
wherein the SAP particles of one of the first sublayer or the second sublayer have a basis weight of from 20 grams per square meter (gsm) to 80 gsm, and
wherein the SAP particles of the other of the first sublayer or the second sublayer have a basis weight of less than 50 gsm.