IP Library › Granted Patent US 10,982,392
Granted Patent B2
US 10,982,392 · App. 16/533,946 · Granted Apr 20, 2021

Absorbent structures with high wet strength, absorbency, and softness

Inventors: James E. Sealey (Belton, SC); Byrd Tyler Miller, IV (Easley, SC); Kevin Brennan (Anderson, SC); James E. Bradbury (Anderson, SC); Phillip MacDonald (Anderson, SC); Taras Z. Andrukh (Greenville, SC)
Assignee: STRUCTURED I, LLC
D21H21/20D21C5/005D21H17/005D21H17/375D21H17/42D21H17/55D21H27/002D21H27/005D21H27/30
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Quick Facts
Patent No.
US 10,982,392
App. No.
16/533,946
Granted
Apr 20, 2021
Kind
B2
Abstract

An absorbent structure with high wet strength, absorbency and softness made by a process including forming a stock mixture of fibers, a cationic wet strength resin, an anionic polyacrylamide and a cellulase enzyme, and at least partially drying the stock mixture to form a web.

Claims (5)

1. An absorbent structure having a CD wet tensile strength value that is at least 35% of the value of a CD dry tensile strength value of the absorbent structure, a basis weight of less than 45 gsm, and a TS750 value of less than 60 dB V 2 rms, wherein the absorbent structure is a paper towel roll product.

2. The absorbent structure of claim 1 , comprising two or more plies.

3. The absorbent structure of claim 2 , wherein each ply comprises a multi-layer web.

4. The absorbent structure of claim 1 , wherein the absorbent structure has a HF softness of at least 46.

5. The absorbent structure of claim 1 , wherein the absorbent structure is made by a Through Air Drying (TAD) process.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2021
From: SEALEY, JAMES E.; MILLER, BYRD TYLER, IV; BRENNAN, KEVIN; BRADBURY, JAMES E.; MACDONALD, PHILLIP; ANDRUKH, TARAS Z.
To: STRUCTURED I, LLC
Reel/Frame 055286/0793 →
Continuity (3)
Division 15687116 · Aug 25, 2017
Provisional Application 62380137 · Aug 26, 2016
Related Publication 20190368129A1 · Dec 5, 2019
Cited By (14)
US 12,297,598 US 12,478,224 US 12,503,297 US 12,516,475 US 12,516,476 US 12,529,191 US 12,534,854 US 12,534,855 US 12,565,737 US 12,590,413 US 12,590,418 US 12,606,961 US 12,715,682 US 12,735,246