IP Library Granted Patent US 10,973,384
Granted Patent B2
US 10,973,384 · App. 16/545,758 · Granted Apr 13, 2021

Dispersible nonwoven wipe material

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Quick Facts
Patent No.
US 10,973,384
App. No.
16/545,758
Granted
Apr 13, 2021
Kind
B2
Abstract

A dispersible, nonwoven multistrata wipe material is provided that is stable in a wetting liquid and flushable in use. More particularly, multilayered structures including, but not limited to, two, three, or four layers are provided to form the dispersible nonwoven wipe material. The layers contain combinations of cellulosic and noncellulosic fibers, and optionally a binder or additive.

Claims (16)

1. A dispersible, airlaid, multistrata nonwoven wipe material, comprising:

(a) a first layer comprising (i) from about 50 to about 95 weight percent cellulosic fibers and (ii) from about 5 to about 50 weight percent bicomponent fibers;

(b) a second layer comprising from about 75% to about 100% cellulosic fibers;

(c) carboxymethyl cellulose (CMC);

(d) a polyvalent cation containing compound; and

(e) a plasticizer,

wherein the second layer is disposed adjacent to the first layer,

wherein the wipe material is dispersible in water, and

wherein the wipe material is structurally stable in a wetting liquid.

2. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein the plasticizer comprises polyethylene glycol (PEG).

3. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein the polyvalent cation containing compound comprises a polyvalent metal salt.

4. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein at least a portion of the cellulose fiber is chemically modified in at least one layer.

5. The dispersible, airlaid, multistrata nonwoven wipe material of claim 4 , wherein the cellulose fiber comprises at least one compound selected from the group consisting of polyvalent cation containing compound, polycationic polymer, and polyhydroxy compound.

6. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein the nonwoven wipe material has a cross directional wet strength greater than about 200 gli.

7. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein the nonwoven wipe material passes an INDA Guidelines FG 512.1 Column Settling Test.

8. The dispersible, airlaid, multistrata nonwoven wipe material of claim 1 , wherein the nonwoven wipe material passes an INDA Guidelines FG 521.1 30 Day Laboratory Household Pump Test designed to assess compatibility of a flushable product in residential and commercial pumping systems.

Assignments (14)
RELEASE OF SECURITY INTEREST Recorded May 5, 2025
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
To: GLATFELTER CORPORATION; AVINTIV SPECIALTY MATERIALS, LLC; FIBERWEB, LLC; BERRY FILM PRODUCTS COMPANY, INC.; PROVIDENCIA USA, INC.
Reel/Frame 071176/0799 →
RELEASE OF SECURITY INTEREST Recorded Dec 9, 2024
From: PNC BANK, NATIONAL ASSOCIATION
To: GLATFELTER CORPORATION; PHG TEA LEAVES, INC.; MOLLANVICK, INC.; GLATFELTER COMPOSITE FIBERS NA, INC.; GLATFELTER DIGITAL SOLUTIONS, LLC; GLATFELTER HOLDINGS, LLC; GLATFELTER MT. HOLLY LLC; GLATFELTER ADVANCED MATERAILS N.A., LLC; GLATFELTER TWIG AMERICA, INC.; GLATFELTER SONTARA AMERICA, INC.; GLATFELTER SONTARA OLD HICKORY, INC.; GLATFELTER INDUSTRIES ASHEVILLE, INC.
Reel/Frame 069519/0217 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Nov 7, 2024
From: PNC BANK, NATIONAL ASSOCIATION
To: GLATFELTER CORPORATION; PHG TEA LEAVES, INC.; MOLLANVICK, INC.; GLATFELTER COMPOSITE FIBERS NA, INC.; GLATFELTER DIGITAL SOLUTIONS, LLC; GLATFELTER HOLDINGS, LLC; GLATFELTER MT. HOLLY LLC; GLATFELTER ADVANCED MATERIALS N.A., LLC; GLATFELTER TWIG AMERICAN, INC.; GLATFELTER SONTARA AMERICA, INC.; GLATFELTER SONTARA OLD HICKORY, INC.; GLATFELTER INDUSTRIES ASHEVILLE, INC.
Reel/Frame 069314/0152 →
SECURITY AGREEMENT (TERM LOAN) Recorded Nov 5, 2024
From: GLATFELTER CORPORATION; AVINTIV SPECIALTY MATERIALS, LLC; FIBERWEB, LLC; BERRY FILM PRODUCTS COMPANY, INC.; PROVIDENCIA USA, INC.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 069305/0145 →
RELEASE OF SECURITY INTERESTS AT REEL/FRAME 063205/0068 Recorded Nov 5, 2024
From: ALTER DOMUS (US) LLC, AS ADMINISTRATIVE AGENT
To: GLATFELTER CORPORATION; PHG TEA LEAVES, INC.; MOLLANVICK, INC.; GLATFELTER COMPOSITE FIBERS NA, INC.; GLATFELTER DIGITAL SOLUTIONS, LLC; GLATFELTER HOLDINGS, LLC; GLATFELTER MT. HOLLY LLC; GLATFELTER ADVANCED MATERIALS N.A., LLC; GLATFELTER TWIG AMERICA, INC.; GLATFELTER SONTARA AMERICA, INC.; GLATFELTER SONTARA OLD HICKORY, INC.; GLATFELTER INDUSTRIES ASHEVILLE, INC.
Reel/Frame 069303/0774 →
SECURITY AGREEMENT (ABL) Recorded Nov 5, 2024
From: GLATFELTER CORPORATION; AVINTIV SPECIALTY MATERIALS, LLC; FIBERWEB, LLC; BERRY FILM PRODUCTS COMPANY, INC.; PROVIDENCIA USA, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069305/0032 →
SECURITY AGREEMENT (NOTES) Recorded Nov 5, 2024
From: GLATFELTER CORPORATION; AVINTIV SPECIALTY MATERIALS, LLC; FIBERWEB, LLC; BERRY FILM PRODUCTS COMPANY, INC.; PROVIDENCIA USA, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 069305/0111 →
AMENDED AND RESTATED IP SECURITY AGREEMENT Recorded Apr 4, 2023
From: GLATFELTER CORPORATION; PHG TEA LEAVES, INC.; MOLLANVICK, INC.; GLATFELTER COMPOSITE FIBERS NA, INC.; GLATFELTER DIGITAL SOLUTIONS, LLC; GLATFELTER HOLDINGS, LLC; GLATFELTER MT. HOLLY LLC; GLATFELTER ADVANCED MATERAILS N.A., LLC; GLATFELTER TWIG AMERICA, INC.; GLATFELTER SONTARA AMERICA, INC.; GLATFELTER SONTARA OLD HICKORY, INC.; GLATFELTER INDUSTRIES ASHEVILLE, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 063250/0393 →
SECURITY INTEREST Recorded Mar 30, 2023
From: GLATFELTER CORPORATION; PHG TEA LEAVES, INC.; MOLLANVICK, INC.; GLATFELTER COMPOSITE FIBERS NA, INC.; GLATFELTER DIGITAL SOLUTIONS, LLC; GLATFELTER HOLDINGS, LLC; GLATFELTER MT. HOLLY LLC; GLATFELTER ADVANCED MATERIALS N.A., LLC; GLATFELTER TWIG AMERICA, INC.; GLATFELTER SONTARA AMERICA, INC.; GLATFELTER SONTARA OLD HICKORY, INC.; GLATFELTER INDUSTRIES ASHEVILLE, INC.
To: ALTER DOMUS (US) LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 063205/0068 →
IP SECURITY AGREEMENT Recorded Jul 27, 2022
From: GLATFELTER CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 060981/0378 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2021
From: GEORGIA-PACIFIC MT. HOLLY LLC
To: GLATFELTER CORPORATION
Reel/Frame 058153/0723 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2020
From: GEORGIA-PACIFIC NONWOVENS LLC
To: GEORGIA-PACIFIC MT. HOLLY LLC
Reel/Frame 054710/0395 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2019
From: BAKER, JOHN PERRY; CURRAN, MARIA; HURLEY, JEFFREY SCOTT; MOOSE, RONALD TIMOTHY; DUTKIEWICZ, JACEK K.; MURICA, MANUEL VIDAL; HESS, THOMAS
To: BUCKEYE TECHNOLOGIES INC.
Reel/Frame 050113/0536 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2019
From: BUCKEYE TECHNOLOGIES INC.
To: GEORGIA-PACIFIC NONWOVENS LLC
Reel/Frame 050113/0938 →