IP Library Patent Application 18066753
Patent Application
App. No. 18/066,753

BICOMPONENT FABRICS

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Patent No.
US None
App. No.
18/066,753
Abstract

An AM/AV fabric comprising base fibers comprising a base polymer composition and AM/AV fibers comprising an AM/AV polymer composition comprising an AM/AV polymer and an AM/AV compound. The base fibers and the AM/AV fibers are intermingled with one another; and the fabric demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particle filtration efficiency greater than 35%.

Claims (34)

1 . An AM/AV fabric, comprising:

base fibers comprising a base polymer composition; and

AM/AV fibers comprising an AM/AV polymer composition comprising an AM/AV polymer and an AM/AV compound;

wherein base fibers and the AM/AV fibers are intermingled with one another; and

wherein the fabric demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particle filtration efficiency greater than 35%.

2 . The fabric of claim 1 , wherein the base fibers have a base fiber charge.

3 . The fabric of claim 1 , wherein the AM/AV fibers have an AM/AV fiber charge.

4 . The fabric of claim 1 , wherein the AM/AV fibers have no charge.

5 . The fabric of claim 3 , wherein the base fiber charge is less than the AM/AV fiber charge.

6 . The fabric of claim 1 , wherein the fabric, comprises greater than 25 wt% base fibers.

7 . The fabric of claim 1 , wherein the base polymer comprises polypropylene and the AM/AV polymer comprises polyamide.

8 . The fabric of claim 1 , wherein the AM/AV compound comprises zinc or copper or a combination thereof.

9 . The fabric of claim 1 , wherein the AM/AV compound comprises a zinc compound.

10 . The fabric of claim 1 , wherein the AM/AV fibers comprise a supplemental polymer different from the AM/AV polymer.

11 . The fabric of claim 1 , wherein the base polymer composition or the AM/AV polymer composition comprises a charge agent.

12 . The fabric of claim 1 , wherein the fabric demonstrates an ATI filtration efficiency greater than 20% at an 85 1pm flow rate.

13 . The fabric of claim 1 , wherein the fabric demonstrates a pressure drop greater than 1 mm H 2 O/cm 2 .

14 . The fabric of claim 1 , wherein the fabric demonstrates an air permeability greater than 20 cfm/ft 2 at a mean flow pore size of at least 7 microns.

15 . A process for producing an AM/AV fabric, the process comprising:

intermingling AM/AV fibers comprising an AM/AV polymer composition and base fibers comprising a base polymer composition and to form a fabric web;

charging the fabric web to form the AM/AV fabric;

wherein the AM/AV fabric demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particle filtration efficiency greater than 35%.

16 . The process of claim 15 , further comprising:

blowing the AM/AV polymer composition to form the AM/AV fibers; and

blowing the base polymer composition to form the base fibers;

wherein the blowing of the fibers effectuates the intermingling.

17 . The process of claim 15 , wherein the base fibers have a base fiber charge and the AM/AV fibers have an AM/AV fiber charge, and wherein the base fiber charge is less than the AM/AV fiber charge.

18 . The process of claim 15 , wherein the AM/AV fibers comprise a supplemental polymer different from the AM/AV polymer.

19 . The process of claim 15 , wherein the base polymer composition or the AM/AV polymer composition comprises a charge agent.

20 . An AM/AV fabric, comprising:

base fibers comprising a base polymer composition comprising polypropylene; and

AM/AV fibers comprising an AM/AV polymer composition comprising an AM/AV polymer comprising polyamide and an AM/AV compound comprising zinc or copper or a combination thereof and an optional supplemental polymer comprising an olefin polymer;

wherein base fibers and the AM/AV fibers are intermingled with one another; and

wherein the fabric demonstrates an Escherichia coli efficacy log reduction greater than 4.0, as measured in accordance with ASTM E3160 (2018) and a particle filtration efficiency greater than 35%.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Dec 23, 2025
From: WILMINGTON SAVINGS FUND SOCIETY, FSB
To: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Reel/Frame 074050/0090 →
SECURITY INTEREST Recorded Dec 23, 2025
From: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 074056/0183 →
SECURITY INTEREST Recorded Dec 19, 2025
From: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 074007/0183 →
SECURITY INTEREST Recorded Apr 10, 2025
From: BANK OF AMERICA, N.A.
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 070811/0705 →
SECURITY INTEREST Recorded Mar 27, 2025
From: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
To: WELLS FARGO CAPITAL FINANCE, LLC
Reel/Frame 070648/0190 →
SECURITY INTEREST Recorded Mar 7, 2025
From: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 070440/0731 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2023
From: ORTEGA, ALBERT; URMAN, KEVIN
To: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC
Reel/Frame 064495/0428 →