Fiber with odor control component

Patent metadata

Field	Value
Publication number	US-11667776-B2
Application number	US-201916958895-A
Country	US
Kind code	B2
Filing date	Aug 26, 2019
Priority date	Aug 31, 2018
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

The present disclosure provides a fiber and fabrics made therefrom. In an embodiment, a fiber is provided and includes an odor control composition. The odor control composition includes (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide.

First claim

The invention claimed is:

1. A fiber comprising:
an odor control composition, the odor control composition comprising:
(A) from 85 wt % to 99.5 wt % of an olefin-based polymer
(B) from 15 wt % to 0.5 wt % of an odor suppressant comprising a blend of:
(i) an ionomer;
(ii) particles of zinc oxide; and
(iii) particles of copper oxide.

2. The fiber of claim 1 wherein the odor control composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

3. The fiber of claim 1 , wherein the olefin-based polymer is an ethylene/alpha-olefin copolymer.

4. The fiber of claim 1 wherein the ionomer is a zinc salt of a polymer selected from the group of ethylene/methyl-methacrylic acid, ethylene/vinyl acrylic acid, ethylene/methacrylate, ethylene/n-butyl acrylic acid, and ethylene acrylic acid.

5. The fiber of claim 1 , wherein the ionomer is a zinc ionomer.

6. The fiber of claim 1 , wherein the particles of zinc oxide have a D50 particle size from 100 nm to 3000 nm.

7. The fiber of claim 1 , wherein the particles of zinc oxide have
a surface area from 1 m 2 /g to 9 m 2 /g; and
a porosity less than 0.020 m 3 /g.

8. The fiber of claim 1 , wherein the particles of copper oxide are selected from the group of copper (I) oxide and copper (II) oxide.

9. The fiber of claim 1 , wherein a weight percent ratio between the ionomer (Bi) the zinc oxide (Bii) and the copper oxide (Biii) is from 150:100:1 to 2.9:2.5:1.

10. The fiber of claim 1 wherein the fiber is a mono-component fiber.

11. The fiber of claim 1 wherein the fiber is a bi-component fiber comprising:
a first component that is the odor control composition;
a second component that is a polymeric material different than the odor control composition.

12. The fiber of claim 11 wherein the bi-component fiber has a sheath-core structure.

13. The fiber of claim 11 wherein the first component is present in a sheath.

14. A fabric comprising:
a plurality of fibers, the fibers comprising
an odor control composition, the odor control composition comprising
(A) from 85 wt % to 99.5 wt % of an olefin-based polymer
(B) from 15 wt % to 0.5 wt % of an odor suppressant comprising a blend of:
(i) an ionomer;
(ii) particles of zinc oxide; and
(iii) particles of copper oxide.

15. The fabric of claim 14 wherein the odor control composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

Assignees

• Dow Global Technologies Llc

Inventors

• Matteucci Scott T
• Bonekamp Jeffrey E
• Krasovskiy Arkady L
• Sun Kefu
• Lu Keran
• Wevers Ronald

Classifications

• D01F1/103 Primary

  Agents inhibiting growth of microorganisms · CPC title

• C08K2003/2296

  of zinc · CPC title

• C08L23/0876

  Salts thereof, i.e. ionomers · CPC title

• C08K2201/014

  Additives containing two or more different additives of the same subgroup in C08K · CPC title

• C08K2201/006

  Additives being defined by their surface area · CPC title