Reinforced polymeric nonwoven mat for carpet tiles

Patent metadata

Field	Value
Publication number	US-11618997-B2
Application number	US-202017085060-A
Country	US
Kind code	B2
Filing date	Oct 30, 2020
Priority date	Oct 30, 2020
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A carpet tile includes a textile top member and a carrier mat that is coupled with the textile top member via a thermoplastic material. The textile top member includes carpet yarns and a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns. The carrier mat includes a polymeric material component, a reinforcement, and a binder that is uniformly distributed throughout the polymeric material component and reinforcement component. The polymeric material component includes polymer fibers that are randomly oriented and entangled together. The reinforcement is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent exposure to a user. The reinforcement mechanically reinforces and stabilizes the polymeric material component and carpet tile.

First claim

What is claimed is:

1. A carpet tile comprising:
a textile top member including:
carpet yarns; and
a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns; and

a carrier mat coupled with the textile top member via a thermoplastic material, the carrier mat comprising:
a polymeric material component comprising polymer fibers that are randomly oriented and entangled together;
a reinforcement that is disposed within the polymeric material component so that the reinforcement is entirely covered and concealed by the entangled polymer fibers to prevent the reinforcement from exposure to a user, the reinforcement including a plurality of continuous strand high tenacity fibers and being configured to mechanically reinforce and stabilize the polymeric material component and carpet tile; and
a binder that is uniformly distributed throughout the polymeric material component and reinforcement component to bond the polymer fibers and continuous strand high tenacity fibers together in the carrier mat;

wherein the binder is the only binder that is used to bond the carrier mat together.

2. The carpet tile of claim 1 , wherein the carrier mat has a thickness between 0.25 and 10 millimeters.

3. The carpet tile of claim 1 , wherein the carrier mat has a weight of between 50 and 1,000 grams per square meter (gsm).

4. The carpet tile of claim 1 , wherein the polymer fibers of the polymeric material component comprises polyesters, polyolefins, or a combination of polyesters and polyolefins.

5. The carpet tile of claim 1 , wherein the reinforcement is a grid-pattern scrim made of high tenacity glass or polymer fibers that are oriented in a machine direction and a cross-machine direction.

6. The carpet tile of claim 1 , wherein the carrier mat includes between 5 and 30 weight percent of the binder.

7. The carpet tile of claim 1 , wherein the reinforcement is non-centered within the polymeric material component so that the reinforcement is positioned closer to an upper surface of the polymeric material component than a lower surface of the polymeric material component.

8. The carpet tile of claim 7 , wherein the reinforcement is positioned within the polymeric material component so that at least 60% of the polymeric material of the polymeric material component is positioned below the reinforcement and at least 5% of the polymeric material of the polymeric material component is positioned above the reinforcement.

9. The carpet tile of claim 1 , wherein the reinforcement is between 0.5 and 50 weight percent of the carrier mat.

10. The carpet tile of claim 1 , wherein the continuous strand high tenacity fibers exhibit a maximum load of at least 6 lbf/in and a maximum elongation of 15% when measured according to ASTM D4830.

11. The carpet tile of claim 1 , wherein the binder is a formaldehyde free binder.

12. The carpet tile of claim 11 , wherein the formaldehyde free binder is a thermoplastic material binder.

13. The carpet tile of claim 12 , wherein the continuous strand high tenacity fibers consist of polymer fibers such that the carrier mat is made entirely or recyclable materials.

14. The carpet tile of claim 1 , wherein the polymer fibers are mechanically needled together to mechanically secure the polymeric material component and the reinforcement together.

15. The carpet tile of claim 1 , wherein the thermoplastic material penetrates through the polymeric material component to couple the carrier mat with the textile top member.

16. A carpet tile comprising:
a textile top member including:
carpet yarns; and
a backing that is coupled with the carpet yarns so that the backing structurally supports the carpet yarns; and

a carrier mat coupled with the textile top member via a thermoplastic material, the carrier mat comprising:
a polymeric material component comprising a first layer of polymer fibers that are randomly oriented and entangled together and a second layer of polymer fibers that are randomly oriented and entangled together;
a reinforcement that is disposed between the first layer of polymer fibers and the second layer of polymer fibers so that the reinforcement is entirely covered and concealed by the polymeric material component to prevent the reinforcement from exposure to a user, the reinforcement being configured to mechanically reinforce and stabilize the polymeric material component and carpet tile; and
a binder that is uniformly distributed throughout the polymeric material component and reinforcement component.

17. The carpet tile of claim 16 , wherein the reinforcement is a scrim, threads, nonwoven mat, or chopped strand mat.

18. The carpet tile of claim 16 , wherein the reinforcement consists of continuous strand high tenacity fibers.

19. The carpet tile of claim 16 , wherein the binder is a formaldehyde free binder.

20. The carpet tile of claim 19 , wherein the formaldehyde free binder consists of a thermoplastic material.

21. The carpet tile of claim 16 , wherein the carrier mat has a thickness between 1 and 8 millimeters.

22. The carpet tile of claim 16 , wherein the carrier mat has a weight of between 250 and 1,000 grams per square meter (gsm).

Assignees

• Johns Manville

Inventors

• Himstedt Heath H
• Nandi Souvik
• Sharpe Philip Christopher

Classifications

• D06N2211/066

  Floor coverings · CPC title

• D06N7/0076

  the back coating or pre-coat being a thermoplastic material applied by, e.g. extrusion coating, powder coating or laminating a thermoplastic film · CPC title

• D06N2201/0254

  Polyolefin fibres · CPC title

• D06N7/0086

  characterised by the cushion backing, e.g. foamed polyurethane · CPC title

• D06N7/0063 Primary

  Floor covering on textile basis comprising a fibrous top layer being coated at the back with at least one polymer layer, e.g. carpets, rugs, synthetic turf · CPC title