Scrim-reinforced cushion mat for carpet tiles

Patent metadata

Field	Value
Publication number	US-11825970-B2
Application number	US-202217970049-A
Country	US
Kind code	B2
Filing date	Oct 20, 2022
Priority date	Nov 2, 2018
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A carpet tile includes a textile top member and a cushion 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 cushion mat includes a polymeric material component having polymer fibers that are randomly oriented and entangled together and a scrim reinforcement that is disposed within the polymeric material component. The scrim reinforcement reinforces and stabilizes the polymeric material component and is entirely covered and concealed by the intermeshed polymer fibers.

First claim

What is claimed is:

1. A method of manufacturing a carpet tile comprising:
providing a cushion mat comprising:
a polymeric material component comprising a first portion of polymer fibers that are randomly oriented and that are entangled together and a second portion of polymer fibers that are randomly oriented and entangled together; and
a scrim reinforcement that is disposed within the polymeric material component to mechanically reinforce and stabilize the polymeric material component, the scrim reinforcement being disposed within the polymeric material component so that the scrim reinforcement is positioned between and separates the first portion of polymer fibers from the second portion of polymer fibers and is entirely covered and concealed by the entangled polymer fibers of the first portion of fibers and second portion of fibers to prevent exposure of the scrim reinforcement to a user; and

coupling the cushion mat to a textile top member of the carpet tile via an adhesive material, the textile top member comprising:
carpet yarns; and
a backing coupled with the carpet yarns;

wherein the adhesive material penetrates into the first portion of polymer fibers of the polymeric material component to couple the cushion mat to the textile top member of the carpet tile; and
wherein the scrim reinforcement is configured to control penetration of the adhesive material so that the adhesive material does not penetrate into the second portion of polymer fibers.

2. The method of claim 1 , wherein the adhesive material that penetrates into the entangled polymer fibers of the polymeric material component comprises a thermoplastic material or a plastisol.

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

4. The method of claim 1 , wherein the polymer fibers of the polymeric material component are mechanically needled together in a manner that ensures that the polymeric material component and scrim reinforcement are mechanically bonded such that the cushion mat does not include an adhesive material that bonds the polymer fibers and scrim reinforcement together.

5. The method of claim 1 , wherein the scrim reinforcement is non-centered within the polymeric material component so that the scrim reinforcement is positioned closer to a top surface of the polymeric material component than a bottom surface of the polymeric material component.

6. The method of claim 5 , wherein the scrim 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 scrim reinforcement and at least 5% of the polymeric material of the polymeric material component is positioned above the scrim reinforcement.

7. The method of claim 1 , wherein the cushion mat has a thickness between 1 and 8 millimeters.

8. The method of claim 1 , wherein the cushion mat has a weight of between 250 and 1,000 grams per square meter (gsm).

9. The method of claim 1 , wherein the scrim reinforcement consists of glass fibers having an average fiber diameter between about 10 and 90 tex.

10. The method of claim 1 , wherein the cushion mat includes a binder that adheres or bonds the first portion of polymer fibers, the second portion of polymer fibers, and the scrim reinforcement together.

11. The method of claim 1 , wherein the cushion mat does not include any binder or adhesive materials below the scrim reinforcement.

12. The method of claim 1 , wherein the first portion of polymer fibers or the second portion of polymer fibers have an average fiber diameter of between 0.5 and 10 denier.

13. The carpet tile of claim 11 , wherein the first portion of polymer fibers are mechanically needled together with the second portion of polymer fibers so that the scrim reinforcement is mechanically bonded to the first portion of polymer fibers and the second portion of polymer fibers.

14. A method of manufacturing a carpet tile comprising:
providing a cushion mat comprising:
a first portion of polymer fibers that are randomly oriented and that are entangled together;
a second portion of polymer fibers that are randomly oriented and entangled together; and
a scrim reinforcement that is positioned between and separates the first portion of polymer fibers from the second portion of polymer fibers so that the scrim reinforcement is entirely covered and concealed by the entangled polymer fibers of the first portion of fibers and second portion of fibers to prevent exposure of the scrim reinforcement to a user, the scrim reinforcement being configured to mechanically reinforce and stabilize the polymeric material component and carpet tile; and

coupling the cushion mat to a textile top member of the carpet tile via a thermoplastic material, the textile top member comprising:
carpet yarns; and
a backing coupled with the carpet yarns;

wherein the thermoplastic material penetrates into the first portion of polymer fibers to couple the cushion mat to the textile top member of the carpet tile; and
wherein the scrim reinforcement is configured to control penetration of the thermoplastic material so that the thermoplastic material does not penetrate into the second portion of polymer fibers.

15. The method of claim 14 , wherein the cushion mat has a thickness between 1 and 8 millimeters.

16. The method of claim 14 , wherein the cushion mat has a weight of between 250 and 1,000 grams per square meter (gsm).

17. The method of claim 14 , wherein the polymer fibers of the first portion or the second portion of polymer fibers comprises polyesters, polyolefins, or a combination of polyesters and polyolefins.

18. The method of claim 14 , wherein the cushion mat does not include a binder that adhesively bonds the polymer fibers together.

19. The method of claim 14 , wherein the scrim reinforcement is positioned so that the second portion of polymer fibers is at least 65% of a volume of the cushion mat and the first portion of polymer fibers is at least 5% of the volume of the cushion mat.

20. The method of claim 14 , wherein the cushion mat does not include any binder or adhesive materials below the scrim reinforcement.

Assignees

• Johns Manville

Inventors

• Himstedt Heath H
• Nandi Souvik
• Horn Katelyn Grace
• Sharpe Philip Christopher

Classifications

• A47G27/0212 Primary

  to support or cushion · CPC title

• A47G27/0275

  Surface patterning of carpet modules, e.g. of carpet tiles · 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

• D06N7/0078

  the back coating or pre-coat being applied as a hot melt · CPC title

• D06N7/0081

  with at least one extra fibrous layer at the backing, e.g. stabilizing fibrous layer, fibrous secondary backing · CPC title