Touch fastener products

• US 7,648,751 B2
• Filed: 10/16/2007
• Issued: 01/19/2010
• Est. Priority Date: 10/17/2006
• Status: Active Grant

• Current Assignee: Velcro IP Holdings LLC
• Original Assignee: Velcro Industries BV (Chartwell Industries Ltd)
• Inventors: Janzen, Daniel Lee, Line, Kevin Keith
• Primary Examiner(s): THOMAS, ALEXANDER S
• Application Number:
  US11/873,124
• Publication Number:
  US 20080090048A1
• Time in Patent Office: 826 Days
• Field of Search: 428/99, 428/100, 428/900, 244/42
• US Class Current: 428/99
• CPC Class Codes: A44B 18/0076 Adaptations for being fixed to a moulded article during moulding
• CPC Class Codes: B29C 33/16 using magnetic means
• CPC Class Codes: B29C 44/1261 Avoiding impregnation of a preformed part
• CPC Class Codes: B29C 44/1271 the preformed parts being partially covered
• CPC Class Codes: B29K 2105/26 Scrap or recycled material
• CPC Class Codes: B29L 2031/771 Seats
• CPC Class Codes: Y10S 428/90 Magnetic feature
• CPC Class Codes: Y10T 24/27 including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
• CPC Class Codes: Y10T 428/24008 including fastener for attaching to external surface
• CPC Class Codes: Y10T 428/24017 Hook or barb

Abstract

Touch fasteners for use as mold inserts in molding seat foam buns include a sheet-form base a magnetically attractable material disposed on the upper face of the sheet-form base, and a film cover covering the magnetically attractable material wherein maximum slope angle of the film cover, is less than about 75° as measured from the upper surface of the sheet form base to the outside surface of the cover. The magnetically attractable material is a strand of frangible composite constructed to be readily segmented with the seat foam bun during recycling.

Claims

1. A touch fastener comprising:

a sheet-form base comprising an upper face and a lower face;

a plurality of fastener elements disposed in an array on the lower face of the sheet-form base; and

a frangible strand of magnetically attractable composite material secured on the upper face of the sheet-form base, wherein the composite material includes resin and magnetically attractable particles.

2. The touch fastener of claim 1, wherein the magnetically attractable particles are coated onto the resin.

3. The touch fastener of claim 1, wherein the magnetically attractable composite material further comprises an elongated core about which the resin is formed.

4. The touch fastener of claim 3, wherein the core comprises one of a chord, thread, string, and filament.

5. The touch fastener of claim 3 wherein the magnetically attractable particles are adhered to the core.

6. The touch fastener of claim 1, wherein the magnetically attractable composite material includes regions of reduced cross-section to facilitate tearing during recycling.

7. The touch fastener of claim 1, wherein the magnetically attractable composite material is an extruded composite comprising at least about 50% by weight of magnetically attractive particles.

8. The touch fastener of claim 1, further comprising a cover covering the frangible strand of magnetically attractable material and disposed onto the upper face of the base, wherein the cover, when positioned onto the upper face of the base and covering the frangible strand, defines a maximum slope angle of less than about 75°

, as measured from the upper surface of the sheet form base to the outside surface of the cover.

9. The touch fastener of claim 8, wherein the maximum slope angle of the cover is less than about 55°

.

10. The touch fastener of claim 8, wherein the cover is a film less than about 0.010 inch (0.254 mm) thick.

11. The touch fastener of claim 8, wherein the cover is a woven or a non-woven fabric.

12. The touch fastener of claim 8, wherein the frangible strand of magnetically attractable material extends substantially an entire length of the touch fastener and is substantially centered in a width of the touch fastener.

13. The touch fastener of claim 8, further comprising selvedges extending laterally beyond the away of fastener elements.

14. The touch fastener of claim 13, wherein the selvedges are integrally molded with the base.

15. The touch fastener of claim 8, further comprising selvedges formed from an extension of the cover, extending laterally beyond the array of fastener elements.