Mold-in touch fastening product

Patent metadata

Field	Value
Publication number	US-9918526-B2
Application number	US-201514741706-A
Country	US
Kind code	B2
Filing date	Jun 17, 2015
Priority date	Jun 17, 2015
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A male touch fastener strip includes an elongated base and a field of male fastener elements each having a stem extending from a broad face of the base and a head for engaging fibers. The fastener element stems and broad face of the base together form a unitary mass of resin, such as a resin containing a magnetically attractable substance. Wings extend from respective longitudinal edges of the base and define discrete corrugations extending in a series along the fastener strip and forming corresponding undulations in the rear face of the strip along its longitudinal edges. The corrugated wings can also support a foam gasket.

First claim

What is claimed is:

1. A male touch fastener strip having a front fastening face and a rear face, the strip comprising:
an elongated base of a material comprising a magnetically attractable substance dispersed throughout a synthetic resin; and
a field of exposed male fastener elements each having a stem extending from the base on the front fastening face of the strip;
wherein the base has an areal heat capacity of between about 15 and 65 milli-Joules per square centimeter degree C.

2. The touch fastener strip of claim 1 , wherein the magnetically attractable substance comprises between about 30 and 40 percent of the material, by weight.

3. The touch fastener strip of claim 1 , wherein the areal heat capacity is between about 45 and 65 milli-Joules per square centimeter degree C.

4. The touch fastener strip of claim 1 , wherein the magnetically attractable substance is in a form of discrete particles of the substance dispersed throughout the synthetic resin.

5. The touch fastener strip of claim 1 , further comprising a pair of wings, each wing extending from a respective longitudinal edge of the base and angled, in an unloaded state, toward the rear face of the strip.

6. The touch fastener strip of claim 5 , further comprising longitudinal walls rising from the base on either side of the field of male fastener elements and inboard of the wings.

7. The touch fastener strip of claim 5 , wherein each wing defines discrete corrugations extending in a series along the fastener strip and forming corresponding undulations in the rear face of the strip along longitudinal edges of the fastener strip.

8. The touch fastener strip of claim 7 , wherein the corrugations define a corrugation amplitude, at outer edges of the wings, of at least twice a nominal edge thickness of the wings.

9. The touch fastener strip of claim 7 , wherein the corrugations feature a saw tooth profile at outboard edges of the wings.

10. The touch fastener strip of claim 7 , wherein each wing carries a respective strip of foam adhered to the wing on a same side of the fastener strip as the fastener elements.

11. The touch fastener strip of claim 10 , wherein the strips of foam overlay the corrugations.

Assignees

• Velcro BVBA

Inventors

• Mascarenhas Karl S
• Cina Michael
• Voigt Paul Joseph

Classifications

• A44B18/0061

  Male or hook elements (A44B18/0053 takes precedence) · CPC title

• A44B18/008

  Hooks or loops provided with means to reinforce the attachment, e.g. by adhesive means (tab fastener elements for absorbent pads combining adhesive and mechanical fastening A61F13/581) · CPC title

• A44B18/0076 Primary

  Adaptations for being fixed to a moulded article during moulding · CPC title