Forming discrete fastener element regions

Details Forming discrete fastener element regions Forming discrete fastener element regions

2006-01-20

2008-11-18

Lavinder, Jack W. (Department: 3677)

Buckles, buttons, clasps, etc.

Including readily dissociable fastener having numerous,...

Reexamination Certificate

active

07451532

ABSTRACT:
A method of making a fastener product having discrete regions of fastener element stems extending from a strip-form base includes providing a gap formed along a peripheral surface of a rotating mold roll, the mold roll having a plurality of cavities exposed about the peripheral surface. A sleeve is introduced to the gap. The sleeve is positioned about the mold roll and covers selected cavities. Molten resin is introduced to the gap such that the resin forms at least a part of the strip-form base of the product at the peripheral mold roll surface and at least partially fills a plurality of the cavities to form fastener element stems as projections extending from the strip-form base, while the resin remains blocked from said selected ones by the sleeve. The resin is solidified and stripped from the peripheral surface of the mold roll by pulling the projections from their respective cavities.

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