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Patents

Pressure Sensitive Adhesive Fibers With A Reinforcing Material

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By: Karen McIntyre

Editor, Nonwovens Industry

An adhesive nonwoven web made of pressure sensitive adhesive fibers was patented. The pressure sensitive adhesive fibers comprise: a pressure sensitive adhesive component and an organic polymeric reinforcing material with a plurality of substantially continuous minimicrofibers having a diameter of no greater than about 10 microns within the pressure sensitive adhesive component. The pressure sensitive adhesive fibers make up about 60 weight percent to about 95 weight percent of the pressure sensitive adhesive component and about 5 weight percent to about 40 weight percent of minimicrofibrous organic polymeric reinforcing material based on a total weight of the pressure sensitive adhesive fibers. A nonwoven web made up of the pressure sensitive adhesive fibers has a basis weight of about 55 gpsm and a maximum load of at least about 30 gpcm, which is at least about 150% of the load at yield point. Elongation at break is at least about 50%.

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