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US 6,994,904 B2Granted
Pressure sensitive adhesive fibers with a reinforcing material
Assignee3M Innovative Properties Company
InventorsEugene G. Joseph, Zhiming Zhou, Randy A. Hoff, Albert I. Everaerts, Wayne K. Dunshee, Mary L. Brown
Life of this patent
Estimating the term…
Abstract
This invention is directed to a reinforced adhesive fiber that includes a pressure sensitive adhesive component and a reinforcing material within the pressure sensitive adhesive component.
Claims34
An adhesive nonwoven web comprising pressure sensitive adhesive fibers, wherein the pressure sensitive adhesive fibers comprise:
- a pressure sensitive adhesive component;
- and
- an organic polymeric reinforcing material comprising a plurality of substantially continuous minimicrofibers having a diameter of no greater than about 10 microns within the pressure sensitive adhesive component;
- wherein the pressure sensitive adhesive fibers comprise 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, and further wherein a nonwoven web comprising the pressure sensitive adhesive fibers and having a basis weight of about 55 g/m2 has a maximum load of at least about 30 g/cm, which is at least about 150% of the load at yield point, and an elongation at break of at least about 50%.
1 more element
An adhesive nonwoven web comprising pressure sensitive adhesive fibers, wherein the pressure sensitive adhesive fibers comprise:
- a pressure sensitive adhesive component;
- and
- a reinforcing material comprising a metallocene-catalyzed polyolefin within the pressure sensitive adhesive component;
- wherein the reinforcing material comprises a plurality of substantially continuous minimicrofibers having a diameter of no greater than about 10 microns;
- wherein the pressure sensitive adhesive fibers comprise 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 the reinforcing material based on a total weight of the pressure sensitive adhesive fibers, and further wherein a nonwoven web comprising the pressure sensitive adhesive fibers and having a basis weight of about 55 g/m2 has a maximum load of at least about 30 g/cm, which is at least about 150% of the load at yield point, and an elongation at break of at least about 50%.
2 more elements
An adhesive nonwoven web comprising pressure sensitive adhesive fibers, wherein the pressure sensitive adhesive fibers comprise:
- a pressure sensitive adhesive component comprising a crosslinked acrylate copolymer, wherein the crosslinked acrylate copolymer comprises copolymerized monomers comprising at least one monoethylenically unsaturated alkyl (meth)acrylate monomer, at least one monoethylenically unsaturated free-radically copolymerizable reinforcing monomer having a homopolymer glass transition temperature higher than that of the alkyl (meth)acrylate monomer;
- and
- a reinforcing material comprising a metallocene-catalyzed polyolefin within the pressure sensitive adhesive component;
- wherein the reinforcing material comprises a plurality of substantially continuous minimicrofibers having a diameter of no greater than about 10 microns;
- wherein the pressure sensitive adhesive fibers comprise 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 the reinforcing material based on a total weight of the pressure sensitive adhesive fibers, and further wherein a nonwoven web comprising the pressure sensitive adhesive fibers and having a basis weight of about 55 g/m2 has a maximum load of at least about 30 g/cm, which is at least about 150% of the load at yield point, and an elongation at break of at least about 50%.
2 more elements
An adhesive nonwoven web comprising pressure sensitive adhesive fibers, wherein the pressure sensitive adhesive fibers comprise:
- a pressure sensitive adhesive component;
- and
- an organic polymeric reinforcing material within the pressure sensitive adhesive component, wherein the organic polymeric reinforcing material has a yield strength of no greater than about 20 MPa and an elongation at break of at least about 50%;
- wherein the reinforcing material comprises a plurality of substantially continuous minimicrofibers having a diameter of no greater than about 10 microns;
- wherein the pressure sensitive adhesive fibers comprise 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 the organic polymeric reinforcing material based on a total weight of the pressure sensitive adhesive fibers, and further wherein a nonwoven web comprising the pressure sensitive adhesive fibers and having a basis weight of about 55 g/m2 has a maximum load of at least about 30 g/cm, which is at least about 150% of the load at yield point, and an elongation at break of at least about 50%.
2 more elements
Dependencies are inferred from the claim text.