3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Randy A Hoff

Eugene G Joseph

John W Louks

Richard L Jacobson

Albert I Everaerts

Wayne K Dunshee

Zhiming Zhou

Mary L Brown

Ashish Kumar Khandpur

Steven C Stickels

Anthony R Clanton

Kenneth C Williams

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.

Pressure sensitive adhesive fibers with a reinforcing material

The present invention provides fibers and products produced therefrom, including nonwoven webs and adhesive articles. The fibers, which can be multilayer fibers, include a pressure-sensitive adhesive composition comprising an acrylate copolymer comprising copolymerized monomers comprising at least one monofunctional alkyl (meth)acrylate monomer and at least one monofunctional free-radically copolymerizable reinforcing monomer having a homopolymer glass transition temperature higher than that of the alkyl (meth)acrylate monomer.

Acrylate copolymeric fibers

A method of forming apertures generally greater than about 0.05 square millimeters in a thin sheet material. The thin sheet material includes a first side and a second side at least one side of the thin sheet material is substantially coated with an adhesive. The method comprises the steps of (a) placing the adhesive-coated thin sheet material on a patterned anvil having a pattern of raised areas wherein the height of the raised areas is equal to or less than the thickness of the thin sheet material and the adhesive; and (b) subjecting the thin sheet material to a sufficient amount of sonic vibrations to aperture the thin sheet material and the adhesive; and whereby the thin sheet material and the adhesive is apertured in a pattern generally the same as the pattern of raised areas on the patterned anvil.

Method of aperturing thin sheet materials

Growing community of inventors

Hudson, WI, United States of America

Randy A Hoff