3m Innovative Properties Company

Todd L Nelson

Michael R Berrigan

Stephen M Sanocki

Mark A Peltier

Neelakandan Chandrasekaran

Thomas P Hanschen

Michael R Gorman

Jayant Chakravarty

Thomas J Gilbert

Gerald Steven Deeb

Shou-Lu G Wang

Stanley Rendon

Steven J Perron

Timothy P Pariseau

Daniel E Johnson

Ibrahim S Gunes

Rebecca A Shipman

William H Sikorski, Jr

Ryan M Luepke

Stuart L Eynon

Vathsala Rajagopal

Kent R Schoenherr

Mary Beth Henke

Bernard G Rolstad

Gerald S Deeb

Jerald W Hall

William H Sikorski

The method of making a laminate () includes stretching a thermoplastic layer () so that it plastically deforms, relaxing the plastically deformed thermoplastic layer () to reduce its tensile strain, and subsequently laminating the thermoplastic layer () to a substrate () to make the laminate (). The stretching, relaxing, and laminating are completed in-line. The thermoplastic layer has a first surface and a second surface opposite the first surface, with the first surface of the thermoplastic layer bearing a plurality of male fastening elements. The second surface of the thermoplastic layer () is laminated to the substrate ().

Method of making a laminate with a stretched thermoplastic layer

The article includes a thermoplastic layer having opposing first and second side edges and a first surface bearing male fastening elements. The thermoplastic layer is plastically deformed and has a retardance profile having an average retardance along a line from the first edge to a location 500 micrometers from the first edge and a distance from the first edge where 75% of the average retardance is observed of at least 10 micrometers. In some cases, a distance between the first and second side edges is up to 50 millimeters. In some cases, the article is a fastening tab. The method includes providing a thermoplastic film having opposing first and second side edges, with a distance between the opposing side edges of up to 50 millimeters, and stretching the thermoplastic film to form the thermoplastic layer, which is plastically deformed. The first surface of the thermoplastic film bears male fastening elements.

Fastening articles and methods of making the same

A method of making extensible web laminates comprising a multilayer film and at least one web layer and the use of such extensible web laminates in personal care articles. The method generally includes activating the multilayer film in a first direction by stretching at least a portion of the multilayer film past the elastic deformation limit of the skin layers and recovering the skin layers with the elastomeric core layer to produce a multilayer film that is elastic in the first direction. The activated multilayer film is subsequently stretched beyond the deformation limit of the skin layers in a second direction substantially perpendicular to the first direction. At least one web layer is applied to the multilayer film while in the stretched state. The multilayer film is then recovered to produce an extensible web laminate.

Method of making extensible web laminates

Growing community of inventors

Eau Claire, WI, United States of America

Todd L Nelson