3m Innovative Properties Company

Vincent Jusuf

Michael R Gorman

Alexander J Kugel

Dylan T Cosgrove

Fay T Salmon

Benjamin J Bending

Matthew T Holbrook

Dean A Miner

Scott M Niemi

Kristen L Bellmer

Nicholas W Lang

Daniel M Peppin

Scott M Spear

Alex P Beane

Articles comprising, in order: a first adherend, a first primer layer, an adhesive layer, and a second adherend are provided, where the adhesive layer comprises pressure sensitive adhesive domains and structural adhesive domains. Typically, the first primer layer covers first portions of the first adherend adjacent to structural adhesive domains and does not cover second portions of the first adherend adjacent to pressure sensitive adhesive domains. Methods of making such articles are provided, which comprise applying a cure-initiating primer to first portions of the first adherend to form a first primer layer while leaving second portions of the first adherend bare of the first primer layer, and thereafter applying a curable adhesive film over the first primer layer, such that portions of the curable adhesive film are cured to form structural adhesive domains and other portions remain uncured pressure sensitive adhesive domains.

Adjustable hybrid PSA/structural adhesive bonds by patterned surface-initiated cure

Various apparatuses are disclosed including those that have curvature arresting properties. According to one example, the apparatus can optionally include a flexible first film, a second film and a first plurality of features. The first plurality of features can be disposed between the first film and the second film At least some of the first plurality of features are spaced apart from one another by a gap when the first film is not subject to an applied bending force or is subject to the applied bending force below a predetermined magnitude in one or both of the transverse direction and the longitudinal direction, and at least some of the first plurality of features contact one another to arrest a curvature of the first film when the applied bending force is at or above the predetermined magnitude.

Curvature limiting film

Growing community of inventors

Minneapolis, MN, United States of America

Vincent Jusuf