3m Innovative Properties Company

Shaun M West

Matthew H Frey

Mario Alberto Perez

Jeffrey O Emslander

Ying-Yuh Lu

Karl E Benson

David S Hays

Jason D Clapper

Ross E Behling

Alexander J Kugel

Gregg A Patnode

Jacob D Young

Thomas Q Chastek

Mark E Napierala

Robert D Waid

Joseph C Dingeldein

Christopher J Rother

Eric O Nyaribo

Vasav Sahni

Jay Arthur Esch

Shantanu R Ranade

Ross J DeVolder

Tomoaki Uchiya

Mikhail A Belkin

Sebastian Goris

Mark E Schwartz

Daniel Carvajal

Kent C Hackbarth

Dylan J V Shallbetter

Katelyn M Leniczek

Mark W Emerson

Mitchell AF Johnson

Shannon RA Harnden

Allyson V Grym

Lacey E Mcmullen

The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

Core-sheath filaments and methods of printing an adhesive

A core-sheath filament having a non-tacky sheath and a hot-melt processable adhesive core, the sheath exhibiting a melt flow index of less than 15 grams per 10 minutes, is provided. Methods of making the core-sheath filament and methods of using the core-sheath filament to print a hot-melt processable adhesive onto a primer-treated substrate surface to provide a structural bond are described.

A core-sheath filament including a crosslinkable adhesive core that can be cured using ultraviolet or visible light radiation. These crosslinkable adhesive core compositions can provide very high bond strength and are capable of replacing traditional mechanical fasteners in many industrial applications. Core-sheath filaments including such crosslinkable compositions, crosslinked compositions, articles containing these compositions, and methods of making the articles are provided. The crosslinkable compositions contain pendant aromatic ketone groups or pendant (meth)acryloyl groups that, upon exposure to ultraviolet radiation, result in the formation of crosslinks within the polymeric material. The crosslinked compositions can function as pressure-sensitive adhesives.

Core-sheath filaments including crosslinkable and crosslinked adhesive compositions and methods of making the same

Film constructions and articles including the film constructions, wherein a film construction includes: a backing (or an adhesive layer) having a first major surface and a second major surface; and a release layer disposed on the first major surface of the backing (or adhesive layer), wherein the release layer includes polylactic acid.

Film constructions and articles

Growing community of inventors

Saint Paul, MN, United States of America

Shaun M West