3m Innovative Properties Company

Mikhail A Belkin

Tien T Wu

Gerry A Hoffdahl

Jimmie Rae Baran, Jr

Andrew R Fox

Jonathan M Lise

Nathan E Schultz

Jacob D Young

Glen O Gregerson

Joseph C Dingeldein

Robert D Waid

Thomas Q Chastek

Mark E Napierala

Bryan L Gerhardt

Eric O Nyaribo

Jay Arthur Esch

Himanshu Jasuja

Shaun M West

Ross J DeVolder

Jr Jimmie R Baran

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 charge-modified particle comprising the inorganic core and a shell surrounding the inorganic core, wherein the shell comprises a copolymer comprising monomeric units corresponding to free-radically polymerizable monomers, and wherein at least one of the monomeric units comprises a substituted benzotriazolylphenolate salt. Methods of making the charge-modified particle by admicellar polymerization are also disclosed.

Charge-modified particles and methods of making the same

An air filter media () including a pleated fibrous filtration web () with a first major side () that includes at least one sorbent-loaded area () in which sorbent particles () are present on a first major surface () of the pleated fibrous filtration web (), at least some of the sorbent particles () being post-pleat-deposited sorbent particles.

Air filter media with post-pleat-deposited sorbent particles

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Minneapolis, MN, United States of America

Mikhail A Belkin