3m Innovative Properties Company

Thomas Q Chastek

Matthew H Frey

Mario Alberto Perez

Sheng Ye

Karl E Benson

Jason D Clapper

David S Hays

Kathleen S Shafer

Mark E Napierala

Cyrus A Anderson

Jacob D Young

Robert D Waid

Ross E Behling

Alexander J Kugel

Jonathan E Janoski

Derek J Dehn

Joseph C Dingeldein

Zhong Chen

Peter O Rekow

Anthony F Schultz

Carla S Thomas

Kelly A Volp

Panu K Zoller

Ning Zhou

Michael C Martin

Eric O Nyaribo

Vasav Sahni

Jay Arthur Esch

Anish Kurian

Petra M Stegmaier

Kerstin Unverhau

Shaun M West

Thomas E Augustine

Shantanu R Ranade

Shujun J Wang

Pierre Reinhard Bieber

Frank Kuester

Doreen Eckhardt

Tomoaki Uchiya

Xiao Gao

Ross J DeVolder

Jan Heimink

Garth V Antila

Douglas L Elmore

Mikhail A Belkin

Sebastian Goris

Bradford L Ryland

Daniel Carvajal

Kent C Hackbarth

Claudia Torre

Regina Sikora

Robert Dennis Waid

Gibson L Batch

Niklas M Matzeit

Ilya A Salnikov

Nicholas G Dyshaw

Joel J Bradley

Richard P Lovelien

Matthew J Younker

Steven D Bray

Eike Kluenker

Robert Denis Waid

Ross John Devolder

Jeremy Del Unruh

Gregory Bernard Gadbois

Steven Dean Bray

Jan Wieneke

Jack Jefferson Williams

Shujun S J Wang

Peggy Sperl Willett

Jan Daniel Forster

Ross J Devolder

Bettina Radek

Provided are an apparatus and methods for dispensing a composition, the apparatus includes a barrel () having an inlet () and an outlet (), a screw () received in the barrel, and a drive mechanism operatively coupled to a shank end () of the screw to rotate the screw. The screw is hollow and includes both interior and exterior surfaces, the interior surfaces defining a cavity () adjacent to the outlet, and wherein the screw further includes a plurality of apertures () through which the cavity and exterior surfaces communicate with each other. The apertures are located along a perforated portion () of the cavity, where the perforated portion can have a transverse dimension that increases with distance from the shank end. The apertures can also provide a hole area, relative to the exterior surface of the screw, that increases with distance from the shank end. The screw can also include a helical flight () having a raised flight section () and one or more lowered flight sections (), where the apertures are at least partially located on the lowered flight section.

Apparatus for dispensing a composition

Provided are methods and systems for dispensing filament adhesive onto a target substrate. A filament adhesive is applied on a target substrate according to a bead application plan, then the applied bead is checked against performance criteria. A second bead application plan is generated, and subsequent filament bead applied according to the second bead application plan.

Method of applying filament adhesive

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

Described are adhesive compositions containing a block copolymer component that includes a midblock segment and a plurality of end block segments, each end block segment comprising polystyrene, a (meth)acrylic functional additive having a glass transition temperature of from 50° C. to 160° C., a first tackifier compatible with the midblock segment and containing a hydrocarbon, and a second tackifier compatible with the end block segments and containing a polyphenylene ether. These compositions are useful in providing pressure-sensitive adhesives that are melt processible, display a high temperature resistance, and effectively bond to low surface energy substrates.

Adhesive compositions, assemblies, and methods thereof

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 curable composition comprising: a hydroxy-functional or ether-functional (meth)acrylate copolymer, an epoxy resin; water; a photocatalyst, and optionally a polyvinyl acetal polymer and/or a film-forming polymer. When cured, provides structural bonding adhesives that are curable under high humidity conditions.

Acrylic-epoxy adhesive composition

Pressure-sensitive adhesive compositions and articles that include a layer of the pressure-sensitive adhesive compositions are provided. The pressure-sensitive adhesive compositions are particularly well suited for use with substrates that have been considered to have difficult to bond to surfaces such as those routinely encountered in the automotive industry. For example, the pressure-sensitive adhesive can be adhered to clear coat compositions, painted surfaces, and various polymeric materials having low energy surfaces (e.g., surfaces having a surface energy no greater than 35 dynes per centimeter).

Adhesive compositions and articles

Methods of bonding together substrates that do not require use of primers, mixing, fixturing, or autoclaving. These methods can include the steps of disposing an adhesive layer on a bonding surface of either substrate, the adhesive layer comprising a curable composition that is dimensionally stable at ambient conditions; either before or after disposing the adhesive layer on the bonding surface, irradiating the adhesive layer with ultraviolet radiation to initiate curing of the curable composition; placing one substrate so as to be bonded to the other substrate by the adhesive layer; and allowing the adhesive layer to cure.

Methods of bonding substrates together

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

An adhesive composition is described comprising a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications.

UV curable epoxy/acrylate adhesive composition

An adhesive article is described comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications and is designed to fail cohesively.

Multilayer adhesive article

Methods of bonding hardware to glass and other substrates are provided that do not require use of primers, mixing, fixturing, or autoclaving. These methods include the steps of disposing an adhesive layer on a bonding surface of either the hardware or the vehicular glass, the adhesive layer comprising a curable composition that is dimensionally stable at ambient conditions; either before or after disposing the adhesive layer on the bonding surface, irradiating the adhesive layer with ultraviolet radiation to initiate curing of the curable composition; placing the hardware so as to be bonded to the vehicular glass by the adhesive layer; and allowing the adhesive layer to cure.

Methods of bonding hardware to vehicular glass

Paint protection film

Growing community of inventors

Saint Paul, MN, United States of America

Thomas Q Chastek